{"id":371960,"date":"2024-07-27T20:49:09","date_gmt":"2024-07-27T13:49:09","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=371960"},"modified":"2024-07-27T20:49:09","modified_gmt":"2024-07-27T13:49:09","slug":"bootloader","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/bootloader\/","title":{"rendered":"Bootloader l\u00e0 g\u00ec? C\u00e1ch ki\u1ec3m tra m\u00e1y \u0111\u00e3 m\u1edf kh\u00f3a Bootloader hay ch\u01b0a?"},"content":{"rendered":"

Hi\u1ec7n nay, s\u1ed1 l\u01b0\u1ee3ng ng\u01b0\u1eddi s\u1eed d\u1ee5ng \u0111i\u1ec7n tho\u1ea1i Android ng\u00e0y c\u00e0ng gia t\u0103ng \u0111\u00e1ng k\u1ec3. Nh\u01b0ng nhi\u1ec1u ng\u01b0\u1eddi trong s\u1ed1 \u0111\u00f3 ch\u1eafc h\u1eb3n v\u1eabn ch\u01b0a bi\u1ebft \u0111\u1ebfn thu\u1eadt ng\u1eef <\/span>Bootloader l\u00e0 g\u00ec?<\/b> Ph\u1ea7n m\u1ec1m n\u00e0y c\u00f3 m\u1ed9t nhi\u1ec7m v\u1ee5 r\u1ea5t quan tr\u1ecdng v\u00e0 n\u00f3 li\u00ean quan \u0111\u1ebfn qu\u00e1 tr\u00ecnh kh\u1edfi \u0111\u1ed9ng h\u1ec7 \u0111i\u1ec1u h\u00e0nh. V\u00e0 n\u1ebfu b\u1ea1n kh\u00f4ng hi\u1ec3u r\u00f5 v\u1ec1 n\u00f3 c\u0169ng nh\u01b0 can thi\u1ec7p sai c\u00e1ch th\u00ec s\u1ebd d\u1eabn \u0111\u1ebfn r\u1ea5t nhi\u1ec1u h\u1ec7 l\u1ee5y kh\u00f4ng mong mu\u1ed1n \u0111\u1ea5y nh\u00e9.<\/span><\/p>\n

Bootloader l\u00e0 g\u00ec?<\/b><\/h2>\n

\u0110\u00e2y l\u00e0 m\u1ed9t ph\u1ea7n m\u1ec1m quan tr\u1ecdng, n\u1eb1m trong firmware c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed nh\u01b0 m\u00e1y t\u00ednh, \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng, v\u00e0 nhi\u1ec1u thi\u1ebft b\u1ecb nh\u00fang kh\u00e1c. N\u00f3 ch\u1ecbu tr\u00e1ch nhi\u1ec7m cho vi\u1ec7c kh\u1edfi \u0111\u1ed9ng h\u1ec7 th\u1ed1ng, t\u1ea3i h\u1ec7 \u0111i\u1ec1u h\u00e0nh v\u00e0o b\u1ed9 nh\u1edb v\u00e0 th\u1ef1c hi\u1ec7n nh\u1eefng b\u01b0\u1edbc chu\u1ea9n b\u1ecb c\u1ea7n thi\u1ebft tr\u01b0\u1edbc khi h\u1ec7 \u0111i\u1ec1u h\u00e0nh c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng.<\/span><\/p>\n

\"bootloader-1\"<\/p>\n

Chi ti\u1ebft h\u01a1n th\u00ec ph\u1ea7n m\u1ec1m n\u00e0y \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t c\u1ea7u n\u1ed1i gi\u1eefa ph\u1ea7n c\u1ee9ng v\u00e0 h\u1ec7 \u0111i\u1ec1u h\u00e0nh. Khi b\u1ea1n b\u1eadt m\u1ed9t thi\u1ebft b\u1ecb, \u0111\u00e2y s\u1ebd l\u00e0 ph\u1ea7n m\u1ec1m \u0111\u1ea7u ti\u00ean ch\u1ea1y, tr\u01b0\u1edbc c\u1ea3 h\u1ec7 \u0111i\u1ec1u h\u00e0nh. N\u00f3 s\u1ebd ki\u1ec3m tra t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a h\u1ec7 th\u1ed1ng, x\u00e1c \u0111\u1ecbnh v\u00e0 thi\u1ebft l\u1eadp m\u00f4i tr\u01b0\u1eddng kh\u1edfi \u0111\u1ed9ng, sau \u0111\u00f3 t\u1ea3i v\u00e0 kh\u1edfi \u0111\u1ed9ng h\u1ec7 \u0111i\u1ec1u h\u00e0nh.<\/span><\/p>\n

