{"id":11484,"date":"2026-06-27T02:55:17","date_gmt":"2026-06-26T19:55:17","guid":{"rendered":"https:\/\/tct.vn\/blog\/cach-tim-mat-khau-wi-fi-tren-dien-thoai-android-ma-khong-can-ung-dung\/"},"modified":"2026-06-27T02:55:17","modified_gmt":"2026-06-26T19:55:17","slug":"cach-tim-mat-khau-wi-fi-tren-dien-thoai-android-ma-khong-can-ung-dung","status":"publish","type":"post","link":"https:\/\/tct.vn\/blog\/cach-tim-mat-khau-wi-fi-tren-dien-thoai-android-ma-khong-can-ung-dung\/","title":{"rendered":"C\u00e1ch t\u00ecm m\u1eadt kh\u1ea9u Wi-Fi tr\u00ean \u0111i\u1ec7n tho\u1ea1i Android m\u00e0 kh\u00f4ng c\u1ea7n \u1ee9ng d\u1ee5ng"},"content":{"rendered":"

<\/p>\n

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B\u1ea1n t\u1eebng th\u1eed k\u1ebft n\u1ed1i thi\u1ebft b\u1ecb c\u1ee7a m\u1ed9t ng\u01b0\u1eddi b\u1ea1n v\u00e0o m\u1ea1ng Wi-Fi c\u1ee7a m\u00ecnh, nh\u01b0ng ch\u1ec9 \u0111\u1ec3 nh\u1eadn ra r\u1eb1ng b\u1ea1n kh\u00f4ng bi\u1ebft m\u1eadt kh\u1ea9u l\u00e0 g\u00ec? B\u1ea1n kh\u00f4ng \u0111\u01a1n \u0111\u1ed9c trong vi\u1ec7c n\u00e0y. H\u1ea7u h\u1ebft ch\u00fang ta \u0111\u1ec1u nh\u1eadp m\u1eadt kh\u1ea9u m\u1ed9t l\u1ea7n v\u00e0 qu\u00ean n\u00f3 \u0111i cho \u0111\u1ebfn khi c\u1ea7n ph\u1ea3i s\u1eed d\u1ee5ng l\u1ea1i.<\/p>\n

\u0110i\u1ec7n tho\u1ea1i Android c\u1ee7a b\u1ea1n \u0111\u00e3 l\u01b0u tr\u1eef t\u1ea5t c\u1ea3 c\u00e1c m\u1eadt kh\u1ea9u WiFi m\u00e0 kh\u00f4ng c\u1ea7n th\u00f4ng b\u00e1o. D\u00f9 b\u1ea1n c\u00f3 \u0111i\u1ec7n tho\u1ea1i Pixel m\u1edbi nh\u1ea5t hay m\u1ed9t chi\u1ebfc Galaxy c\u0169, v\u1eabn c\u00f3 c\u00e1ch \u0111\u1ec3 t\u00ecm th\u1ea5y m\u1eadt kh\u1ea9u n\u00e0y m\u00e0 kh\u00f4ng c\u1ea7n t\u1ea3i \u1ee9ng d\u1ee5ng \u0111\u00e1ng ng\u1edd hay th\u1ef1c hi\u1ec7n b\u1ea5t k\u1ef3 thao t\u00e1c k\u1ef9 thu\u1eadt n\u00e0o.<\/p>\n

<\/figure>\n

M\u1eadt kh\u1ea9u Wi-Fi \u0111\u00e3 l\u01b0u tr\u1eef<\/h2>\n

Khi k\u1ebft n\u1ed1i v\u00e0o m\u1ea1ng WiFi, \u0111i\u1ec7n tho\u1ea1i Android s\u1ebd t\u1ef1 \u0111\u1ed9ng l\u01b0u tr\u1eef t\u00ean v\u00e0 m\u1eadt kh\u1ea9u c\u1ee7a m\u1ea1ng \u0111\u1ec3 b\u1ea1n kh\u00f4ng ph\u1ea3i nh\u1eadp l\u1ea1i m\u1ed7i l\u1ea7n. C\u00f3 th\u1ec3 xem nh\u01b0 tr\u00ecnh duy\u1ec7t nh\u1edb m\u1eadt kh\u1ea9u trang web, nh\u01b0ng v\u1edbi m\u1ea1ng WiFi.<\/p>\n

