{"id":555944,"date":"2026-06-17T10:32:44","date_gmt":"2026-06-17T03:32:44","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=555944"},"modified":"2026-06-17T10:32:44","modified_gmt":"2026-06-17T03:32:44","slug":"cach-mo-iphone-quen-mat-khau-man-hinh","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/cach-mo-iphone-quen-mat-khau-man-hinh\/","title":{"rendered":"C\u00e1ch M\u1edf iPhone Qu\u00ean M\u1eadt Kh\u1ea9u M\u00e0n H\u00ecnh An To\u00e0n (3 C\u00e1ch Ch\u00ednh Th\u1ee9c)"},"content":{"rendered":"

B\u00e0i vi\u1ebft h\u01b0\u1edbng d\u1eabn chi ti\u1ebft <\/span>c\u00e1ch m\u1edf iPhone qu\u00ean m\u1eadt kh\u1ea9u m\u00e0n h\u00ecnh<\/b> an to\u00e0n b\u1eb1ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ch\u00ednh th\u1ee9c c\u1ee7a Apple, c\u00f9ng l\u01b0u \u00fd quan tr\u1ecdng v\u1ec1 sao l\u01b0u d\u1eef li\u1ec7u v\u00e0 x\u00e1c th\u1ef1c t\u00e0i kho\u1ea3n Apple \u0111\u1ec3 tr\u00e1nh b\u1ecb kh\u00f3a m\u00e1y. Qu\u00ean m\u1eadt kh\u1ea9u m\u00e0n h\u00ecnh khi\u1ebfn iPhone b\u1ecb kh\u00f3a l\u00e0 t\u00ecnh hu\u1ed1ng nhi\u1ec1u ng\u01b0\u1eddi g\u1eb7p ph\u1ea3i, \u0111\u1eb7c bi\u1ec7t sau khi \u0111\u1ed5i m\u00e3 ho\u1eb7c nh\u1eadp sai nhi\u1ec1u l\u1ea7n d\u1eabn \u0111\u1ebfn th\u00f4ng b\u00e1o “iPhone kh\u00f4ng kh\u1ea3 d\u1ee5ng” (iPhone Unavailable) ho\u1eb7c “Kh\u00f3a b\u1ea3o m\u1eadt” (Security Lockout).\u00a0<\/span><\/p>\n

L\u01b0u \u00fd quan tr\u1ecdng: H\u1ea7u h\u1ebft c\u00e1ch m\u1edf kh\u00f3a khi qu\u00ean m\u1eadt kh\u1ea9u \u0111\u1ec1u ph\u1ea3i <\/span><\/i>x\u00f3a to\u00e0n b\u1ed9 d\u1eef li\u1ec7u<\/i><\/b> tr\u00ean iPhone (v\u00ec l\u00fd do b\u1ea3o m\u1eadt, Apple kh\u00f4ng cho m\u1edf kh\u00f3a m\u00e0 gi\u1eef nguy\u00ean d\u1eef li\u1ec7u). N\u1ebfu b\u1ea1n c\u00f3 b\u1ea3n sao l\u01b0u (iCloud ho\u1eb7c m\u00e1y t\u00ednh), b\u1ea1n c\u00f3 th\u1ec3 kh\u00f4i ph\u1ee5c l\u1ea1i sau. Sau khi x\u00f3a, iPhone s\u1ebd y\u00eau c\u1ea7u \u0111\u0103ng nh\u1eadp <\/span><\/i>Apple ID \u0111\u00e3 d\u00f9ng tr\u01b0\u1edbc \u0111\u00f3<\/i><\/b> (t\u00ednh n\u0103ng Kh\u00f3a k\u00edch ho\u1ea1t – Activation Lock) \u0111\u1ec3 ch\u1ed1ng tr\u1ed9m.<\/span><\/i><\/p>\n

C\u00e1ch 1: X\u00f3a iPhone ngay tr\u00ean m\u00e0n h\u00ecnh kh\u00f3a (iOS m\u1edbi)<\/b><\/h2>\n