H\u01a1n n\u1eefa, ph\u1ea7n m\u1ec1m kh\u00f4ng ch\u1ec9 \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c kh\u1edfi \u0111\u1ed9ng h\u1ec7 th\u1ed1ng m\u00e0 c\u00f2n trong vi\u1ec7c b\u1ea3o m\u1eadt. N\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh \u0111\u1ec3 ch\u1ec9 cho ph\u00e9p c\u00e1c h\u1ec7 \u0111i\u1ec1u h\u00e0nh ho\u1eb7c firmware \u0111\u00e3 \u0111\u01b0\u1ee3c k\u00fd s\u1ed1 kh\u1edfi \u0111\u1ed9ng, ng\u0103n ch\u1eb7n vi\u1ec7c ch\u1ea1y m\u00e3 \u0111\u1ed9c ho\u1eb7c ph\u1ea7n m\u1ec1m kh\u00f4ng x\u00e1c \u0111\u1ecbnh. \u0110\u00e2y l\u00e0 m\u1ed9t ph\u1ea7n quan tr\u1ecdng c\u1ee7a quy tr\u00ecnh kh\u1edfi \u0111\u1ed9ng b\u1ea3o m\u1eadt, gi\u00fap b\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb kh\u1ecfi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb b\u00ean ngo\u00e0i.<\/span><\/p>\n

Ph\u00e2n lo\u1ea1i Bootloader ph\u1ed5 bi\u1ebfn nh\u1ea5t hi\u1ec7n nay<\/b><\/h2>\n

Ph\u1ea7n m\u1ec1m n\u00e0y hi\u1ec7n nay \u0111ang \u0111\u01b0\u1ee3c ph\u00e2n chia th\u00e0nh r\u1ea5t nhi\u1ec1u lo\u1ea1i. D\u1ef1a tr\u00ean t\u1eebng d\u00f2ng thi\u1ebft b\u1ecb kh\u00e1c nhau m\u00e0 n\u00f3 s\u1ebd c\u1ea5u tr\u00fac ph\u1ea7n m\u1ec1m t\u01b0\u01a1ng th\u00edch. Nh\u1eb1m m\u1ee5c \u0111\u00edch gi\u00fap cho ng\u01b0\u1eddi d\u00f9ng hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 t\u1eebng ph\u00e2n lo\u1ea1i n\u00ean b\u00e0i vi\u1ebft n\u00e0y Ho\u00e0ng H\u00e0 Mobile s\u1ebd th\u1ed1ng k\u00ea r\u00f5 h\u01a1n cho b\u1ea1n nh\u00e9.<\/span><\/p>\n

BIOS (Basic Input\/Output System)<\/b><\/h3>\n

\u0110\u01b0\u1ee3c ph\u00e1t tri\u1ec3n t\u1eeb nh\u1eefng n\u0103m 1980, BIOS \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu c\u1ee7a m\u00e1y t\u00ednh c\u00e1 nh\u00e2n, \u0111\u1eb7c bi\u1ec7t l\u00e0 m\u00e1y t\u00ednh truy\u1ec1n th\u1ed1ng. N\u00f3 \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c k\u1ebft n\u1ed1i gi\u1eefa ph\u1ea7n c\u1ee9ng v\u00e0 h\u1ec7 \u0111i\u1ec1u h\u00e0nh. Hay n\u00f3i c\u00e1ch kh\u00e1c, \u0111\u00e2y l\u00e0 m\u1ed9t <\/span>Bootloader <\/b>c\u1ed5 \u0111i\u1ec3n v\u1edbi c\u00e1c \u0111\u1eb7c bi\u1ec7t l\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c b\u00e0i ki\u1ec3m tra POST (Power-On Self-Test) \u0111\u1ec3 ki\u1ec3m tra ph\u1ea7n c\u1ee9ng, h\u1ed7 tr\u1ee3 kh\u1edfi \u0111\u1ed9ng t\u1eeb nhi\u1ec1u thi\u1ebft b\u1ecb nh\u01b0 \u1ed5 c\u1ee9ng, \u1ed5 \u0111\u0129a CD\/DVD, USB v\u00e0 c\u00f3 giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng \u0111\u01a1n gi\u1ea3n.<\/span><\/p>\n