<\/figure>\n

T\u00ednh n\u0103ng ch\u00ednh:<\/p>\n

    \n
  • L\u01b0u tr\u1eef t\u1ef1 \u0111\u1ed9ng: M\u1ed7i m\u1ea1ng b\u1ea1n k\u1ebft n\u1ed1i \u0111\u1ec1u \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef<\/li>\n
  • T\u00edch h\u1ee3p \u0111\u1ed3ng b\u1ed9 h\u00f3a gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb: N\u1ebfu b\u1ea1n \u0111\u00e3 b\u1eadt t\u00ednh n\u0103ng sao l\u01b0u Google v\u00e0 \u0111\u0103ng nh\u1eadp v\u00e0o c\u00f9ng m\u1ed9t t\u00e0i kho\u1ea3n Google tr\u00ean nhi\u1ec1u thi\u1ebft b\u1ecb, m\u1eadt kh\u1ea9u WiFi c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ed3ng b\u1ed9 h\u00f3a gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb Android c\u1ee7a b\u1ea1n.<\/li>\n
  • B\u1ea3o v\u1ec7 an ninh: M\u1eadt kh\u1ea9u \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a v\u00e0 c\u1ea7n x\u00e1c th\u1ef1c \u0111\u1ec3 xem<\/li>\n
  • M\u00e3 QR chia s\u1ebb:<\/strong> C\u00e1c phi\u00ean b\u1ea3n Android hi\u1ec7n \u0111\u1ea1i c\u00f3 th\u1ec3 t\u1ea1o m\u00e3 QR \u0111\u1ec3 d\u1ec5 d\u00e0ng chia s\u1ebb<\/li>\n<\/ul>\n

    L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 t\u00ecm m\u1eadt kh\u1ea9u WiFi tr\u00ean Android hi\u1ec7n \u0111\u1ea1i (Android 10+)<\/h2>\n
    <\/figure>\n

    N\u1ebfu b\u1ea1n \u0111ang ch\u1ea1y phi\u00ean b\u1ea3n Android 10 ho\u1eb7c sau \u0111\u00f3 (\u0111\u00e2y l\u00e0 h\u1ea7u h\u1ebft \u0111i\u1ec7n tho\u1ea1i t\u1eeb n\u0103m 2019 tr\u1edf v\u1ec1 sau), th\u00ec \u0111i\u1ec1u n\u00e0y kh\u00e1 d\u1ec5 d\u00e0ng. C\u00e1c b\u01b0\u1edbc c\u1ee5 th\u1ec3 c\u00f3 th\u1ec3 kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o nh\u00e0 s\u1ea3n xu\u1ea5t \u0111i\u1ec7n tho\u1ea1i c\u1ee7a b\u1ea1n, nh\u01b0ng qu\u00e1 tr\u00ecnh chung l\u1ea1i v\u1eabn gi\u1ed1ng nhau.<\/p>\n

    Tr\u00ean Google Pixel v\u00e0 Android g\u1ed1c<\/h3>\n
    <\/figure>\n

    \u0110i\u1ec7n tho\u1ea1i Google Pixel v\u00e0 thi\u1ebft b\u1ecb ch\u1ea1y h\u1ec7 \u0111i\u1ec1u h\u00e0nh Android g\u1ed1c khi\u1ebfn vi\u1ec7c n\u00e0y tr\u1edf n\u00ean \u0111\u01a1n gi\u1ea3n nh\u1ea5t.<\/p>\n

