{"id":534275,"date":"2026-04-01T14:14:28","date_gmt":"2026-04-01T07:14:28","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=534275"},"modified":"2026-04-01T14:14:28","modified_gmt":"2026-04-01T07:14:28","slug":"huong-dan-chi-tiet-cach-doi-mat-khau-wifi-tren-dien-thoai-cho-moi-thiet-bi-va-nha-mang","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/huong-dan-chi-tiet-cach-doi-mat-khau-wifi-tren-dien-thoai-cho-moi-thiet-bi-va-nha-mang\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn chi ti\u1ebft c\u00e1ch \u0111\u1ed5i m\u1eadt kh\u1ea9u WiFi tr\u00ean \u0111i\u1ec7n tho\u1ea1i cho m\u1ecdi thi\u1ebft b\u1ecb v\u00e0 nh\u00e0 m\u1ea1ng"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">\u0110\u1ed5i m\u1eadt kh\u1ea9u WiFi b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i l\u00e0 qu\u00e1 tr\u00ecnh thay \u0111\u1ed5i m\u00e3 truy c\u1eadp m\u1ea1ng WiFi tr\u1ef1c ti\u1ebfp tr\u00ean thi\u1ebft b\u1ecb di \u0111\u1ed9ng m\u00e0 kh\u00f4ng c\u1ea7n d\u00f9ng \u0111\u1ebfn m\u00e1y t\u00ednh. Vi\u1ec7c n\u00e0y gi\u00fap b\u1ea1n b\u1ea3o v\u1ec7 m\u1ea1ng kh\u1ecfi truy c\u1eadp tr\u00e1i ph\u00e9p v\u00e0 d\u1ec5 d\u00e0ng th\u1ef1c hi\u1ec7n m\u1ecdi l\u00fac, m\u1ecdi n\u01a1i.<\/span><\/p>\n<p><b>Th\u00f4ng tin nhanh:<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">C\u00f3 th\u1ec3 \u0111\u1ed5i m\u1eadt kh\u1ea9u WiFi b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i cho h\u1ea7u h\u1ebft c\u00e1c lo\u1ea1i modem v\u00e0 nh\u00e0 m\u1ea1ng Vi\u1ec7t Nam.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Ch\u1ec9 c\u1ea7n bi\u1ebft \u0111\u1ecba ch\u1ec9 IP modem (v\u00ed d\u1ee5: 192.168.1.1) v\u00e0 t\u00e0i kho\u1ea3n \u0111\u0103ng nh\u1eadp qu\u1ea3n tr\u1ecb.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Kh\u00f4ng c\u1ea7n c\u00e0i \u0111\u1eb7t app, c\u00f3 th\u1ec3 thao t\u00e1c tr\u1ef1c ti\u1ebfp tr\u00ean tr\u00ecnh duy\u1ec7t \u0111i\u1ec7n tho\u1ea1i.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">\u0110\u1ed5i m\u1eadt kh\u1ea9u WiFi gi\u00fap t\u0103ng b\u1ea3o m\u1eadt, ng\u0103n ch\u1eb7n truy c\u1eadp tr\u00e1i ph\u00e9p v\u00e0 t\u1ed1i \u01b0u t\u1ed1c \u0111\u1ed9 m\u1ea1ng.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">C\u00e1c nh\u00e0 m\u1ea1ng l\u1edbn nh\u01b0 Viettel, VNPT, FPT \u0111\u1ec1u h\u1ed7 tr\u1ee3 \u0111\u1ed5i m\u1eadt kh\u1ea9u qua web v\u00e0 app.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">L\u01b0u \u00fd ch\u1ecdn m\u1eadt kh\u1ea9u m\u1ea1nh, kh\u00f3 \u0111o\u00e1n v\u00e0 thay \u0111\u1ed5i \u0111\u1ecbnh k\u1ef3 \u0111\u1ec3 b\u1ea3o v\u1ec7 m\u1ea1ng WiFi.<\/span><\/li>\n<\/ul>\n<h2><b>1. T\u1ea1i sao n\u00ean \u0111\u1ed5i m\u1eadt kh\u1ea9u WiFi b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">\u0110\u1ed5i m\u1eadt kh\u1ea9u WiFi b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i l\u00e0 gi\u1ea3i ph\u00e1p b\u1ea3o m\u1eadt \u0111\u01a1n gi\u1ea3n, nhanh ch\u00f3ng m\u00e0 ai c\u0169ng c\u00f3 th\u1ec3 t\u1ef1 l\u00e0m, kh\u00f4ng c\u1ea7n nh\u1edd k\u1ef9 thu\u1eadt vi\u00ean. Vi\u1ec7c th\u1ef1c hi\u1ec7n b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i gi\u00fap b\u1ea1n ch\u1ee7 \u0111\u1ed9ng b\u1ea3o v\u1ec7 m\u1ea1ng WiFi c\u1ee7a m\u00ecnh m\u1ecdi l\u00fac, m\u1ecdi n\u01a1i m\u00e0 kh\u00f4ng c\u1ea7n m\u00e1y t\u00ednh.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Trong th\u1eddi \u0111\u1ea1i s\u1ed1 h\u00f3a, WiFi l\u00e0 \u201cc\u1eeda ng\u00f5\u201d ch\u00ednh \u0111\u1ec3 c\u00e1c thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i Internet t\u1ea1i nh\u00e0 ho\u1eb7c v\u0103n ph\u00f2ng. N\u1ebfu m\u1eadt kh\u1ea9u WiFi b\u1ecb l\u1ed9 ho\u1eb7c x\u00e0i l\u00e2u kh\u00f4ng \u0111\u1ed5i, nguy c\u01a1 b\u1ecb truy c\u1eadp tr\u00e1i ph\u00e9p, m\u1ea5t an to\u00e0n d\u1eef li\u1ec7u, gi\u1ea3m t\u1ed1c \u0111\u1ed9 m\u1ea1ng l\u00e0 r\u1ea5t l\u1edbn. \u0110\u00f3 l\u00e0 l\u00fd do b\u1ea1n n\u00ean th\u01b0\u1eddng xuy\u00ean thay \u0111\u1ed5i m\u1eadt kh\u1ea9u WiFi \u2013 \u0111\u1eb7c bi\u1ec7t khi:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">B\u1ea1n nghi ng\u1edd c\u00f3 ng\u01b0\u1eddi ngo\u00e0i bi\u1ebft ho\u1eb7c chia s\u1ebb m\u1eadt kh\u1ea9u WiFi c\u1ee7a m\u00ecnh.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">B\u1ea1n v\u1eeba cho ai \u0111\u00f3 d\u00f9ng nh\u1edd m\u1ea1ng v\u00e0 mu\u1ed1n h\u1ea1n ch\u1ebf truy c\u1eadp sau \u0111\u00f3.