\"bootloader-2\"<\/p>\n

UEFI (Unified Extensible Firmware Interface)<\/b><\/h3>\n

UEFI \u0111\u01b0\u1ee3c xem l\u00e0 m\u1ed9t ti\u00eau chu\u1ea9n giao di\u1ec7n ph\u1ea7n m\u1ec1m m\u1edbi \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 thay th\u1ebf BIOS trong c\u00e1c h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh hi\u1ec7n \u0111\u1ea1i. Ch\u00ednh v\u00ec th\u1ebf, UEFI cung c\u1ea5p nhi\u1ec1u t\u00ednh n\u0103ng v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng h\u01a1n so v\u1edbi BIOS truy\u1ec1n th\u1ed1ng. T\u1eeb \u0111\u00f3 gi\u00fap c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t, b\u1ea3o m\u1eadt v\u00e0 t\u00ednh linh ho\u1ea1t c\u1ee7a h\u1ec7 th\u1ed1ng.\u00a0<\/span><\/p>\n

\"bootloader-3\"<\/p>\n

M\u1ed9t s\u1ed1 ch\u1ee9c n\u0103ng quan tr\u1ecdng c\u1ee7a UEFI l\u00e0 h\u1ed7 tr\u1ee3 nhi\u1ec1u h\u1ec7 \u0111i\u1ec1u h\u00e0nh kh\u00e1c nhau nh\u01b0 Linux, Windows, v\u00e0 macOS. B\u00ean c\u1ea1nh \u0111\u00f3, n\u00f3 c\u00f2n cung c\u1ea5p giao di\u1ec7n d\u00f2ng l\u1ec7nh m\u1ea1nh m\u1ebd cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng ch\u1ec9nh s\u1eeda c\u1ea5u h\u00ecnh kh\u1edfi \u0111\u1ed9ng. \u0110\u1ed3ng th\u1eddi, n\u00f3 c\u00f2n h\u1ed7 tr\u1ee3 c\u00e1c t\u00ednh n\u0103ng n\u00e2ng cao nh\u01b0 chain-loading v\u00e0 kh\u1edfi \u0111\u1ed9ng t\u1eeb m\u1ea1ng.<\/span><\/p>\n

Bootloader tr\u00ean thi\u1ebft b\u1ecb di \u0111\u1ed9ng<\/b><\/h3>\n

\u0110\u00e2y l\u00e0 ph\u1ea7n m\u1ec1m d\u00e0nh ri\u00eang cho \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng v\u00e0 m\u00e1y t\u00ednh b\u1ea3ng. Th\u01b0\u1eddng th\u00ec n\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng t\u00f9y ch\u1ec9nh b\u1edfi c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t kh\u00e1c nhau nh\u1eb1m t\u1ea1o \u0111i\u1ec1u ki\u1ec7n \u0111\u1ec3 t\u01b0\u01a1ng th\u00edch v\u1edbi s\u1ea3n ph\u1ea9m c\u1ee7a c\u00f4ng ty h\u1ecd. Chi ti\u1ebft h\u01a1n th\u00ec ph\u1ea7n m\u1ec1m n\u00e0y s\u1ebd \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf d\u00e0nh ri\u00eang cho Android ho\u1eb7c iOS.<\/span><\/p>\n

\"bootloader-4\"<\/p>\n

\u0110\u1ed3ng th\u1eddi, n\u00f3 c\u00f3 kh\u1ea3 n\u0103ng cung c\u1ea5p c\u00e1c t\u00ednh n\u0103ng b\u1ea3o m\u1eadt nh\u01b0 kh\u1edfi \u0111\u1ed9ng b\u1ea3o m\u1eadt \u0111\u1ec3 ng\u0103n ch\u1eb7n ph\u1ea7n m\u1ec1m kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00e9p. \u0110\u1eb7c bi\u1ec7t, v\u00ec t\u00ednh an to\u00e0n n\u00ean ph\u1ea7n m\u1ec1m th\u01b0\u1eddng s\u1ebd b\u1ecb kh\u00f3a b\u1edfi nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ec3 ng\u0103n ch\u1eb7n ng\u01b0\u1eddi d\u00f9ng thay \u0111\u1ed5i h\u1ec7 \u0111i\u1ec1u h\u00e0nh ho\u1eb7c c\u00e0i \u0111\u1eb7t ph\u1ea7n m\u1ec1m t\u00f9y ch\u1ec9nh.<\/span><\/p>\n