      \n
    1. M\u1edf C\u00e0i \u0111\u1eb7t v\u00e0 nh\u1ea5n M\u1ea1ng & Internet.<\/li>\n<\/ol>\n
        \n
      1. M\u1edf Internet<\/li>\n<\/ol>\n
          \n
        1. T\u00ecm m\u1ea1ng Wi-Fi b\u1ea1n mu\u1ed1n bi\u1ebft m\u1eadt kh\u1ea9u v\u00e0 nh\u1ea5n v\u00e0o bi\u1ec3u t\u01b0\u1ee3ng gi\u1ea5u<\/strong> b\u00ean c\u1ea1nh n\u00f3.<\/li>\n<\/ol>\n
            \n
          1. Nh\u1ea5n v\u00e0o n\u00fat Chia s\u1ebb<\/strong>. \u0110i\u1ec7n tho\u1ea1i c\u1ee7a b\u1ea1n s\u1ebd h\u1ecfi b\u1ea1n x\u00e1c th\u1ef1c danh t\u00ednh b\u1eb1ng d\u1ea5u v\u00e2n tay, m\u00e3 PIN ho\u1eb7c m\u1eabu v\u1ebd.<\/li>\n<\/ol>\n
              \n
            1. \u0110i\u1ec7n tho\u1ea1i c\u1ee7a b\u1ea1n hi\u1ec7n ra m\u1ed9t m\u00e3 QR v\u1edbi m\u1eadt kh\u1ea9u \u0111\u01b0\u1ee3c vi\u1ebft r\u00f5 r\u00e0ng ngay d\u01b0\u1edbi \u0111\u00f3. Tr\u00ean nhi\u1ec1u \u0111i\u1ec7n tho\u1ea1i Android hi\u1ec7n \u0111\u1ea1i, b\u1ea1n s\u1ebd th\u1ea5y t\u00f9y ch\u1ecdn Nearby Share<\/strong> (ho\u1eb7c Quick Share<\/strong>) tr\u00ean c\u00f9ng m\u00e0n h\u00ecnh n\u00e0y – nh\u1ea5p v\u00e0o \u0111\u1ec3 g\u1eedi th\u00f4ng tin WiFi tr\u1ef1c ti\u1ebfp \u0111\u1ebfn thi\u1ebft b\u1ecb g\u1ea7n \u0111\u00f3 m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i qu\u00e9t m\u00e3 QR b\u1eb1ng tay.<\/li>\n<\/ol>\n

              B\u1ea1n c\u1ea7n m\u1eadt kh\u1ea9u cho m\u1ea1ng m\u00e0 kh\u00f4ng \u0111ang k\u1ebft n\u1ed1i?<\/strong> Tr\u00ean m\u00e0n h\u00ecnh Internet (b\u01b0\u1edbc 2), t\u00ecm ki\u1ebfm m\u1ee5c Saved networks<\/strong>. Nh\u1ea5n v\u00e0o \u0111\u00f3 \u0111\u1ec3 xem t\u1ea5t c\u1ea3 c\u00e1c m\u1ea1ng \u0111\u00e3 t\u1eebng k\u1ebft n\u1ed1i, ch\u1ecdn m\u1ea1ng b\u1ea1n c\u1ea7n v\u00e0 sau \u0111\u00f3 l\u00e0m theo c\u00e1c b\u01b0\u1edbc chia s\u1ebb\/QR tr\u00ean.<\/p>\n

              <\/figure>\n

              Tr\u00ean \u0111i\u1ec7n tho\u1ea1i Samsung v\u00e0 c\u00e1c \u0111i\u1ec7n tho\u1ea1i Android kh\u00e1c<\/h3>\n

              sang ti\u1ebfng Vi\u1ec7t:<\/p>\n

              Samsung v\u00e0 c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t kh\u00e1c \u0111\u00f4i khi s\u1ebd s\u1eafp x\u1ebfp c\u00e1c t\u00f9y ch\u1ecdn c\u1ee7a h\u1ecd theo c\u00e1ch kh\u00e1c nhau, nh\u01b0ng k\u1ebft qu\u1ea3 cu\u1ed1i c\u00f9ng v\u1eabn gi\u1ed1ng nhau. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1ch n\u00f3 ho\u1ea1t \u0111\u1ed9ng th\u00f4ng th\u01b0\u1eddng:<\/p>\n