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">B\u1ea1n qu\u00ean m\u1eadt kh\u1ea9u c\u0169, c\u1ea7n thi\u1ebft l\u1eadp l\u1ea1i quy\u1ec1n ki\u1ec3m so\u00e1t m\u1ea1ng.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">B\u1ea1n mu\u1ed1n t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt ho\u1eb7c t\u1ed1i \u01b0u h\u00f3a ch\u1ea5t l\u01b0\u1ee3ng m\u1ea1ng WiFi.<\/span><\/li>\n<\/ul>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-1.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-1-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-1-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-534278 webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-1.jpg\" alt=\"cach-doi-mat-khau-wifi-bang-dien-thoai-1\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-1.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-1-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-1-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<p><span style=\"font-weight: 400;\">Ch\u1ec9 v\u1edbi v\u00e0i thao t\u00e1c tr\u00ean \u0111i\u1ec7n tho\u1ea1i (Android ho\u1eb7c iPhone), b\u1ea1n \u0111\u00e3 c\u00f3 th\u1ec3 \u0111\u1ed5i pass WiFi cho h\u1ea7u h\u1ebft c\u00e1c lo\u1ea1i modem\/router ph\u1ed5 bi\u1ebfn t\u1ea1i Vi\u1ec7t Nam. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd h\u01b0\u1edbng d\u1eabn chi ti\u1ebft c\u00e1ch \u0111\u1ed5i m\u1eadt kh\u1ea9u WiFi b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i cho t\u1eebng nh\u00e0 m\u1ea1ng v\u00e0 thi\u1ebft b\u1ecb, gi\u00fap b\u1ea1n t\u1ef1 tin b\u1ea3o v\u1ec7 m\u1ea1ng nh\u00e0 m\u00ecnh.<\/span><\/p>\n<h2><b>2. Chu\u1ea9n b\u1ecb g\u00ec tr\u01b0\u1edbc khi \u0111\u1ed5i m\u1eadt kh\u1ea9u WiFi b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 \u0111\u1ed5i m\u1eadt kh\u1ea9u WiFi tr\u00ean \u0111i\u1ec7n tho\u1ea1i th\u00e0nh c\u00f4ng, b\u1ea1n c\u1ea7n chu\u1ea9n b\u1ecb m\u1ed9t s\u1ed1 th\u00f4ng tin v\u00e0 \u0111\u1ea3m b\u1ea3o thi\u1ebft b\u1ecb c\u1ee7a m\u00ecnh s\u1eb5n s\u00e0ng k\u1ebft n\u1ed1i v\u1edbi modem.<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">K\u1ebft n\u1ed1i \u0111i\u1ec7n tho\u1ea1i v\u1edbi m\u1ea1ng WiFi c\u1ea7n \u0111\u1ed5i. N\u1ebfu b\u1ea1n kh\u00f4ng c\u00f2n v\u00e0o \u0111\u01b0\u1ee3c m\u1ea1ng, c\u00f3 th\u1ec3 d\u00f9ng 3G\/4G \u0111\u1ec3 truy c\u1eadp modem t\u1eeb xa (n\u1ebfu modem h\u1ed7 tr\u1ee3).<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">T\u00ecm \u0111\u1ecba ch\u1ec9 IP \u0111\u0103ng nh\u1eadp modem:<\/span>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Th\u00f4ng th\u01b0\u1eddng l\u00e0 192.168.1.1, 192.168.0.1, 192.168.l.l ho\u1eb7c 192.168.ll.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">\u0110\u1ecba ch\u1ec9 n\u00e0y \u0111\u01b0\u1ee3c ghi \u1edf m\u1eb7t d\u01b0\u1edbi modem ho\u1eb7c trong s\u00e1ch h\u01b0\u1edbng d\u1eabn \u0111i k\u00e8m khi l\u1eafp \u0111\u1eb7t.<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Chu\u1ea9n b\u1ecb t\u00e0i kho\u1ea3n \u0111\u0103ng nh\u1eadp qu\u1ea3n tr\u1ecb modem:<\/span>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">M\u1eb7c \u0111\u1ecbnh th\u01b0\u1eddng l\u00e0 admin\/admin ho\u1eb7c user\/admin, b\u1ea1n n\u00ean \u0111\u1ed5i sau khi \u0111\u0103ng nh\u1eadp l\u1ea7n \u0111\u1ea7u \u0111\u1ec3 t\u0103ng b\u1ea3o m\u1eadt.<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Ghi ch\u00fa m\u1eadt kh\u1ea9u WiFi c\u0169 (n\u1ebfu nh\u1edb) v\u00e0 chu\u1ea9n b\u1ecb m\u1eadt kh\u1ea9u m\u1edbi m\u1ea1nh:<\/span>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">M\u1eadt kh\u1ea9u n\u00ean c\u00f3 t\u1ed1i thi\u1ec3u 8 k\u00fd t\u1ef1, bao g\u1ed3m ch\u1eef hoa, ch\u1eef th\u01b0\u1eddng, s\u1ed1 v\u00e0 k\u00fd t\u1ef1 \u0111\u1eb7c bi\u1ec7t.<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">C\u00f3 th\u1ec3 c\u00e0i \u0111\u1eb7t \u1ee9ng d\u1ee5ng qu\u1ea3n l\u00fd WiFi c\u1ee7a nh\u00e0 m\u1ea1ng (n\u1ebfu mu\u1ed1n thao t\u00e1c nhanh h\u01a1n).<\/span><\/li>\n<\/ol>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-2.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-2-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-2-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-534279 webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-2.jpg\" alt=\"cach-doi-mat-khau-wifi-bang-dien-thoai-2\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-2.