Unlock Bootloader l\u00e0 g\u00ec?<\/b><\/h2>\n

\u0110\u00e2y l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp v\u00e0o h\u1ec7 th\u1ed1ng g\u1ed1c c\u1ee7a thi\u1ebft b\u1ecb Android. Theo \u0111\u00f3, m\u1eb7c \u0111\u1ecbnh h\u1ea7u h\u1ebft c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb Android \u0111\u1ec1u kh\u00f3a ph\u1ea7n m\u1ec1m kh\u1edfi \u0111\u1ed9ng \u0111\u1ec3 b\u1ea3o v\u1ec7 ng\u01b0\u1eddi d\u00f9ng kh\u1ecfi vi\u1ec7c c\u00e0i \u0111\u1eb7t ph\u1ea7n m\u1ec1m kh\u00f4ng an to\u00e0n ho\u1eb7c kh\u00f4ng \u0111\u01b0\u1ee3c ki\u1ec3m ch\u1ee9ng. Nh\u01b0ng khi b\u1ea1n mu\u1ed1n t\u00f9y ch\u1ec9nh thi\u1ebft b\u1ecb Android c\u1ee7a m\u00ecnh, nh\u01b0 c\u00e0i \u0111\u1eb7t ROM t\u00f9y ch\u1ec9nh ho\u1eb7c thay \u0111\u1ed5i kernel, b\u1ea1n c\u1ea7n ph\u1ea3i m\u1edf kh\u00f3a ph\u1ea7n m\u1ec1m n\u00e0y.\u00a0<\/span><\/p>\n

R\u1ee7i ro c\u1ee7a vi\u1ec7c m\u1edf kh\u00f3a Bootloader<\/b><\/h2>\n

B\u00ean c\u1ea1nh vi\u1ec7c mang \u0111\u1ebfn m\u1ed9t s\u1ed1 l\u1ee3i \u00edch nh\u1ea5t \u0111\u1ecbnh cho nh\u1eefng ng\u01b0\u1eddi d\u00f9ng \u0111\u1eb7c bi\u1ec7t. Vi\u1ec7c m\u1edf kh\u00f3a ph\u1ea7n m\u1ec1m kh\u1edfi \u0111\u1ed9ng c\u1ee7a thi\u1ebft b\u1ecb mang \u0111\u1ebfn r\u1ea5t nhi\u1ec1u r\u1ee7i ro m\u00e0 b\u1ea1n n\u00ean bi\u1ebft \u0111\u1ebfn. Nh\u1eefng r\u1ee7i ro n\u00e0y s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn tr\u1ea3i nghi\u1ec7m s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb, c\u0169ng nh\u01b0 n\u1eb7ng h\u01a1n l\u00e0 g\u00e2y h\u01b0 h\u1ecdng cho thi\u1ebft b\u1ecb \u0111\u1ea5y nh\u00e9. Do \u0111\u00f3, b\u1ea1n c\u1ea7n ph\u1ea3i \u0111\u1ecdc qua nh\u1eefng th\u00f4ng tin quan tr\u1ecdng n\u00e0y tr\u01b0\u1edbc khi quy\u1ebft \u0111\u1ecbnh m\u1edf kh\u00f3a ph\u1ea7n m\u1ec1m.<\/span><\/p>\n

M\u1ea5t b\u1ea3o h\u00e0nh<\/b><\/h3>\n

Khi b\u1ea1n mua m\u1ed9t thi\u1ebft b\u1ecb Android t\u1eeb nh\u00e0 s\u1ea3n xu\u1ea5t, thi\u1ebft b\u1ecb \u0111\u00f3 s\u1ebd \u0111i k\u00e8m v\u1edbi m\u1ed9t b\u1ea3o h\u00e0nh gi\u1edbi h\u1ea1n. B\u1ea3o h\u00e0nh n\u00e0y b\u1ea3o v\u1ec7 ng\u01b0\u1eddi d\u00f9ng tr\u01b0\u1edbc c\u00e1c l\u1ed7i ph\u1ea7n c\u1ee9ng v\u00e0 ph\u1ea7n m\u1ec1m trong m\u1ed9t kho\u1ea3ng th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh, th\u00f4ng th\u01b0\u1eddng l\u00e0 m\u1ed9t ho\u1eb7c hai n\u0103m. Nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ea3m b\u1ea3o r\u1eb1ng thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n s\u1ebd ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang nh\u01b0 m\u00f4 t\u1ea3 v\u00e0 s\u1ebd s\u1eeda ch\u1eefa ho\u1eb7c thay th\u1ebf n\u1ebfu c\u00f3 b\u1ea5t k\u1ef3 s\u1ef1 c\u1ed1 n\u00e0o x\u1ea3y ra trong kho\u1ea3ng th\u1eddi gian b\u1ea3o h\u00e0nh.<\/span><\/p>\n

