{"id":6401,"date":"2025-04-26T20:39:52","date_gmt":"2025-04-26T13:39:52","guid":{"rendered":"https:\/\/bitcoinvn.io\/shop-2\/?p=6401"},"modified":"2025-04-27T12:02:42","modified_gmt":"2025-04-27T05:02:42","slug":"the-sd-vi-coldcard","status":"publish","type":"post","link":"https:\/\/bitcoinvn.io\/shop-2\/vi\/the-sd-vi-coldcard\/","title":{"rendered":"C\u00f3 c\u1ea7n th\u1ebb SD khi s\u1eed d\u1ee5ng v\u00ed Coldcard?"},"content":{"rendered":"<p><i><span style=\"font-weight: 400;\">Coldcard l\u00e0 m\u1ed9t trong nh\u1eefng d\u00f2ng v\u00ed c\u1ee9ng b\u1ea3o m\u1eadt Bitcoin h\u00e0ng \u0111\u1ea7u th\u1ebf gi\u1edbi. M\u1eb7c d\u00f9 b\u1ea1n v\u1eabn <\/span><\/i><b><i>c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng Coldcard m\u00e0 kh\u00f4ng c\u1ea7n th\u1ebb SD,<\/i><\/b><i><span style=\"font-weight: 400;\"> nh\u01b0ng vi\u1ec7c trang b\u1ecb th\u00eam th\u1ebb s\u1ebd gi\u00fap t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt v\u00e0 s\u1ef1 ti\u1ec7n l\u1ee3i trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng.<\/span><\/i><\/p>\n<h2><b>T\u1ea1i sao n\u00ean d\u00f9ng th\u1ebb SD v\u1edbi Coldcard?<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>H\u1ed7 tr\u1ee3 sao l\u01b0u d\u1eef li\u1ec7u an to\u00e0n:<\/b><span style=\"font-weight: 400;\"> Th\u1ebb SD gi\u00fap b\u1ea1n t\u1ea1o v\u00e0 ki\u1ec3m tra c\u00e1c b\u1ea3n sao l\u01b0u seed phrase (c\u1ee5m t\u1eeb kh\u00f4i ph\u1ee5c v\u00ed). N\u00f3 c\u00f2n h\u1ed7 tr\u1ee3 b\u1ea1n c\u00e0i \u0111\u1eb7t v\u00e0 l\u01b0u tr\u1eef nh\u1eefng d\u1eef li\u1ec7u quan tr\u1ecdng kh\u00e1c. Nh\u1edd \u0111\u00f3, b\u1ea1n s\u1ebd d\u1ec5 d\u00e0ng kh\u00f4i ph\u1ee5c d\u1eef li\u1ec7u n\u1ebfu m\u1ea5t ho\u1eb7c h\u1ecfng v\u00ed c\u1ee9ng.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>C\u1eadp nh\u1eadt firmware: <\/b><span style=\"font-weight: 400;\">N\u00e2ng c\u1ea5p firmware c\u1ee7a Coldcard qua th\u1ebb SD s\u1ebd gi\u00fap b\u1ea1n t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt, s\u1eeda l\u1ed7i v\u00e0 th\u00eam t\u00ednh n\u0103ng m\u1edbi (b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 c\u1eadp nh\u1eadt qua USB n\u1ebfu mu\u1ed1n).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>K\u00fd giao d\u1ecbch ngo\u1ea1i tuy\u1ebfn (air-gapped): <\/b><span style=\"font-weight: 400;\">Th\u1ebb SD h\u1ed7 tr\u1ee3 th\u1ef1c hi\u1ec7n c\u00e1c giao d\u1ecbch m\u00e0 kh\u00f4ng c\u1ea7n k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp v\u1edbi m\u00e1y t\u00ednh, gi\u1eef cho kh\u00f3a ri\u00eang lu\u00f4n an to\u00e0n, c\u00e1ch ly kh\u1ecfi m\u00f4i tr\u01b0\u1eddng internet.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Xu\u1ea5t d\u1eef li\u1ec7u v\u00ed: <\/b><span style=\"font-weight: 400;\">T\u1ea5m th\u1ebb nh\u1ecf b\u00e9 n\u00e0y l\u00e0 \u201ctr\u1ee3 th\u1ee7 \u0111\u1eafc l\u1ef1c\u201d gi\u00fap b\u1ea1n t\u1ea1o v\u00e0 xu\u1ea5t th\u00f4ng tin v\u00ed nh\u01b0 kh\u00f3a c\u00f4ng khai v\u00e0 \u0111\u1ecba ch\u1ec9, \u0111\u1ec3 li\u00ean k\u1ebft Coldcard v\u1edbi c\u00e1c v\u00ed ph\u1ea7n m\u1ec1m t\u01b0\u01a1ng th\u00edch.