{"id":97678,"date":"2020-10-20T14:43:00","date_gmt":"2020-10-20T12:43:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/prochitaj-menya-polnostyu-kak-spasti-dannye-s-neispravnogo-ili-zablokirovannogo-telefona"},"modified":"2020-10-20T14:43:00","modified_gmt":"2020-10-20T12:43:00","slug":"prochitaj-menya-polnostyu-kak-spasti-dannye-s-neispravnogo-ili-zablokirovannogo-telefona","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/administrirovanie\/prochitaj-menya-polnostyu-kak-spasti-dannye-s-neispravnogo-ili-zablokirovannogo-telefona","title":{"rendered":"L\u00e6s mig helt! Hvordan redder man data fra en defekt eller l\u00e5st telefon?","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Jeg viser p\u00e5 en letforst\u00e5elig m\u00e5de, hvordan man gendanner data fra NAND-hukommelsen p\u00e5 en smartphone, uanset hvorfor det er n\u00f8dvendigt. I nogle tilf\u00e6lde er telefonen ubrugelig p\u00e5 grund af en beskadiget processor eller et kort, der er blevet v\u00e5dt uden mulighed for reparation, mens telefonen i andre tilf\u00e6lde er l\u00e5st, men dataene skal reddes.<\/p>\n

\"L\u00e6s
\n
\nJeg har v\u00e6ret heldig at arbejde i firmaet fix-oscomp, som er en afdeling af Oskomps virksomhed, der specialiserer sig i reparation af digitalt udstyr. Her l\u00e6rte jeg praktisk at anvende denne metode.
\n<\/a><\/noindex>
\nNAND er en type flashhukommelse, der er mest almindeligt anvendt i moderne smartphones.<\/p>\n

NAND-konstruktion if\u00f8lge Wikipedia<\/b>
\n NAND-konstruktionen er et tredimensionelt array. I bunden anvendes den samme matrix som i NOR, men i stedet for \u00e9n transistor ved hvert kryds installeres en s\u00f8jle af sekventielt tilsluttede celler. I en s\u00e5dan konstruktion f\u00e5r man mange gate-kredsl\u00f8b ved \u00e9t kryds. T\u00e6theden af arrangementet kan \u00f8ges betydeligt (for til \u00e9n celle i s\u00f8jlen er der kun \u00e9n gate-leder), men adgangsalgoritmen til cellerne for l\u00e6sning og skrivning bliver m\u00e6rkbart mere kompleks. Derudover er der installeret to MOS-transistorer i hver linje. Den styrende transistor for afl\u00e6sning af linjen (eng. bit line select transistor) er placeret mellem s\u00f8jlen af celler og afl\u00e6sningslinjen. Og den styrende transistor for jordforbindelse, som er placeret foran jorden (eng. ground select transistor).<\/p>\n

Dagens patient Xiaomi Mi Max 3:<\/p>\n

\"L\u00e6s
\n
\nEfter at v\u00e6re blevet v\u00e5de, t\u00e6nder den ikke.<\/p>\n

\"L\u00e6s
\n
\nDiagnosen viste, at processoren er mere d\u00f8d end levende. Kunden har brug for dataene fra telefonen, og det er muligt, at apparatet kan genoprettes.<\/p>\n

\"L\u00e6s
\n
\nKredsl\u00f8bet er blevet renset, men vi kan ikke skifte processoren, da processoren og NAND-hukommelsen er parret efter en n\u00f8gle, og vi skifter dem ogs\u00e5 i par. I s\u00e5danne tilf\u00e6lde tager vi et donor-kredsl\u00f8b fra en billigere model; i dette tilf\u00e6lde vil Xiaomi Redmi Note 5 v\u00e6re passende.<\/p>\n

\"L\u00e6s
\n
\nVi opvarmer kredsl\u00f8bet med undervarme.<\/p>\n

\"L\u00e6s
\n
\nVi p\u00e5f\u00f8rer flux.<\/p>\n

\"L\u00e6s
\n
\nVi opvarmer med en varmepistol.<\/p>\n

\"L\u00e6s
\n
\nVi fjerner NAND-hukommelsen.<\/p>\n

\"L\u00e6s
\n
\nVi renser resterne af flux.<\/p>\n

Vi kontrollerer forbindelserne.<\/p>\n

\"L\u00e6s
\n
\n\"L\u00e6s
\n
\nVi installerer hukommelsen i l\u00e6seenheden.<\/p>\n

\"L\u00e6s
\n
\n\"L\u00e6s
\n
\n\"L\u00e6s
\n
\nI vores tilf\u00e6lde har vi brug for partitionerne userdata og boot-filerne.<\/p>\n

\"L\u00e6s
\n
\nHastigheden kan n\u00e5 op til 10 MiB\/s. Men man skal forvente, at det tager lang tid. L\u00e6seprocessen tager i gennemsnit 2 timer.<\/p>\n

P\u00e5 denne m\u00e5de kan man \u00f8ge m\u00e6ngden af hukommelse og RAM, hvis n\u00f8dvendigt.<\/p>\n

Vi skriver dataene til hukommelsen fra donor-enheden.<\/p>\n

\"L\u00e6s
\n
\nVi lodder hukommelse og processor fra en donor, t\u00e6nder og gl\u00e6der os!<\/p>\n

\"L\u00e6s
\n
\nTak for din opm\u00e6rksomhed!
\n
Kilde: habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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