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-2-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-2-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<p><span style=\"font-weight: 400;\">M\u1eb9o: N\u1ebfu b\u1ea1n qu\u00ean m\u1eadt kh\u1ea9u c\u0169 v\u00e0 kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c modem, h\u00e3y reset l\u1ea1i modem v\u1ec1 tr\u1ea1ng th\u00e1i g\u1ed1c b\u1eb1ng n\u00fat c\u1ee9ng tr\u00ean thi\u1ebft b\u1ecb. Sau \u0111\u00f3, \u0111\u0103ng nh\u1eadp b\u1eb1ng t\u00e0i kho\u1ea3n m\u1eb7c \u0111\u1ecbnh \u0111\u1ec3 \u0111\u1ed5i m\u1eadt kh\u1ea9u m\u1edbi.<\/span><\/p>\n<h2><b>3. H\u01b0\u1edbng d\u1eabn chung: C\u00e1ch \u0111\u1ed5i m\u1eadt kh\u1ea9u WiFi b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i cho h\u1ea7u h\u1ebft c\u00e1c modem\/router<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">B\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ed5i m\u1eadt kh\u1ea9u WiFi b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i cho \u0111a s\u1ed1 c\u00e1c lo\u1ea1i modem\/router ph\u1ed5 bi\u1ebfn t\u1ea1i Vi\u1ec7t Nam ch\u1ec9 v\u1edbi tr\u00ecnh duy\u1ec7t web. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c b\u01b0\u1edbc c\u01a1 b\u1ea3n \u00e1p d\u1ee5ng cho h\u1ea7u h\u1ebft m\u1ecdi nh\u00e0 m\u1ea1ng v\u00e0 thi\u1ebft b\u1ecb.<\/span><\/p>\n<h3><b>3.1. \u0110\u1ed5i m\u1eadt kh\u1ea9u WiFi b\u1eb1ng tr\u00ecnh duy\u1ec7t tr\u00ean \u0111i\u1ec7n tho\u1ea1i<\/b><\/h3>\n<ol>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">M\u1edf tr\u00ecnh duy\u1ec7t (Chrome, Safari, Firefox\u2026) tr\u00ean \u0111i\u1ec7n tho\u1ea1i.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Nh\u1eadp \u0111\u1ecba ch\u1ec9 IP c\u1ee7a modem v\u00e0o thanh \u0111\u1ecba ch\u1ec9 (VD: 192.168.1.1 ho\u1eb7c 192.168.0.1).<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">\u0110\u0103ng nh\u1eadp b\u1eb1ng t\u00e0i kho\u1ea3n qu\u1ea3n tr\u1ecb (th\u01b0\u1eddng l\u00e0 admin\/admin).<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">T\u00ecm m\u1ee5c Wireless Settings ho\u1eb7c WiFi Settings, ch\u1ecdn Wireless Security ho\u1eb7c Security.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Nh\u1eadp m\u1eadt kh\u1ea9u m\u1edbi v\u00e0o tr\u01b0\u1eddng Password\/Passphrase\/Pre-Shared Key.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">L\u01b0u l\u1ea1i thay \u0111\u1ed5i (\u1ea5n Save\/Apply).<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Kh\u1edfi \u0111\u1ed9ng l\u1ea1i modem n\u1ebfu \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u.<\/span><\/li>\n<\/ol>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-3.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-3-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-3-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-534280 webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-3.jpg\" alt=\"cach-doi-mat-khau-wifi-bang-dien-thoai-3\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-3.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-3-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-3-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<h3><b>3.2. \u0110\u1ed5i m\u1eadt kh\u1ea9u WiFi b\u1eb1ng \u1ee9ng d\u1ee5ng c\u1ee7a nh\u00e0 m\u1ea1ng\/modem (n\u1ebfu c\u00f3)<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Nhi\u1ec1u nh\u00e0 m\u1ea1ng nh\u01b0 Viettel, VNPT, FPT c\u00f3 app qu\u1ea3n l\u00fd WiFi ri\u00eang: My Viettel, Hi FPT, My VNPT\u2026<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">B\u1ea1n ch\u1ec9 c\u1ea7n \u0111\u0103ng nh\u1eadp t\u00e0i kho\u1ea3n, ch\u1ecdn thi\u1ebft b\u1ecb\/m\u1ea1ng mu\u1ed1n \u0111\u1ed5i, v\u00e0o m\u1ee5c \u201cQu\u1ea3n l\u00fd WiFi\u201d &gt; \u201c\u0110\u1ed5i m\u1eadt kh\u1ea9u\u201d v\u00e0 nh\u1eadp m\u1eadt kh\u1ea9u m\u1edbi l\u00e0 xong.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">App th\u01b0\u1eddng c\u00f3 giao di\u1ec7n thu\u1eadn ti\u1ec7n, h\u1ed7 tr\u1ee3 c\u1ea3 iOS l\u1eabn Android.<\/span><\/li>\n<\/ul>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-4.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-4-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-4-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-534281 webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-4.jpg\" alt=\"cach-doi-mat-khau-wifi-bang-dien-thoai-4\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-4.