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Nh\u00e2n b\u1ea3n v\u00ed: <\/b><span style=\"font-weight: 400;\">T\u1ea1o m\u1ed9t b\u1ea3n sao gi\u1ed1ng h\u1ec7t v\u00ed Coldcard c\u1ee7a b\u1ea1n (bao g\u1ed3m c\u1ea3 c\u00e0i \u0111\u1eb7t v\u00e0 d\u1eef li\u1ec7u) tr\u00ean th\u1ebb SD s\u1ebd gi\u00fap b\u1ea1n c\u00f3 m\u1ed9t b\u1ea3n d\u1ef1 ph\u00f2ng \u0111\u1ec3 d\u00f9ng khi v\u00ed ch\u00ednh b\u1ecb m\u1ea5t ho\u1eb7c g\u1eb7p s\u1ef1 c\u1ed1.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">*T\u00ednh n\u0103ng <strong>quan tr\u1ecdng nh\u1ea5t<\/strong> c\u1ee7a th\u1ebb SD \u0111\u1ed1i v\u1edbi Coldcard ch\u00ednh l\u00e0: <strong>L<\/strong><\/span><b>\u01b0u passphrase (m\u1eadt kh\u1ea9u ph\u1ee5). T\u00ednh n\u0103ng n\u00e0y cho ph\u00e9p b\u1ea1n l\u01b0u tr\u1eef<\/b> c\u00e1c m\u1eadt kh\u1ea9u Passphrase (\u1edf d\u1ea1ng m\u00e3 h\u00f3a) tr\u00ean th\u1ebb SD \u0111\u1ec3 d\u1ec5 d\u00e0ng kh\u00f4i ph\u1ee5c v\u00ed khi c\u1ea7n, \u0111\u1ed3ng th\u1eddi t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt v\u00e0 cho ph\u00e9p b\u1ea1n t\u1ea1o nhi\u1ec1u v\u00ed kh\u00e1c nhau ch\u1ec9 v\u1edbi m\u1ed9t thi\u1ebft b\u1ecb Coldcard.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-6398 size-full\" src=\"https:\/\/bitcoinvn.io\/shop-2\/wp-content\/uploads\/2025\/04\/sd-coldcard-2.jpg\" alt=\"\" width=\"600\" height=\"384\" srcset=\"https:\/\/bitcoinvn.io\/shop-2\/wp-content\/uploads\/2025\/04\/sd-coldcard-2.jpg 600w, https:\/\/bitcoinvn.io\/shop-2\/wp-content\/uploads\/2025\/04\/sd-coldcard-2-300x192.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p style=\"text-align: center;\"><i><span style=\"font-weight: 400;\">V\u00ed c\u1ee9ng Coldcard t\u00edch h\u1ee3p th\u00eam th\u1ebb SD s\u1ebd mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch tuy\u1ec7t v\u1eddi. Ngu\u1ed3n \u1ea3nh: <\/span><\/i><a href=\"https:\/\/nahuelhernandez.com\/blog\/coldcard_ultrasecure_bitcoin_hardware_wallet\/\" target=\"_blank\" rel=\"noopener\"><i><span style=\"font-weight: 400;\">Nahual Hernandez<\/span><\/i><\/a><\/p>\n<h2><b>Khi n\u00e0o b\u1ea1n kh\u00f4ng c\u1ea7n th\u1ebb SD?<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Kh\u1edfi \u0111\u1ed9ng v\u00e0 nh\u1eadp m\u00e3 PIN:<\/b><span style=\"font-weight: 400;\"> B\u1ea1n c\u00f3 th\u1ec3 b\u1eadt ngu\u1ed3n Coldcard v\u00e0 nh\u1eadp m\u00e3 PIN m\u00e0 kh\u00f4ng c\u1ea7n th\u1ebb SD. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p b\u1ea1n truy c\u1eadp c\u00e1c ch\u1ee9c n\u0103ng c\u01a1 b\u1ea3n nh\u01b0 thi\u1ebft l\u1eadp thi\u1ebft b\u1ecb, ch\u1ec9nh s\u1eeda c\u00e0i \u0111\u1eb7t ho\u1eb7c xem th\u00f4ng tin v\u00ed m\u00e0 kh\u00f4ng c\u1ea7n th\u1ef1c hi\u1ec7n thao t\u00e1c truy\u1ec1n d\u1eef li\u1ec7u.