\"bootloader-5\"<\/p>\n

Tuy nhi\u00ean, khi b\u1ea1n m\u1edf kh\u00f3a <\/span>Bootloader<\/b>, b\u1ea1n \u0111ang thay \u0111\u1ed5i c\u1ea5u tr\u00fac g\u1ed1c c\u1ee7a h\u1ec7 th\u1ed1ng, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn vi\u1ec7c c\u00e0i \u0111\u1eb7t c\u00e1c ph\u1ea7n m\u1ec1m ho\u1eb7c tinh ch\u1ec9nh h\u1ec7 th\u1ed1ng kh\u00f4ng \u0111\u01b0\u1ee3c ki\u1ec3m ch\u1ee9ng b\u1edfi nh\u00e0 s\u1ea3n xu\u1ea5t. Vi\u1ec7c n\u00e0y l\u00e0m t\u0103ng nguy c\u01a1 g\u00e2y h\u1ea1i \u0111\u1ebfn ph\u1ea7n c\u1ee9ng ho\u1eb7c ph\u1ea7n m\u1ec1m c\u1ee7a thi\u1ebft b\u1ecb. V\u00ec l\u00fd do n\u00e0y, h\u1ea7u h\u1ebft c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ec1u c\u00f3 ch\u00ednh s\u00e1ch kh\u00f4ng b\u1ea3o h\u00e0nh cho c\u00e1c thi\u1ebft b\u1ecb \u0111\u00e3 m\u1edf kh\u00f3a.\u00a0<\/span><\/p>\n

K\u00e9o theo \u0111\u00f3, n\u1ebfu nh\u01b0 thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n g\u1eb7p s\u1ef1 c\u1ed1 v\u00e0 kh\u00f4ng c\u00f2n trong di\u1ec7n b\u1ea3o h\u00e0nh, b\u1ea1n s\u1ebd ph\u1ea3i t\u1ef1 ch\u1ecbu chi ph\u00ed s\u1eeda ch\u1eefa. Nh\u01b0 th\u1ebf s\u1ebd r\u1ea5t t\u1ed1n k\u00e9m, \u0111\u1eb7c bi\u1ec7t n\u1ebfu c\u1ea7n thay th\u1ebf c\u00e1c b\u1ed9 ph\u1eadn ph\u1ea7n c\u1ee9ng quan tr\u1ecdng nh\u01b0 m\u00e0n h\u00ecnh, bo m\u1ea1ch ch\u1ee7 ho\u1eb7c pin. \u0110\u00e3 v\u1eady, m\u1ed9t thi\u1ebft b\u1ecb kh\u00f4ng c\u00f2n b\u1ea3o h\u00e0nh s\u1ebd m\u1ea5t gi\u00e1 tr\u1ecb khi b\u1ea1n mu\u1ed1n b\u00e1n l\u1ea1i. Ng\u01b0\u1eddi mua th\u01b0\u1eddng mu\u1ed1n mua c\u00e1c thi\u1ebft b\u1ecb c\u00f2n trong b\u1ea3o h\u00e0nh \u0111\u1ec3 y\u00ean t\u00e2m h\u01a1n v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 \u0111\u1ed9 b\u1ec1n.<\/span><\/p>\n