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-4-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-4-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<p><span style=\"font-weight: 400;\">L\u01b0u \u00fd: Sau khi \u0111\u1ed5i m\u1eadt kh\u1ea9u, c\u00e1c thi\u1ebft b\u1ecb \u0111ang k\u1ebft n\u1ed1i s\u1ebd b\u1ecb ng\u1eaft v\u00e0 c\u1ea7n nh\u1eadp l\u1ea1i m\u1eadt kh\u1ea9u m\u1edbi \u0111\u1ec3 truy c\u1eadp WiFi.<\/span><\/p>\n<h2><b>4. H\u01b0\u1edbng d\u1eabn \u0111\u1ed5i m\u1eadt kh\u1ea9u WiFi theo nh\u00e0 m\u1ea1ng (Viettel, VNPT, FPT)<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">M\u1ed7i nh\u00e0 m\u1ea1ng c\u00f3 c\u00e1c lo\u1ea1i modem v\u00e0 giao di\u1ec7n qu\u1ea3n l\u00fd kh\u00e1c nhau, nh\u01b0ng b\u1ea1n \u0111\u1ec1u c\u00f3 th\u1ec3 \u0111\u1ed5i m\u1eadt kh\u1ea9u WiFi b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i r\u1ea5t d\u1ec5 d\u00e0ng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 h\u01b0\u1edbng d\u1eabn chi ti\u1ebft cho t\u1eebng nh\u00e0 m\u1ea1ng l\u1edbn t\u1ea1i Vi\u1ec7t Nam.<\/span><\/p>\n<h3><b>4.1. C\u00e1ch \u0111\u1ed5i m\u1eadt kh\u1ea9u WiFi Viettel b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i<\/b><\/h3>\n<h4><b>a) \u0110\u1ed5i qua tr\u00ecnh duy\u1ec7t web<\/b><\/h4>\n<ol>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">K\u1ebft n\u1ed1i \u0111i\u1ec7n tho\u1ea1i v\u1edbi WiFi Viettel c\u1ea7n \u0111\u1ed5i m\u1eadt kh\u1ea9u.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">M\u1edf tr\u00ecnh duy\u1ec7t, nh\u1eadp 192.168.1.1 ho\u1eb7c 192.168.0.1 v\u00e0o thanh \u0111\u1ecba ch\u1ec9.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">\u0110\u0103ng nh\u1eadp v\u1edbi user\/pass m\u1eb7c \u0111\u1ecbnh (th\u01b0\u1eddng l\u00e0 admin\/admin ho\u1eb7c xem d\u01b0\u1edbi \u0111\u00e1y modem).<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Ch\u1ecdn m\u1ee5c Network &gt; WLAN &gt; SSID Settings ho\u1eb7c Wireless Security.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Nh\u1eadp m\u1eadt kh\u1ea9u m\u1edbi v\u00e0o tr\u01b0\u1eddng WPA Key\/Password.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">L\u01b0u l\u1ea1i thay \u0111\u1ed5i.<\/span><\/li>\n<\/ol>\n<h4><b>b) \u0110\u1ed5i b\u1eb1ng \u1ee9ng d\u1ee5ng My Viettel<\/b><\/h4>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">T\u1ea3i My Viettel tr\u00ean App Store ho\u1eb7c Google Play.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">\u0110\u0103ng nh\u1eadp s\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u0111\u0103ng k\u00fd d\u1ecbch v\u1ee5 Internet.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Ch\u1ecdn m\u1ee5c Qu\u1ea3n l\u00fd Modem WiFi &gt; \u0110\u1ed5i m\u1eadt kh\u1ea9u.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Nh\u1eadp m\u1eadt kh\u1ea9u m\u1edbi v\u00e0 x\u00e1c nh\u1eadn.<\/span><\/li>\n<\/ul>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-5.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-5-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-5-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-534282 webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-5.jpg\" alt=\"cach-doi-mat-khau-wifi-bang-dien-thoai-5\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-5.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-5-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-5-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<h4><b>c) L\u01b0u \u00fd khi \u0111\u1ed5i pass WiFi Viettel<\/b><\/h4>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">N\u00ean ch\u1ecdn m\u1eadt kh\u1ea9u tr\u00ean 8 k\u00fd t\u1ef1, k\u1ebft h\u1ee3p ch\u1eef hoa, th\u01b0\u1eddng, s\u1ed1, k\u00fd t\u1ef1 \u0111\u1eb7c bi\u1ec7t.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">N\u1ebfu kh\u00f4ng \u0111\u0103ng nh\u1eadp \u0111\u01b0\u1ee3c, h\u00e3y th\u1eed reset modem v\u00e0 \u0111\u0103ng nh\u1eadp b\u1eb1ng m\u1eadt kh\u1ea9u m\u1eb7c \u0111\u1ecbnh.<\/span><\/li>\n<\/ul>\n<h3><b>4.2. C\u00e1ch \u0111\u1ed5i m\u1eadt kh\u1ea9u WiFi VNPT b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i<\/b><\/h3>\n<h4><b>a) \u0110\u1ed5i qua tr\u00ecnh duy\u1ec7t web<\/b><\/h4>\n<ol>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">K\u1ebft n\u1ed1i \u0111i\u1ec7n tho\u1ea1i v\u1edbi WiFi VNPT c\u1ea7n \u0111\u1ed5i.