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>K\u1ebft n\u1ed1i USB \u0111\u1ec3 k\u00fd giao d\u1ecbch:<\/b><span style=\"font-weight: 400;\"> Coldcard c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp v\u1edbi m\u00e1y t\u00ednh qua c\u1ed5ng USB \u0111\u1ec3 k\u00fd giao d\u1ecbch th\u00f4ng qua c\u00e1c v\u00ed ph\u1ea7n m\u1ec1m t\u01b0\u01a1ng th\u00edch. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y cho ph\u00e9p b\u1ea1n k\u00fd giao d\u1ecbch m\u00e0 kh\u00f4ng c\u1ea7n \u0111\u1ebfn th\u1ebb SD.<\/span><\/li>\n<\/ul>\n<h2><b>Mua Coldcard ch\u00ednh h\u00e3ng \u1edf \u0111\u00e2u t\u1ea1i Vi\u1ec7t Nam?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">B\u1ea1n c\u00f3 th\u1ec3 mua v\u00ed Coldcard t\u1ea1i BitcoinVN Shop &#8211; \u0111\u1ea1i l\u00fd chuy\u00ean ph\u00e2n ph\u1ed1i c\u00e1c d\u00f2ng v\u00ed c\u1ee9ng ch\u00ednh h\u00e3ng nh\u01b0 <\/span><a href=\"https:\/\/bitcoinvn.io\/shop-2\/product-category\/hardware-wallets\/ledger\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Ledger<\/span><\/a><span style=\"font-weight: 400;\">, <\/span><a href=\"https:\/\/bitcoinvn.io\/shop-2\/product-category\/hardware-wallets\/trezor\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Trezor<\/span><\/a><span style=\"font-weight: 400;\">, <\/span><a href=\"https:\/\/bitcoinvn.io\/shop-2\/product-category\/hardware-wallets\/coinkite-en\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Coldcard<\/span><\/a><span style=\"font-weight: 400;\"> v\u00e0 nhi\u1ec1u th\u01b0\u01a1ng hi\u1ec7u v\u00ed c\u1ee9ng h\u00e0ng \u0111\u1ea7u th\u1ebf gi\u1edbi. Khi mua h\u00e0ng t\u1ea1i Shop, b\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c <strong>b\u1ea3o h\u00e0nh 1 \u0111\u1ed5i 1<\/strong> n\u1ebfu s\u1ea3n ph\u1ea9m c\u00f3 l\u1ed7i thu\u1ed9c v\u1ec1 nh\u00e0 s\u1ea3n xu\u1ea5t &amp; \u0111\u01b0\u1ee3c <strong>t\u1eb7ng bu\u1ed5i t\u01b0 v\u1ea5n b\u1ea3o m\u1eadt mi\u1ec5n ph\u00ed<\/strong> c\u00f9ng chuy\u00ean gia \u0111\u1ec3 b\u1eaft \u0111\u1ea7u h\u00e0nh tr\u00ecnh t\u1ef1 qu\u1ea3n ti\u1ec1n \u0111i\u1ec7n t\u1eed \u0111\u00fang c\u00e1ch.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">B\u00ean c\u1ea1nh \u0111\u00f3, BitcoinVN c\u00f2n cung c\u1ea5p <\/span><a href=\"https:\/\/bitcoinvn.io\/custody\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">d\u1ecbch v\u1ee5 l\u01b0u k\u00fd<\/span><\/a><span style=\"font-weight: 400;\"> (custody), gi\u00fap gia t\u0103ng m\u1ee9c \u0111\u1ed9 b\u1ea3o v\u1ec7 cho t\u00e0i s\u1ea3n k\u1ef9 thu\u1eadt s\u1ed1 c\u1ee7a b\u1ea1n. N\u1ebfu b\u1ea1n c\u1ea7n t\u01b0 v\u1ea5n chuy\u00ean s\u00e2u h\u01a1n v\u1ec1 b\u1ea3o m\u1eadt ho\u1eb7c l\u01b0u tr\u1eef, h\u00e3y <\/span><a href=\"https:\/\/bitcoinvn.io\/consulting\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">li\u00ean h\u1ec7 v\u1edbi \u0111\u1ed9i ng\u0169 chuy\u00ean gia c\u1ee7a BitcoinVN<\/span><\/a><span style=\"font-weight: 400;\"> \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 t\u1eadn t\u00ecnh.