Tr\u00ean c\u00e1c phi\u00ean b\u1ea3n iOS tr\u00ean \u0111i\u1ec7n tho\u1ea1i iPhone<\/a> g\u1ea7n \u0111\u00e2y, khi nh\u1eadp sai m\u1eadt kh\u1ea9u nhi\u1ec1u l\u1ea7n, m\u00e0n h\u00ecnh s\u1ebd hi\u1ec7n t\u00f9y ch\u1ecdn <\/span>“X\u00f3a iPhone” (Erase iPhone)<\/b> \u1edf g\u00f3c d\u01b0\u1edbi:<\/span><\/p>\n

    \n
  1. Nh\u1eadp sai m\u1eadt kh\u1ea9u \u0111\u1ebfn khi hi\u1ec7n m\u00e0n h\u00ecnh “iPhone kh\u00f4ng kh\u1ea3 d\u1ee5ng” ho\u1eb7c “Kh\u00f3a b\u1ea3o m\u1eadt”.<\/span><\/li>\n
  2. Nh\u1ea5n <\/span>“X\u00f3a iPhone”<\/b> \u1edf g\u00f3c.<\/span><\/li>\n
  3. Nh\u1ea5n x\u00e1c nh\u1eadn, sau \u0111\u00f3 nh\u1eadp <\/span>m\u1eadt kh\u1ea9u Apple ID<\/b> \u0111\u1ec3 \u0111\u0103ng xu\u1ea5t v\u00e0 b\u1eaft \u0111\u1ea7u x\u00f3a.<\/span><\/li>\n
  4. iPhone s\u1ebd t\u1ef1 x\u00f3a v\u00e0 kh\u1edfi \u0111\u1ed9ng l\u1ea1i nh\u01b0 m\u00e1y m\u1edbi; b\u1ea1n thi\u1ebft l\u1eadp l\u1ea1i v\u00e0 kh\u00f4i ph\u1ee5c t\u1eeb b\u1ea3n sao l\u01b0u.<\/span><\/li>\n<\/ol>\n

    \u0110i\u1ec1u ki\u1ec7n:<\/b> iPhone c\u1ea7n k\u1ebft n\u1ed1i Wi-Fi ho\u1eb7c d\u1eef li\u1ec7u di \u0111\u1ed9ng v\u00e0 b\u1ea1n ph\u1ea3i nh\u1edb m\u1eadt kh\u1ea9u Apple ID.<\/span><\/p>\n

    \"cach-mo-iphone-quen-mat-khau-man-hinh-1\"<\/p>\n

    C\u00e1ch 2: Kh\u00f4i ph\u1ee5c iPhone b\u1eb1ng m\u00e1y t\u00ednh (Finder\/iTunes) qua Ch\u1ebf \u0111\u1ed9 kh\u00f4i ph\u1ee5c<\/b><\/h2>\n

    N\u1ebfu b\u1ea1n kh\u00f4ng th\u1ec3 \u00e1p d\u1ee5ng \u0111\u01b0\u1ee3c c\u00e1ch m\u1edf iPhone khi qu\u00ean m\u1eadt kh\u1ea9u m\u00e0n h\u00ecnh theo c\u00e1c ph\u01b0\u01a1ng ph\u00e1p th\u00f4ng th\u01b0\u1eddng, th\u00ec m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 kh\u00e1c l\u00e0 \u0111\u01b0a thi\u1ebft b\u1ecb v\u00e0o Ch\u1ebf \u0111\u1ed9 kh\u00f4i ph\u1ee5c (Recovery Mode) v\u00e0 ti\u1ebfn h\u00e0nh kh\u00f4i ph\u1ee5c b\u1eb1ng m\u00e1y t\u00ednh. C\u00e1ch n\u00e0y s\u1ebd gi\u00fap \u0111\u01b0a iPhone v\u1ec1 tr\u1ea1ng th\u00e1i ban \u0111\u1ea7u th\u00f4ng qua iTunes ho\u1eb7c Finder, t\u1eeb \u0111\u00f3 x\u00f3a m\u1eadt kh\u1ea9u m\u00e0n h\u00ecnh \u0111ang b\u1ecb qu\u00ean.<\/p>\n