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">M\u1edf tr\u00ecnh duy\u1ec7t, nh\u1eadp 192.168.1.1 ho\u1eb7c 192.168.100.1.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">\u0110\u0103ng nh\u1eadp t\u00e0i kho\u1ea3n (th\u01b0\u1eddng l\u00e0 admin\/admin ho\u1eb7c user\/user).<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">V\u00e0o m\u1ee5c Network Settings &gt; Wireless &gt; Security.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Thay \u0111\u1ed5i m\u1eadt kh\u1ea9u \u1edf tr\u01b0\u1eddng WPA Pre-Shared Key.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">L\u01b0u l\u1ea1i v\u00e0 kh\u1edfi \u0111\u1ed9ng l\u1ea1i modem n\u1ebfu c\u1ea7n.<\/span><\/li>\n<\/ol>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-6.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-6-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-6-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-534283 webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-6.jpg\" alt=\"cach-doi-mat-khau-wifi-bang-dien-thoai-6\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-6.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-6-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-6-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<h4><b>b) \u0110\u1ed5i pass WiFi VNPT b\u1eb1ng app My VNPT<\/b><\/h4>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">T\u1ea3i app My VNPT v\u00e0 \u0111\u0103ng nh\u1eadp b\u1eb1ng s\u1ed1 \u0111i\u1ec7n tho\u1ea1i ho\u1eb7c t\u00e0i kho\u1ea3n h\u1ee3p \u0111\u1ed3ng.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">V\u00e0o ph\u1ea7n \u201cQu\u1ea3n l\u00fd d\u1ecbch v\u1ee5 Internet\u201d &gt; ch\u1ecdn modem &gt; \u201c\u0110\u1ed5i m\u1eadt kh\u1ea9u WiFi\u201d.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Nh\u1eadp m\u1eadt kh\u1ea9u m\u1edbi, x\u00e1c nh\u1eadn v\u00e0 l\u01b0u l\u1ea1i.<\/span><\/li>\n<\/ul>\n<h3><b>4.3. C\u00e1ch \u0111\u1ed5i m\u1eadt kh\u1ea9u WiFi FPT b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i<\/b><\/h3>\n<h4><b>a) \u0110\u1ed5i qua tr\u00ecnh duy\u1ec7t web<\/b><\/h4>\n<ol>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">K\u1ebft n\u1ed1i \u0111i\u1ec7n tho\u1ea1i v\u1edbi WiFi FPT.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">M\u1edf tr\u00ecnh duy\u1ec7t, nh\u1eadp 192.168.1.1 ho\u1eb7c 192.168.0.1.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">\u0110\u0103ng nh\u1eadp user\/pass m\u1eb7c \u0111\u1ecbnh (xem tr\u00ean modem).<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Ch\u1ecdn Wireless Settings &gt; Wireless Security.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Nh\u1eadp m\u1eadt kh\u1ea9u m\u1edbi, l\u01b0u l\u1ea1i v\u00e0 kh\u1edfi \u0111\u1ed9ng l\u1ea1i modem n\u1ebfu \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u.<\/span><\/li>\n<\/ol>\n<h4><b>b) \u0110\u1ed5i m\u1eadt kh\u1ea9u FPT b\u1eb1ng app Hi FPT<\/b><\/h4>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">T\u1ea3i Hi FPT cho iOS\/Android.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">\u0110\u0103ng nh\u1eadp, ch\u1ecdn d\u1ecbch v\u1ee5 Internet, v\u00e0o ph\u1ea7n Qu\u1ea3n l\u00fd WiFi.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Ch\u1ecdn modem &gt; \u201c\u0110\u1ed5i m\u1eadt kh\u1ea9u\u201d. Nh\u1eadp m\u1eadt kh\u1ea9u m\u1edbi v\u00e0 x\u00e1c nh\u1eadn.<\/span><\/li>\n<\/ul>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-7.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-7-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-7-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-534284 webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-7.jpg\" alt=\"cach-doi-mat-khau-wifi-bang-dien-thoai-7\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-7.