<\/span><\/p>\n<h2><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-6397 size-full\" src=\"https:\/\/bitcoinvn.io\/shop-2\/wp-content\/uploads\/2025\/04\/sd-coldcard-3.jpg\" alt=\"\" width=\"600\" height=\"450\" srcset=\"https:\/\/bitcoinvn.io\/shop-2\/wp-content\/uploads\/2025\/04\/sd-coldcard-3.jpg 600w, https:\/\/bitcoinvn.io\/shop-2\/wp-content\/uploads\/2025\/04\/sd-coldcard-3-300x225.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/h2>\n<h2><b>K\u1ebft lu\u1eadn<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">M\u1eb7c d\u00f9 kh\u00f4ng b\u1eaft bu\u1ed9c, nh\u01b0ng vi\u1ec7c s\u1eed d\u1ee5ng th\u1ebb SD v\u1edbi v\u00ed Coldcard r\u1ea5t \u0111\u01b0\u1ee3c khuy\u1ebfn kh\u00edch \u0111\u1ec3 gi\u00fap b\u1ea1n t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt v\u00e0 t\u1eadn h\u01b0\u1edfng nhi\u1ec1u ti\u1ec7n \u00edch.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Th\u1ebb SD gi\u00fap b\u1ea1n d\u1ec5 d\u00e0ng sao l\u01b0u d\u1eef li\u1ec7u, c\u1eadp nh\u1eadt ph\u1ea7n m\u1ec1m an to\u00e0n v\u00e0 th\u1ef1c hi\u1ec7n <a href=\"https:\/\/bitcoinvn.io\/shop-2\/product\/sandisk-ultra-32gb-microsd-for-coldcard\/\" target=\"_blank\" rel=\"noopener\">giao d\u1ecbch ngo\u1ea1i tuy\u1ebfn<\/a> m\u00e0 kh\u00f4ng c\u1ea7n k\u1ebft n\u1ed1i internet, t\u1eeb \u0111\u00f3 gi\u1ea3m thi\u1ec3u nguy c\u01a1 l\u1ed9 kh\u00f3a ri\u00eang.\u00a0<\/span><span style=\"font-weight: 400;\">N\u1ebfu b\u1ea1n th\u1eadt s\u1ef1 quan t\u00e2m \u0111\u1ebfn vi\u1ec7c b\u1ea3o v\u1ec7 t\u00e0i s\u1ea3n s\u1ed1 c\u1ee7a m\u00ecnh &#8211; h\u00e3y trang b\u1ecb th\u1ebb SD ngay t\u1eeb b\u00e2y gi\u1edd!<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Coldcard l\u00e0 m\u1ed9t trong nh\u1eefng d\u00f2ng v\u00ed c\u1ee9ng b\u1ea3o m\u1eadt Bitcoin h\u00e0ng \u0111\u1ea7u th\u1ebf gi\u1edbi. M\u1eb7c d\u00f9 b\u1ea1n v\u1eabn c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng Coldcard m\u00e0 kh\u00f4ng c\u1ea7n th\u1ebb SD, nh\u01b0ng vi\u1ec7c trang b\u1ecb th\u00eam th\u1ebb s\u1ebd gi\u00fap t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt v\u00e0 s\u1ef1 ti\u1ec7n l\u1ee3i trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng. T\u1ea1i sao n\u00ean d\u00f9ng th\u1ebb [&hellip;]<\/p>\n","protected":false},"author":136,"featured_media":6399,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[130],"tags":[],"class_list":["post-6401","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>C\u00f3 c\u1ea7n th\u1ebb SD khi s\u1eed d\u1ee5ng v\u00ed Coldcard? - BitcoinVN Shop<\/title>\n<meta name=\"description\" content=\"Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng th\u1ebb SD khi d\u00f9ng v\u00ed Coldcard? V\u00e0 tr\u01b0\u1eddng h\u1ee3p n\u00e0o b\u1ea1n c\u00f3 th\u1ec3 b\u1ecf qua? 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