      \n
    1. K\u1ebft n\u1ed1i iPhone v\u1edbi m\u00e1y t\u00ednh (m\u00e1y Mac d\u00f9ng Finder, Windows d\u00f9ng iTunes\/Apple Devices).<\/span><\/li>\n
    2. \u0110\u01b0a iPhone v\u00e0o Recovery Mode (t\u1ed5 h\u1ee3p ph\u00edm t\u00f9y \u0111\u1eddi m\u00e1y: th\u01b0\u1eddng b\u1ea5m nhanh T\u0103ng \u00e2m l\u01b0\u1ee3ng, Gi\u1ea3m \u00e2m l\u01b0\u1ee3ng r\u1ed3i gi\u1eef n\u00fat Ngu\u1ed3n \u0111\u1ebfn khi hi\u1ec7n m\u00e0n h\u00ecnh k\u1ebft n\u1ed1i m\u00e1y t\u00ednh).<\/span><\/li>\n
    3. Tr\u00ean m\u00e1y t\u00ednh, ch\u1ecdn <\/span>“Kh\u00f4i ph\u1ee5c” (Restore)<\/b> khi \u0111\u01b0\u1ee3c h\u1ecfi (kh\u00f4ng ch\u1ecdn Update).<\/span><\/li>\n
    4. M\u00e1y t\u00ednh t\u1ea3i ph\u1ea7n m\u1ec1m v\u00e0 x\u00f3a s\u1ea1ch iPhone; sau \u0111\u00f3 b\u1ea1n thi\u1ebft l\u1eadp l\u1ea1i v\u00e0 kh\u00f4i ph\u1ee5c d\u1eef li\u1ec7u t\u1eeb b\u1ea3n sao l\u01b0u (n\u1ebfu c\u00f3).<\/span><\/li>\n<\/ol>\n

      C\u00e1ch 3: <\/b>C\u00e1ch m\u1edf iPhone qu\u00ean m\u1eadt kh\u1ea9u m\u00e0n h\u00ecnh b\u1eb1ng c\u00e1ch <\/b>X\u00f3a t\u1eeb xa qua iCloud (Find My)<\/b><\/h2>\n

      N\u1ebfu iPhone \u0111\u00e3 b\u1eadt t\u00ednh n\u0103ng T\u00ecm (Find My) v\u00e0 \u0111ang \u1edf tr\u1ea1ng th\u00e1i online, b\u1ea1n c\u00f3 th\u1ec3 ti\u1ebfn h\u00e0nh x\u00f3a thi\u1ebft b\u1ecb t\u1eeb xa th\u00f4ng qua iCloud \u0111\u1ec3 m\u1edf l\u1ea1i m\u00e1y khi qu\u00ean m\u1eadt kh\u1ea9u.<\/p>\n

        \n
      1. Truy c\u1eadp <\/span>iCloud.com<\/b> (ho\u1eb7c d\u00f9ng \u1ee9ng d\u1ee5ng T\u00ecm tr\u00ean thi\u1ebft b\u1ecb Apple kh\u00e1c), \u0111\u0103ng nh\u1eadp Apple ID.<\/span><\/li>\n
      2. V\u00e0o <\/span>T\u00ecm thi\u1ebft b\u1ecb (Find Devices)<\/b>, ch\u1ecdn chi\u1ebfc iPhone b\u1ecb kh\u00f3a.<\/span><\/li>\n
      3. Ch\u1ecdn <\/span>X\u00f3a iPhone (Erase iPhone)<\/b>.<\/span><\/li>\n
      4. Sau khi x\u00f3a, thi\u1ebft l\u1eadp l\u1ea1i v\u00e0 kh\u00f4i ph\u1ee5c t\u1eeb b\u1ea3n sao l\u01b0u; \u0111\u0103ng nh\u1eadp l\u1ea1i Apple ID \u0111\u1ec3 g\u1ee1 Activation Lock.<\/span><\/li>\n<\/ol>\n

        \"cach-mo-iphone-quen-mat-khau-man-hinh-2\"<\/p>\n

        L\u01b0u \u00fd v\u1ec1 Kh\u00f3a k\u00edch ho\u1ea1t (Activation Lock)<\/b><\/h2>\n