              <\/figure>\n
                \n
              1. M\u1edf \u1ee9ng d\u1ee5ng C\u00e0i \u0111\u1eb7t v\u00e0 t\u00ecm ki\u1ebfm m\u1ee5c K\u1ebft n\u1ed1i ho\u1eb7c M\u1ea1ng v\u00e0 Internet.<\/li>\n<\/ol>\n
                  \n
                1. N\u00fat Wi-Fi<\/li>\n<\/ol>\n
                    \n
                  1. T\u00ecm m\u1ea1ng c\u1ee7a b\u1ea1n v\u00e0 nh\u1ea5n bi\u1ec3u t\u01b0\u1ee3ng c\u1ed1i xay c\u1ea1nh n\u00f3, ho\u1eb7c t\u00ecm n\u00fat m\u00e3 QR \u1edf cu\u1ed1i m\u00e0n h\u00ecnh.<\/li>\n<\/ol>\n
                      \n
                    1. N\u1ebfu b\u1ea1n th\u1ea5y m\u00e3 QR tr\u1ef1c ti\u1ebfp, b\u1ea1n s\u1ebd c\u1ea7n qu\u00e9t n\u00f3 b\u1eb1ng thi\u1ebft b\u1ecb kh\u00e1c ho\u1eb7c \u1ee9ng d\u1ee5ng qu\u00e9t m\u00e3 QR \u0111\u1ec3 gi\u1ea3i m\u00e3 m\u1eadt kh\u1ea9u. N\u1ebfu b\u1ea1n th\u1ea5y chi ti\u1ebft m\u1ea1ng, h\u00e3y t\u00ecm n\u00fat Chia s\u1ebb<\/strong>.<\/li>\n<\/ol>\n

                      L\u1eddi khuy\u00ean chuy\u00ean gia:<\/strong> N\u1ebfu \u0111i\u1ec7n tho\u1ea1i ch\u1ec9 hi\u1ec3n th\u1ecb m\u00e3 QR m\u00e0 kh\u00f4ng c\u00f3 m\u1eadt kh\u1ea9u r\u00f5 r\u00e0ng, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng Google Lens (\u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u00e0o h\u1ea7u h\u1ebft camera Android) \u0111\u1ec3 qu\u00e9t m\u00e3 QR v\u00e0 ti\u1ebft l\u1ed9 m\u1eadt kh\u1ea9u. B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng TrendMicro\u2019s QRScanner m\u1ee5c \u0111\u00edch n\u00e0y.<\/p>\n

                      Phi\u00ean b\u1ea3n Android C\u0169 h\u01a1n (Android 9 v\u00e0 Tr\u01b0\u1edbc \u0111\u00f3)<\/h2>\n
                      <\/figure>\n

                      N\u1ebfu b\u1ea1n \u0111ang s\u1eed d\u1ee5ng phi\u00ean b\u1ea3n Android c\u0169, th\u00ec vi\u1ec7c xem m\u1eadt kh\u1ea9u s\u1ebd tr\u1edf n\u00ean kh\u00f3 kh\u0103n h\u01a1n. T\u00ednh n\u0103ng xem m\u1eadt kh\u1ea9u m\u1eb7c \u0111\u1ecbnh tr\u00ean thi\u1ebft b\u1ecb ch\u01b0a \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3, v\u00ec v\u1eady b\u1ea1n c\u00f3 th\u1ec3 ph\u1ea3i “root” thi\u1ebft b\u1ecb (ch\u00fang t\u00f4i kh\u00f4ng khuy\u1ebfn ngh\u1ecb) ho\u1eb7c s\u1eed d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p thay th\u1ebf.<\/p>\n

                      T\u1ea1i sao ch\u00fang t\u00f4i kh\u00f4ng khuy\u1ebfn ngh\u1ecb root:<\/p>\n

                      <\/figure>\n
                        \n
                      • **R\u1ee7i ro b\u1ea3o m\u1eadt:** Rooting s\u1ebd lo\u1ea1i b\u1ecf nh\u1eefng bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 quan tr\u1ecdng.<\/li>\n
                      • Tr\u1eeb b\u1ea3o h\u00e0nh:<\/strong> H\u1ea7u h\u1ebft c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ec1u s\u1ebd v\u00f4 hi\u1ec7u h\u00f3a b\u1ea3o h\u00e0nh cho thi\u1ebft b\u1ecb \u0111\u00e3 root.<\/li>\n
                      • R\u1ee7i ro l\u00e0m “h\u1ecfng” \u0111i\u1ec7n tho\u1ea1i:<\/strong> B\u1ea1n c\u00f3 th\u1ec3 g\u00e2y thi\u1ec7t h\u1ea1i v\u0129nh vi\u1ec5n cho \u0111i\u1ec7n tho\u1ea1i n\u1ebfu x\u1ea3y ra l\u1ed7i g\u00ec \u0111\u00f3.<\/li>\n
                      • \u1ee8ng d\u1ee5ng ng\u00e2n h\u00e0ng g\u1eb7p v\u1ea5n \u0111\u1ec1: Nhi\u1ec1u \u1ee9ng d\u1ee5ng ng\u00e2n h\u00e0ng v\u00e0 thanh to\u00e1n t\u1eeb ch\u1ed1i ho\u1ea1t \u0111\u1ed9ng tr\u00ean thi\u1ebft b\u1ecb \u0111\u00e3 \u0111\u01b0\u1ee3c root.<\/li>\n<\/ul>\n