M\u1ea5t d\u1eef li\u1ec7u<\/b><\/h3>\n

Vi\u1ec7c m\u1edf kh\u00f3a m\u1ed9t ph\u1ea7n m\u1ec1m \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 nghi\u00eam ng\u1eb7t t\u1eeb nh\u00e0 s\u1ea3n xu\u1ea5t c\u0169ng \u0111\u1ed3ng ngh\u0129a l\u00e0 b\u1ea1n \u0111ang can thi\u1ec7p v\u00e0o h\u1ec7 th\u1ed1ng b\u1ea3o m\u1eadt c\u1ee7a thi\u1ebft b\u1ecb. Nh\u01b0 th\u1ebf s\u1ebd \u0111\u00f2i h\u1ecfi thi\u1ebft b\u1ecb ph\u1ea3i kh\u00f4i ph\u1ee5c v\u1ec1 tr\u1ea1ng th\u00e1i g\u1ed1c \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng kh\u00f4ng c\u00f3 ph\u1ea7n m\u1ec1m ho\u1eb7c c\u00e0i \u0111\u1eb7t n\u00e0o c\u00f3 th\u1ec3 g\u00e2y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn qu\u00e1 tr\u00ecnh m\u1edf kh\u00f3a. H\u1ea7u h\u1ebft c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb Android \u0111\u1ec1u t\u00edch h\u1ee3p m\u1ed9t c\u01a1 ch\u1ebf b\u1ea3o m\u1eadt khi\u1ebfn thi\u1ebft b\u1ecb x\u00f3a s\u1ea1ch to\u00e0n b\u1ed9 d\u1eef li\u1ec7u khi m\u1edf kh\u00f3a <\/span>Bootloader <\/b>nh\u1eb1m b\u1ea3o v\u1ec7 th\u00f4ng tin c\u00e1 nh\u00e2n c\u1ee7a ng\u01b0\u1eddi d\u00f9ng kh\u1ecfi b\u1ecb truy c\u1eadp tr\u00e1i ph\u00e9p.<\/span><\/p>\n

\"bootloader-6\"<\/p>\n

Qu\u00e1 tr\u00ecnh n\u00e0y bao g\u1ed3m vi\u1ec7c x\u00f3a t\u1ea5t c\u1ea3 c\u00e1c t\u1eadp tin, \u1ee9ng d\u1ee5ng, t\u00e0i li\u1ec7u, \u1ea3nh, video v\u00e0 c\u00e0i \u0111\u1eb7t c\u00e1 nh\u00e2n tr\u00ean thi\u1ebft b\u1ecb. Do \u0111\u00f3, ng\u01b0\u1eddi d\u00f9ng c\u1ea7n ph\u1ea3i chu\u1ea9n b\u1ecb k\u1ef9 c\u00e0ng v\u00e0 sao l\u01b0u to\u00e0n b\u1ed9 d\u1eef li\u1ec7u quan tr\u1ecdng tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh m\u1edf kh\u00f3a ph\u1ea7n m\u1ec1m nh\u00e9.<\/span><\/p>\n

Ch\u01b0a k\u1ec3 \u0111\u1ebfn, m\u1edf kh\u00f3a ph\u1ea7n m\u1ec1m s\u1ebd x\u00f3a to\u00e0n b\u1ed9 c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00e3 c\u00e0i \u0111\u1eb7t c\u00f9ng v\u1edbi c\u00e1c thi\u1ebft l\u1eadp c\u00e1 nh\u00e2n. \u0110\u1ed3ng ngh\u0129a r\u1eb1ng v\u1edbi vi\u1ec7c b\u1ea1n s\u1ebd ph\u1ea3i m\u1ea5t th\u1eddi gian \u0111\u1ec3 c\u00e0i \u0111\u1eb7t l\u1ea1i v\u00e0 c\u1ea5u h\u00ecnh c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 ban \u0111\u1ea7u.<\/span><\/p>\n

Nhi\u1ec5m malware<\/b><\/h3>\n

M\u1eb7c d\u00f9 khi m\u1edf kh\u00f3a ph\u1ea7n m\u1ec1m th\u00ec b\u1ea1n s\u1ebd d\u1ec5 d\u00e0ng c\u00e0i \u0111\u1eb7t nh\u1eefng ph\u1ea7n m\u1ec1m kh\u00f4ng r\u00f5 ngu\u1ed3n g\u1ed1c v\u00e0 ti\u1ec1m \u1ea9n nguy c\u01a1 ch\u1ee9a malware. C\u00e1c ph\u1ea7n m\u1ec1m n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ng\u1ee5y trang d\u01b0\u1edbi d\u1ea1ng c\u00e1c \u1ee9ng d\u1ee5ng ho\u1eb7c ROM t\u00f9y ch\u1ec9nh h\u1ea5p d\u1eabn nh\u01b0ng l\u1ea1i ch\u1ee9a m\u00e3 \u0111\u1ed9c c\u00f3 kh\u1ea3 n\u0103ng x\u00e2m nh\u1eadp v\u00e0 ki\u1ec3m so\u00e1t thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n.\u00a0<\/span><\/p>\n