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-7-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-7-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<h2><b>5. H\u01b0\u1edbng d\u1eabn \u0111\u1ed5i m\u1eadt kh\u1ea9u WiFi theo lo\u1ea1i modem\/router ph\u1ed5 bi\u1ebfn<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Ngo\u00e0i theo nh\u00e0 m\u1ea1ng, b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 \u0111\u1ed5i m\u1eadt kh\u1ea9u WiFi b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i theo t\u1eebng d\u00f2ng modem\/router nh\u01b0 TP-Link, Tenda, D-Link, Technicolor, Totolink, v.v&#8230;<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Lo\u1ea1i modem\/router<\/b><\/td>\n<td><b>\u0110\u1ecba ch\u1ec9 IP \u0111\u0103ng nh\u1eadp ph\u1ed5 bi\u1ebfn<\/b><\/td>\n<td><b>V\u1ecb tr\u00ed \u0111\u1ed5i m\u1eadt kh\u1ea9u tr\u00ean giao di\u1ec7n<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">TP-Link<\/span><\/td>\n<td><span style=\"font-weight: 400;\">192.168.0.1 \/ 192.168.1.1<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Wireless &gt; Wireless Security<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Tenda<\/span><\/td>\n<td><span style=\"font-weight: 400;\">192.168.0.1<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Wireless Settings &gt; Wireless Security<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">D-Link<\/span><\/td>\n<td><span style=\"font-weight: 400;\">192.168.0.1 \/ 192.168.1.1<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Wireless Setup &gt; Wireless Security Mode<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Totolink<\/span><\/td>\n<td><span style=\"font-weight: 400;\">192.168.1.1<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Wireless &gt; Basic Settings \/ Security<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Technicolor<\/span><\/td>\n<td><span style=\"font-weight: 400;\">192.168.1.1 \/ 192.168.0.1<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Home Network &gt; Wireless<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><b>5.1. \u0110\u1ed5i m\u1eadt kh\u1ea9u WiFi TP-Link b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i<\/b><\/h3>\n<ol>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">K\u1ebft n\u1ed1i v\u1edbi WiFi TP-Link.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">V\u00e0o tr\u00ecnh duy\u1ec7t, nh\u1eadp 192.168.0.1 ho\u1eb7c 192.168.1.1.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">\u0110\u0103ng nh\u1eadp v\u1edbi user\/pass m\u1eb7c \u0111\u1ecbnh (admin\/admin).<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Ch\u1ecdn Wireless &gt; Wireless Security.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Nh\u1eadp m\u1eadt kh\u1ea9u m\u1edbi t\u1ea1i Wireless Password, l\u01b0u l\u1ea1i.<\/span><\/li>\n<\/ol>\n<h3><b>5.2. \u0110\u1ed5i m\u1eadt kh\u1ea9u WiFi Tenda, D-Link, Totolink, Technicolor<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">T\u01b0\u01a1ng t\u1ef1 TP-Link, b\u1ea1n ch\u1ec9 c\u1ea7n truy c\u1eadp \u0111\u1ecba ch\u1ec9 IP, \u0111\u0103ng nh\u1eadp v\u00e0 t\u00ecm m\u1ee5c Wireless Security, nh\u1eadp m\u1eadt kh\u1ea9u m\u1edbi r\u1ed3i l\u01b0u l\u1ea1i.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">N\u1ebfu g\u1eb7p kh\u00f3 kh\u0103n, h\u00e3y tra c\u1ee9u t\u00ean modem + \u201c\u0111\u1ed5i m\u1eadt kh\u1ea9u\u201d tr\u00ean Google ho\u1eb7c li\u00ean h\u1ec7 t\u1ed5ng \u0111\u00e0i nh\u00e0 m\u1ea1ng \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">L\u01b0u \u00fd: N\u1ebfu sau khi \u0111\u1ed5i m\u1eadt kh\u1ea9u, b\u1ea1n kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c WiFi, h\u00e3y &#8220;qu\u00ean m\u1ea1ng&#8221; tr\u00ean \u0111i\u1ec7n tho\u1ea1i r\u1ed3i k\u1ebft n\u1ed1i l\u1ea1i b\u1eb1ng m\u1eadt kh\u1ea9u m\u1edbi.<\/span><\/p>\n<h2><b>6. L\u01b0u \u00fd &amp; m\u1eb9o b\u1ea3o m\u1eadt khi \u0111\u1ed5i m\u1eadt kh\u1ea9u WiFi b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">\u0110\u1ed5i m\u1eadt kh\u1ea9u WiFi th\u01b0\u1eddng xuy\u00ean l\u00e0 c\u00e1ch \u0111\u01a1n gi\u1ea3n nh\u1ea5t \u0111\u1ec3 b\u1ea3o v\u1ec7 an to\u00e0n m\u1ea1ng gia \u0111\u00ecnh b\u1ea1n. Tuy nhi\u00ean, h\u00e3y ghi nh\u1edb m\u1ed9t s\u1ed1 l\u01b0u \u00fd sau \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o qu\u00e1 tr\u00ecnh \u0111\u1ed5i m\u1eadt kh\u1ea9u th\u00e0nh c\u00f4ng v\u00e0 an to\u00e0n:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><b>Ch\u1ecdn m\u1eadt kh\u1ea9u m\u1ea1nh: <\/b><span style=\"font-weight: 400;\">D\u00f9ng t\u1ed1i thi\u1ec3u 8 k\u00fd t\u1ef1, bao g\u1ed3m ch\u1eef hoa, th\u01b0\u1eddng, s\u1ed1 v\u00e0 k\u00fd t\u1ef1 \u0111\u1eb7c bi\u1ec7t (VD: Nha2024!@#).<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Kh\u00f4ng \u0111\u1eb7t m\u1eadt kh\u1ea9u d\u1ec5 \u0111o\u00e1n: <\/b><span style=\"font-weight: 400;\">Tr\u00e1nh d\u00f9ng ng\u00e0y sinh, s\u1ed1 \u0111i\u1ec7n tho\u1ea1i, t\u00ean d\u1ec5 nh\u1edb.