                        Thay v\u00ec th\u1eed nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y, h\u00e3y th\u1eed c\u00e1c ph\u01b0\u01a1ng ph\u00e1p an to\u00e0n h\u01a1n:<\/p>\n

                        Ki\u1ec3m tra Router c\u1ee7a b\u1ea1n<\/h3>\n
                        <\/figure>\n
                          \n
                        1. T\u00ecm ki\u1ebfm m\u1ed9t nh\u00e3n d\u00e1n tr\u00ean b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn c\u1ee7a b\u1ea1n v\u1edbi m\u1eadt kh\u1ea9u m\u1eb7c \u0111\u1ecbnh (th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00e1n nh\u00e3n l\u00e0 “M\u1eadt kh\u1ea9u WiFi”, “Ch\u00eca kh\u00f3a m\u1ea1ng” ho\u1eb7c “WPA Key”).<\/li>\n
                        2. M\u1edf tr\u00ecnh duy\u1ec7t web v\u00e0 truy c\u1eadp trang qu\u1ea3n tr\u1ecb c\u1ee7a b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn (th\u01b0\u1eddng l\u00e0 \u0111\u1ecba ch\u1ec9 192.168.1.1<\/code> ho\u1eb7c 192.168.0.1<\/code>).<\/li>\n
                        3. \u0110\u0103ng nh\u1eadp v\u1edbi th\u00f4ng tin qu\u1ea3n tr\u1ecb vi\u00ean (th\u01b0\u1eddng \u0111\u01b0\u1ee3c in tr\u00ean b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn ho\u1eb7c trong h\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng).<\/li>\n
                        4. \u0110i \u0111\u1ebfn c\u00e0i \u0111\u1eb7t kh\u00f4ng d\u00e2y \u0111\u1ec3 xem ho\u1eb7c thay \u0111\u1ed5i m\u1eadt kh\u1ea9u. B\u1ea1n c\u00f3 th\u1ec3 t\u00ecm hi\u1ec3u c\u00e1ch kh\u00f4i ph\u1ee5c l\u1ea1i m\u1eadt kh\u1ea9u Wi-Fi tr\u00ean b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn n\u1ebfu c\u1ea7n thi\u1ebft.<\/li>\n<\/ol>\n

                          Ki\u1ec3m tra c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c k\u1ebft n\u1ed1i<\/h3>\n

                          N\u1ebfu b\u1ea1n c\u00f3 m\u1ed9t m\u00e1y t\u00ednh Windows ho\u1eb7c Mac \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u00e0o c\u00f9ng m\u1ea1ng v\u1edbi \u0111i\u1ec7n tho\u1ea1i c\u1ee7a m\u00ecnh, th\u00ec b\u1ea1n c\u00f3 th\u1ec3 xem m\u1eadt kh\u1ea9u WiFi t\u1eeb \u0111\u00f3. Th\u1eadt d\u1ec5 d\u00e0ng h\u01a1n nhi\u1ec1u so v\u1edbi vi\u1ec7c ph\u1ea3i l\u00e0m tr\u00ean \u0111i\u1ec7n tho\u1ea1i.<\/p>\n

                          <\/figure>\n

                          N\u00ean s\u1eed d\u1ee5ng \u1ee9ng d\u1ee5ng m\u1eadt kh\u1ea9u Wi-Fi kh\u00f4ng?<\/h2>\n

                          B\u1ea1n s\u1ebd t\u00ecm th\u1ea5y r\u1ea5t nhi\u1ec1u \u1ee9ng d\u1ee5ng “kh\u00f4i ph\u1ee5c m\u1eadt kh\u1ea9u WiFi” tr\u00ean C\u1eeda h\u00e0ng Google Play, nh\u01b0ng th\u1ef1c s\u1ef1 th\u00ec h\u1ea7u h\u1ebft ch\u00fang \u0111\u1ec1u kh\u00f4ng \u0111\u00e1ng tin c\u1eady. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao ch\u00fang t\u00f4i tr\u00e1nh xa ch\u00fang:<\/p>\n