\"bootloader-13\"<\/p>\n

Ch\u00ednh v\u00ec th\u1ebf, b\u1ea1n \u0111\u00e3 v\u00f4 t\u00ecnh \u0111\u1ec3 cho Malware c\u00f3 th\u1ec3 thu th\u1eadp v\u00e0 g\u1eedi v\u1ec1 m\u00e1y ch\u1ee7 c\u1ee7a k\u1ebb t\u1ea5n c\u00f4ng c\u00e1c th\u00f4ng tin nh\u1ea1y c\u1ea3m c\u1ee7a b\u1ea1n. Bao g\u1ed3m c\u1ea3 m\u1eadt kh\u1ea9u, th\u00f4ng tin t\u00e0i kho\u1ea3n ng\u00e2n h\u00e0ng, tin nh\u1eafn v\u00e0 danh b\u1ea1. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn c\u00e1c h\u1eadu qu\u1ea3 nghi\u00eam tr\u1ecdng nh\u01b0 m\u1ea5t ti\u1ec1n trong t\u00e0i kho\u1ea3n ng\u00e2n h\u00e0ng ho\u1eb7c b\u1ecb \u0111\u00e1nh c\u1eafp danh t\u00ednh.<\/span><\/p>\n

H\u01a1n n\u1eefa, Malware th\u01b0\u1eddng ch\u1ea1y ng\u1ea7m trong h\u1ec7 th\u1ed1ng v\u00e0 s\u1eed d\u1ee5ng t\u00e0i nguy\u00ean c\u1ee7a thi\u1ebft b\u1ecb, l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t v\u00e0 g\u00e2y hao pin nhanh ch\u00f3ng. Nh\u01b0 th\u1ebf s\u1ebd g\u00e2y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng v\u00e0 c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng ph\u1ea7n c\u1ee9ng trong d\u00e0i h\u1ea1n.<\/span><\/p>\n

H\u01b0\u1edbng d\u1eabn c\u00e1ch ki\u1ec3m tra m\u00e1y \u0111\u00e3 m\u1edf kh\u00f3a Bootloader hay ch\u01b0a?<\/b><\/h2>\n

V\u1edbi h\u01b0\u1edbng d\u1eabn b\u00ean d\u01b0\u1edbi \u0111\u00e2y, ch\u00fang ta s\u1ebd t\u1eadn d\u1ee5ng b\u1ed9 c\u00f4ng c\u1ee5 ADB tr\u00ean m\u00e1y t\u00ednh. Theo \u0111\u00f3, ADB s\u1ebd gi\u00fap b\u1ea1n truy c\u1eadp nhanh ch\u00f3ng v\u00e0o \u0111i\u1ec3m \u0111\u1ea7u v\u00e0 cu\u1ed1i c\u1ee7a thi\u1ebft b\u1ecb. N\u1ebfu mu\u1ed1n thay \u0111\u1ed5i, ch\u1ec9nh s\u1eeda hay l\u00e0m vi\u1ec7c li\u00ean quan \u0111\u1ebfn c\u00e1c t\u00e1c v\u1ee5 c\u1ee7a h\u1ec7 \u0111i\u1ec1u h\u00e0nh thi\u1ebft b\u1ecb th\u00ec n\u00ean bi\u1ebft \u0111\u1ebfn c\u00f4ng c\u1ee5 n\u00e0y.<\/span><\/p>\n

B\u01b0\u1edbc 1: \u0110\u1ea7u ti\u00ean, b\u1ea1n s\u1ebd truy c\u1eadp v\u00e0o \u0111\u01b0\u1eddng link <\/span>https:\/\/minimal-adb-and-fastboot.software.informer.com<\/b> v\u00e0 nh\u1ea5n ch\u1ecdn t\u1ea3i v\u1ec1 \u1ee9ng d\u1ee5ng.<\/span><\/p>\n

\"bootloader-7\"<\/p>\n

B\u01b0\u1edbc 2: Ti\u1ebfp \u0111\u1ebfn, b\u1ea1n s\u1ebd \u0111\u01b0a thi\u1ebft b\u1ecb Android c\u1ee7a m\u00ecnh v\u1ec1\u00a0 tr\u1ea1ng th\u00e1i \u201cRecovery mode\u201d sau \u0111\u00f3 c\u1eafm n\u00f3 v\u00e0o m\u00e1y t\u00ednh.<\/span><\/p>\n