        Sau khi x\u00f3a d\u1eef li\u1ec7u, iPhone s\u1ebd y\u00eau c\u1ea7u \u0111\u0103ng nh\u1eadp l\u1ea1i \u0111\u00fang Apple ID \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u01b0\u1edbc \u0111\u00f3. \u0110\u00e2y l\u00e0 c\u01a1 ch\u1ebf b\u1ea3o m\u1eadt ch\u1ed1ng tr\u1ed9m c\u1ee7a Apple, gi\u00fap ng\u0103n ng\u01b0\u1eddi l\u1ea1 s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb khi kh\u00f4ng c\u00f3 quy\u1ec1n truy c\u1eadp. N\u1ebfu b\u1ea1n qu\u00ean Apple ID ho\u1eb7c m\u1eadt kh\u1ea9u, m\u00e1y c\u00f3 th\u1ec3 b\u1ecb kh\u00f3a v\u00e0 r\u1ea5t kh\u00f3 \u0111\u1ec3 k\u00edch ho\u1ea1t l\u1ea1i.<\/p>\n

        V\u00ec v\u1eady, b\u1ea1n c\u1ea7n \u0111\u1ea3m b\u1ea3o lu\u00f4n ghi nh\u1edb Apple ID v\u00e0 m\u1eadt kh\u1ea9u c\u1ee7a m\u00ecnh. Khi mua iPhone c\u0169, h\u00e3y ki\u1ec3m tra k\u1ef9 v\u00e0 y\u00eau c\u1ea7u ng\u01b0\u1eddi b\u00e1n \u0111\u0103ng xu\u1ea5t iCloud ho\u00e0n to\u00e0n tr\u01b0\u1edbc khi giao m\u00e1y, \u0111\u1ec3 tr\u00e1nh g\u1eb7p ph\u1ea3i t\u00ecnh tr\u1ea1ng d\u00ednh Activation Lock g\u00e2y kh\u00f4ng th\u1ec3 s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb.<\/p>\n

        L\u00e0m sao \u0111\u1ec3 kh\u00f4ng m\u1ea5t d\u1eef li\u1ec7u khi qu\u00ean m\u1eadt kh\u1ea9u?<\/b><\/h2>\n

        Th\u1ef1c t\u1ebf, n\u1ebfu c\u00e1c c\u00e1ch m\u1edf iPhone khi qu\u00ean m\u1eadt kh\u1ea9u m\u00e0n h\u00ecnh kh\u00f4ng \u00e1p d\u1ee5ng \u0111\u01b0\u1ee3c tr\u00ean thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n, th\u00ec g\u1ea7n nh\u01b0 b\u1eaft bu\u1ed9c ph\u1ea3i x\u00f3a to\u00e0n b\u1ed9 m\u00e1y \u0111\u1ec3 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng l\u1ea1i. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, d\u1eef li\u1ec7u ch\u1ec9 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c kh\u00f4i ph\u1ee5c n\u1ebfu tr\u01b0\u1edbc \u0111\u00f3 b\u1ea1n \u0111\u00e3 c\u00f3 s\u1eb5n b\u1ea3n sao l\u01b0u, ch\u1eb3ng h\u1ea1n nh\u01b0 iCloud Backup ho\u1eb7c \u0111\u00e3 sao l\u01b0u v\u00e0o m\u00e1y t\u00ednh.<\/p>\n

        Ch\u00ednh v\u00ec v\u1eady, vi\u1ec7c b\u1eadt sao l\u01b0u iCloud t\u1ef1 \u0111\u1ed9ng v\u00e0 th\u1ef1c hi\u1ec7n sao l\u01b0u \u0111\u1ecbnh k\u1ef3 l\u00e0 r\u1ea5t quan tr\u1ecdng. \u0110i\u1ec1u n\u00e0y gi\u00fap b\u1ea1n h\u1ea1n ch\u1ebf t\u1ed1i \u0111a r\u1ee7i ro m\u1ea5t d\u1eef li\u1ec7u khi g\u1eb7p s\u1ef1 c\u1ed1 qu\u00ean m\u1eadt kh\u1ea9u ho\u1eb7c c\u1ea7n kh\u00f4i ph\u1ee5c l\u1ea1i thi\u1ebft b\u1ecb.<\/p>\n

        \"cach-mo-iphone-quen-mat-khau-man-hinh-3\"<\/p>\n

        M\u1eb9o ph\u00f2ng tr\u00e1nh qu\u00ean m\u1eadt kh\u1ea9u iPhone<\/b><\/h2>\n