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Thay \u0111\u1ed5i m\u1eadt kh\u1ea9u \u0111\u1ecbnh k\u1ef3: <\/b><span style=\"font-weight: 400;\">T\u1ed1t nh\u1ea5t 3-6 th\u00e1ng\/l\u1ea7n ho\u1eb7c ngay khi nghi ng\u1edd b\u1ecb l\u1ed9 m\u1eadt kh\u1ea9u.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Ghi ch\u00fa m\u1eadt kh\u1ea9u m\u1edbi: <\/b><span style=\"font-weight: 400;\">L\u01b0u l\u1ea1i \u1edf n\u01a1i an to\u00e0n, tr\u00e1nh qu\u00ean ho\u1eb7c \u0111\u1ec3 l\u1ed9 c\u00f4ng khai.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>\u0110\u1ed5i c\u1ea3 t\u00e0i kho\u1ea3n qu\u1ea3n tr\u1ecb modem: <\/b><span style=\"font-weight: 400;\">N\u1ebfu ch\u01b0a \u0111\u1ed5i, n\u00ean thay \u0111\u1ed5i lu\u00f4n m\u1eadt kh\u1ea9u \u0111\u0103ng nh\u1eadp modem \u0111\u1ec3 t\u0103ng b\u1ea3o m\u1eadt.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Lu\u00f4n c\u1eadp nh\u1eadt firmware modem: <\/b><span style=\"font-weight: 400;\">Gi\u00fap thi\u1ebft b\u1ecb an to\u00e0n h\u01a1n tr\u01b0\u1edbc c\u00e1c l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Kh\u00f4ng chia s\u1ebb m\u1eadt kh\u1ea9u WiFi b\u1eeba b\u00e3i: <\/b><span style=\"font-weight: 400;\">N\u1ebfu cho kh\u00e1ch d\u00f9ng, h\u00e3y \u0111\u1ed5i l\u1ea1i m\u1eadt kh\u1ea9u sau \u0111\u00f3.<\/span><\/li>\n<\/ul>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-8.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-8-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-8-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-534285 webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-8.jpg\" alt=\"cach-doi-mat-khau-wifi-bang-dien-thoai-8\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-8.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-8-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/04\/cach-doi-mat-khau-wifi-bang-dien-thoai-8-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<p><span style=\"font-weight: 400;\">H\u00e3y \u0111\u1ed5i m\u1eadt kh\u1ea9u WiFi ngay h\u00f4m nay \u0111\u1ec3 b\u1ea3o v\u1ec7 k\u1ebft n\u1ed1i c\u1ee7a b\u1ea1n!<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Tham kh\u1ea3o th\u00eam: <a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/wifi-la-gi\/\">WiFi l\u00e0 g\u00ec? Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng, c\u00e1c chu\u1ea9n WiFi v\u00e0 nh\u1eefng \u0111i\u1ec1u c\u1ea7n bi\u1ebft<\/a><\/span><\/p>\n<h2><b>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 c\u00e1ch \u0111\u1ed5i m\u1eadt kh\u1ea9u WiFi b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i<\/b><\/h2>\n<h3><b>1. \u0110\u1ed5i m\u1eadt kh\u1ea9u WiFi b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i c\u00f3 an to\u00e0n kh\u00f4ng?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">C\u00f3. Vi\u1ec7c \u0111\u1ed5i m\u1eadt kh\u1ea9u WiFi b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i ho\u00e0n to\u00e0n an to\u00e0n n\u1ebfu b\u1ea1n \u0111\u0103ng nh\u1eadp \u0111\u00fang \u0111\u1ecba ch\u1ec9 modem v\u00e0 t\u00e0i kho\u1ea3n qu\u1ea3n tr\u1ecb. B\u1ea1n n\u00ean \u0111\u1ed5i c\u1ea3 m\u1eadt kh\u1ea9u qu\u1ea3n tr\u1ecb modem v\u00e0 WiFi \u0111\u1ec3 t\u0103ng b\u1ea3o m\u1eadt, tr\u00e1nh \u0111\u1ec3 l\u1ed9 th\u00f4ng tin.<\/span><\/p>\n<h3><b>2. N\u1ebfu qu\u00ean m\u1eadt kh\u1ea9u qu\u1ea3n tr\u1ecb modem th\u00ec l\u00e0m sao \u0111\u1ed5i pass WiFi?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Tr\u01b0\u1eddng h\u1ee3p n\u00e0y, b\u1ea1n c\u1ea7n reset l\u1ea1i modem b\u1eb1ng n\u00fat c\u1ee9ng tr\u00ean thi\u1ebft b\u1ecb (th\u01b0\u1eddng c\u00f3 l\u1ed7 nh\u1ecf ghi \u201cRESET\u201d). Sau khi reset, \u0111\u0103ng nh\u1eadp l\u1ea1i b\u1eb1ng t\u00e0i kho\u1ea3n m\u1eb7c \u0111\u1ecbnh (admin\/admin) r\u1ed3i \u0111\u1ed5i m\u1eadt kh\u1ea9u WiFi m\u1edbi.<\/span><\/p>\n<h3><b>3. \u0110\u1ed5i m\u1eadt kh\u1ea9u WiFi b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i iPhone v\u00e0 Android c\u00f3 kh\u00e1c nhau kh\u00f4ng?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">C\u00e1ch thao t\u00e1c ho\u00e0n to\u00e0n gi\u1ed1ng nhau, d\u00f9 b\u1ea1n d\u00f9ng iPhone hay Android. Ch\u1ec9 c\u1ea7n \u0111i\u1ec7n tho\u1ea1i c\u00f3 tr\u00ecnh duy\u1ec7t web (Safari, Chrome&#8230;) ho\u1eb7c app qu\u1ea3n l\u00fd c\u1ee7a nh\u00e0 m\u1ea1ng l\u00e0 \u0111\u01b0\u1ee3c.