\"bootloader-8\"<\/p>\n

B\u01b0\u1edbc 3: B\u1ea1n h\u00e3y ch\u1ecdn v\u00e0o \u201cRecovery mode\u201d \u0111\u1ec3 ti\u1ebfn h\u00e0nh gi\u1ea3i n\u00e9n v\u00e0 b\u1ea5m ch\u1ecdn v\u00e0o khu v\u1ef1c \u0111\u01b0\u1eddng d\u1eabn g\u00f5 \u201ccmd\u201d nh\u01b0 h\u00ecnh \u1ea3nh m\u00f4 t\u1ea3.<\/span><\/p>\n

\"bootloader-9\"<\/p>\n

B\u01b0\u1edbc 4: Ti\u1ebfp t\u1ee5c b\u1ea1n s\u1ebd g\u00f5 \u201cfastboot devices\u201d v\u00e0 nh\u1ea5n ch\u1ecdn \u201cEnter\u201d.<\/span><\/p>\n

\"bootloader-10\"<\/p>\n

B\u01b0\u1edbc 5: Ti\u1ebfp theo b\u1ea1n c\u0169ng s\u1ebd g\u00f5 \u201cfastboot oem device-info\u201d v\u00e0 nh\u1ea5n ch\u1ecdn \u201cEnter\u201d.<\/span><\/p>\n

\"bootloader-11\"<\/p>\n

B\u01b0\u1edbc 6: Cu\u1ed1i c\u00f9ng, b\u1ea1n h\u00e3y check d\u00f2ng \u201cDevice unlocked\u201d, n\u1ebfu nh\u01b0 n\u00f3 hi\u1ec3n th\u1ecb l\u00e0 \u201ctrue\u201d th\u00ec \u0111\u1ed3ng ngh\u0129a l\u00e0 thi\u1ebft b\u1ecb n\u00e0y \u0111\u00e3<\/span> unlock bootloader<\/b> r\u1ed3i. Ng\u01b0\u1ee3c l\u1ea1i, n\u1ebfu \u201cfalse\u201d th\u00ec l\u00e0 ch\u01b0a unlock.<\/span><\/p>\n

\"bootloader-12\"<\/p>\n

K\u1ebft lu\u1eadn<\/b><\/h2>\n

Bootloader <\/b>\u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh kh\u1edfi \u0111\u1ed9ng c\u1ee7a thi\u1ebft b\u1ecb Android, ch\u1ecbu tr\u00e1ch nhi\u1ec7m ki\u1ec3m tra v\u00e0 t\u1ea3i h\u1ec7 \u0111i\u1ec1u h\u00e0nh l\u00ean b\u1ed9 nh\u1edb thi\u1ebft b\u1ecb. \u0110\u00e2y l\u00e0 \u0111i\u1ec3m kh\u1edfi \u0111\u1ea7u c\u1ee7a h\u1ec7 th\u1ed1ng, gi\u00fap x\u00e1c minh t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a ph\u1ea7n m\u1ec1m tr\u01b0\u1edbc khi cho ph\u00e9p thi\u1ebft b\u1ecb kh\u1edfi \u0111\u1ed9ng. Vi\u1ec7c m\u1edf kh\u00f3a ph\u1ea7n m\u1ec1m n\u00e0y mang l\u1ea1i kh\u1ea3 n\u0103ng t\u00f9y ch\u1ec9nh v\u00e0 ki\u1ec3m so\u00e1t s\u00e2u h\u01a1n \u0111\u1ed1i v\u1edbi h\u1ec7 \u0111i\u1ec1u h\u00e0nh, cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng c\u00e0i \u0111\u1eb7t c\u00e1c ROM t\u00f9y ch\u1ec9nh v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c thay \u0111\u1ed5i n\u00e2ng cao. Tuy nhi\u00ean, \u0111i\u1ec1u n\u00e0y c\u0169ng \u0111i k\u00e8m v\u1edbi m\u1ed9t s\u1ed1 r\u1ee7i ro, nh\u01b0 m\u1ea5t b\u1ea3o h\u00e0nh, nguy c\u01a1 nhi\u1ec5m malware, v\u00e0 m\u1ea5t d\u1eef li\u1ec7u.<\/span><\/p>\n

Xem th\u00eam:<\/b><\/p>\n