<\/span><\/p>\n<h3><b>4. Sau khi \u0111\u1ed5i m\u1eadt kh\u1ea9u, thi\u1ebft b\u1ecb c\u0169 c\u00f3 t\u1ef1 k\u1ebft n\u1ed1i l\u1ea1i kh\u00f4ng?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Kh\u00f4ng. Sau khi \u0111\u1ed5i m\u1eadt kh\u1ea9u, t\u1ea5t c\u1ea3 thi\u1ebft b\u1ecb t\u1eebng k\u1ebft n\u1ed1i s\u1ebd b\u1ecb ng\u1eaft. B\u1ea1n c\u1ea7n nh\u1eadp l\u1ea1i m\u1eadt kh\u1ea9u m\u1edbi \u0111\u1ec3 truy c\u1eadp WiFi.<\/span><\/p>\n<h3><b>5. C\u00f3 th\u1ec3 \u0111\u1ed5i t\u00ean WiFi c\u00f9ng l\u00fac v\u1edbi \u0111\u1ed5i m\u1eadt kh\u1ea9u tr\u00ean \u0111i\u1ec7n tho\u1ea1i kh\u00f4ng?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Ho\u00e0n to\u00e0n c\u00f3 th\u1ec3! Trong giao di\u1ec7n \u0111\u1ed5i m\u1eadt kh\u1ea9u, b\u1ea1n c\u0169ng s\u1ebd th\u1ea5y tr\u01b0\u1eddng SSID (t\u00ean WiFi). Ch\u1ec9 c\u1ea7n \u0111\u1ed5i c\u1ea3 t\u00ean v\u00e0 m\u1eadt kh\u1ea9u r\u1ed3i l\u01b0u l\u1ea1i l\u00e0 xong.<\/span><\/p>\n<h3><b>6. Sau khi \u0111\u1ed5i m\u1eadt kh\u1ea9u WiFi m\u00e0 kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c Internet th\u00ec l\u00e0m g\u00ec?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">H\u00e3y th\u1eed kh\u1edfi \u0111\u1ed9ng l\u1ea1i modem, qu\u00ean m\u1ea1ng WiFi tr\u00ean \u0111i\u1ec7n tho\u1ea1i r\u1ed3i k\u1ebft n\u1ed1i l\u1ea1i b\u1eb1ng m\u1eadt kh\u1ea9u m\u1edbi. N\u1ebfu v\u1eabn kh\u00f4ng \u0111\u01b0\u1ee3c, ki\u1ec3m tra l\u1ea1i xem b\u1ea1n \u0111\u00e3 l\u01b0u \u0111\u00fang m\u1eadt kh\u1ea9u ch\u01b0a ho\u1eb7c li\u00ean h\u1ec7 t\u1ed5ng \u0111\u00e0i nh\u00e0 m\u1ea1ng h\u1ed7 tr\u1ee3.<\/span><\/p>\n<h3><b>7. C\u00f3 c\u1ea7n ph\u1ea3i c\u00e0i app m\u1edbi \u0111\u1ed5i \u0111\u01b0\u1ee3c m\u1eadt kh\u1ea9u WiFi kh\u00f4ng?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Kh\u00f4ng nh\u1ea5t thi\u1ebft! B\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ed5i m\u1eadt kh\u1ea9u qua tr\u00ecnh duy\u1ec7t web tr\u00ean \u0111i\u1ec7n tho\u1ea1i m\u00e0 kh\u00f4ng c\u1ea7n c\u00e0i th\u00eam app. Tuy nhi\u00ean, app c\u1ee7a nh\u00e0 m\u1ea1ng gi\u00fap thao t\u00e1c nhanh v\u00e0 tr\u1ef1c quan h\u01a1n.<\/span><\/p>\n<h3><b>8. M\u1ed9t s\u1ed1 \u0111\u1ecba ch\u1ec9 IP ph\u1ed5 bi\u1ebfn \u0111\u1ec3 \u0111\u0103ng nh\u1eadp modem l\u00e0 g\u00ec?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">C\u00e1c \u0111\u1ecba ch\u1ec9 IP ph\u1ed5 bi\u1ebfn g\u1ed3m: 192.168.1.1, 192.168.0.1, 192.168.l.l, 192.168.ll. B\u1ea1n h\u00e3y ki\u1ec3m tra \u1edf \u0111\u00e1y modem ho\u1eb7c s\u00e1ch h\u01b0\u1edbng d\u1eabn \u0111\u1ec3 bi\u1ebft ch\u00ednh x\u00e1c.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Xem th\u00eam: <a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/repeater\/\">WiFi Repeater l\u00e0 g\u00ec? C\u00f3 n\u00ean s\u1eed d\u1ee5ng kh\u00f4ng? C\u00e1ch l\u1eafp \u0111\u1eb7t, t\u1ed1i \u01b0u Repeater<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0110\u1ed5i m\u1eadt kh\u1ea9u WiFi b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i l\u00e0 qu\u00e1 tr\u00ecnh thay \u0111\u1ed5i m\u00e3 truy c\u1eadp m\u1ea1ng WiFi tr\u1ef1c ti\u1ebfp tr\u00ean thi\u1ebft b\u1ecb di \u0111\u1ed9ng m\u00e0 kh\u00f4ng c\u1ea7n d\u00f9ng \u0111\u1ebfn m\u00e1y t\u00ednh. Vi\u1ec7c n\u00e0y gi\u00fap b\u1ea1n b\u1ea3o v\u1ec7 m\u1ea1ng kh\u1ecfi truy c\u1eadp tr\u00e1i ph\u00e9p v\u00e0 d\u1ec5 d\u00e0ng th\u1ef1c hi\u1ec7n m\u1ecdi l\u00fac, m\u1ecdi n\u01a1i. Th\u00f4ng tin nhanh: [&hellip;]<\/p>\n","protected":false},"author":91,"featured_media":534277,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16,8,17,412],"tags":[],"class_list":["post-534275","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-thu-thuat","category-thu-thuat-android","category-thu-thuat-ios","category-thu-thuat-may-tinh"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.2 (Yoast SEO v24.2) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>C\u00e1ch \u0111\u1ed5i m\u1eadt kh\u1ea9u WiFi b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i cho thi\u1ebft b\u1ecb v\u00e0 nh\u00e0 m\u1ea1ng<\/title>\n<meta name=\"description\" content=\"C\u00e1ch \u0111\u1ed5i m\u1eadt kh\u1ea9u WiFi b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i l\u00e0 gi\u1ea3i ph\u00e1p b\u1ea3o m\u1eadt \u0111\u01a1n gi\u1ea3n, nhanh ch\u00f3ng m\u00e0 ai 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