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Downgrade koj iPhone 3G rau iOS no 3.1.3

Peter Binder
25

Nyob rau hauv cov lus qhia hnub no, peb yuav qhia koj yuav ua li cas downgrade koj iPhone 3G los ntawm iOS 4 mus rau iOS no 3.1.3, uas yuav tshwj xeeb tshaj yog txaus siab rau cov neeg siv uas tsis tuaj yeem saib lawv iPhone 3G maj mam dhau los ua lub xov tooj siv tsis tau. Nws yog qhov tseeb tias iPhone 3G tsis tau zoo heev nrog iOS 4 - apps siv sijhawm ntev heev los tso tawm thiab feem ntau poob thaum lub sijhawm thauj khoom. Meanwhile, iOS 4 yuav tsum yog tus ceev tshaj iOS puas tau.

Rau cov tswv iPhone 3G, nws tsis coj qhov tshiab (folders, cov ntawv ceeb toom hauv zos, txhim kho e-mail account), yog li qhov kev txo qis yuav tsis "mob" lawv ntau npaum li ntawd. Hmoov tsis zoo, cov tshiab app hloov tshiab cuam tshuam nrog iOS 4 tau tso tawm txhua hnub, thiab qee qhov ntawm lawv tsis sib xws nrog iOS dhau los lawm. Yog li ntawd, yog tias koj txiav txim siab downgrade mus rau ib tug qis version ntawm iOS no, ib co ntawm koj nyiam thiab siv daim ntawv thov tej zaum yuav tsis ua hauj lwm tag nrho, thiab cia siab tias koj yuav tau kawg poob iBooks. Yog tias koj tseem txiav txim siab downgrade, ntawm no yog cov lus qhia yuav ua li cas.

Peb yuav xav tau:

Ntawm no yog yuav ua li cas:

1. Tshawb xyuas koj cov ntaub ntawv thaub qab

  • Yog tias koj tsis xav poob tag nrho koj cov ntaub ntawv, xyuas koj cov thaub qab qub. iOS 4 tau tso tawm rau lub Rau Hli 21, yog li txhua qhov thaub qab mus txog hnub ntawd yog rau cov iOS qis dua.
  • Hmoov tsis zoo, iTunes tsis khaws ntau tshaj 1 thaub qab rau ib lub cuab yeej muab, yog li yog tias koj hloov kho koj iPhone 3G rau iOS4 thiab tom qab ntawd synced nws, tej zaum koj yuav tsis muaj thaub qab nrog iOS 3.1.3. Cov thaub qab tuaj yeem pom hauv daim nplaub tshev: tsev qiv ntawv / Daim Ntawv Thov Txhawb / MobileSync / thaub qab.

2. Cov ntaub ntawv khaws cia

  • Txuag tag nrho cov duab koj thaij, txwv tsis pub koj yuav plam lawv mus ib txhis. Yog tias koj tsis tuaj yeem rov qab tau cov ntaub ntawv los ntawm kev thaub qab, koj yuav tau teeb tsa lub iPhone li "tsim li lub xov tooj tshiab", uas txhais tau hais tias koj yuav tsis muaj cov ntaub ntawv ntawm nws. Yog li ntawd, kuv xav kom koj synchronize tag nrho cov ntawv los yog xa lawv los ntawm email, kuj coj screenshots ntawm lub desktop kom koj paub yuav ua li cas koj muaj lub icons teem.

    3. Ua "hloov kev yuav khoom" ntawm koj lub cuab yeej hauv iTunes

    • Yog tias koj yuav suab paj nruag lossis apps ncaj qha rau koj lub iPhone, ua "hloov kev yuav khoom" hauv iTunes kom tau txais cov kev yuav khoom rau koj lub computer.

    4. Download RecBoot thiab iOS 3.1.3 firmware duab

    • Raws li tau hais los saum no, koj yuav xav tau daim ntawv thov RecBoot dawb thiab iPhone 3G iOS 3.1.3 firmware duab los ua qhov kev txo qis. RecBoot xav tau Intel Mac version 10.5 lossis siab dua.

    5. DFU hom

    • Ua DFU hom:
      • Txuas koj iPhone rau koj lub computer thiab tso iTunes.
      • Tua koj iPhone.
      • Tuav lub hwj chim khawm thiab lub tsev khawm tib lub sijhawm rau 10 vib nas this.
      • Tom qab ntawd tso lub hwj chim khawm thiab txuas ntxiv tuav lub khawm Tsev rau lwm 10 vib nas this. (Power khawm - yog lub pob rau tso lub iPhone mus pw, khawm Tsev - yog lub pob hauv qab).
    • Yog tias koj xav tau qhov kev pom pom ntawm yuav ua li cas nkag mus rau hauv DFU hom, ntawm no yog qhov video.
    • Tom qab ua tiav kev ua tiav ntawm DFU hom, ceeb toom yuav tshwm sim hauv iTunes tias qhov kev pab cuam tau kuaj pom iPhone hauv hom rov qab, nyem OK thiab txuas ntxiv nrog cov lus qhia.

    6. Cuam Tshuam

    • Tuav Alt thiab nyem Restore hauv iTunes, ces xaiv lub downloaded iPhone 3G iOS 3.1.3 firmware duab.
    • Qhov rov qab yuav pib thiab tom qab qee lub sijhawm koj yuav tau txais qhov yuam kev. Thov tsis txhob nyem qhov yuam kev no (tsawg kawg tsis yog rau tam sim no). Tom ntej no, "Txuas rau iTunes" yuav tshwm sim ntawm iPhone, tsis quav ntsej qhov ntawd thiab.

    7. RecBoot

    • Tom qab pom qhov yuam kev uas twb tau hais lawm, uas koj tseem tsis tau nyem, qhib RecBoot nplaub tshev, qhov twg koj yuav pom peb cov ntaub ntawv - ReadMe, RecBoot thiab RecBoot Tawm Tsuas. Khiav qhov kawg hais RecBoot Tawm Tsuas. RecBoot yuav qhia koj ib qho Exit Recovery Mode khawm tom qab tso tawm.
    • Nyem no khawm, ces cov "Txuas mus rau iTunes" lus yuav thaum kawg ploj ntawm koj iPhone.
    • Tam sim no koj muaj peev xwm unclick lub twb hais yuam kev nyob rau hauv iTunes.


    8. Chaw

    • Tam sim no iTunes yuav nug koj tias muaj ib tug tshiab version ntawm iOS no rau koj lub xov tooj, teb nws nrog lub Ncua tseg khawm. Tom qab ntawd teeb lub iPhone xws li "teeb ​​ua lub xov tooj tshiab" lossis rov qab los ntawm kev thaub qab (yog tias koj muaj ib qho). Txawm li cas los xij, tej zaum koj yuav tsis muaj qhov thaub qab, yog li qhov kev xaiv tau meej.
    • Yog hais tias koj tsis xav kom iTunes qhia rau koj tias ib tug tshiab version ntawm iOS no tau raug tso tawm thiab seb koj puas xav rau nruab nws, tsuas yog kos "Tsis txhob nug kuv dua" ua ntej nias lub Ncua tseg khawm.

      Tam sim no txhua yam koj tau ua yog sau koj lub iPhone nrog cov ntawv thov, suab paj nruag, hu, duab, thiab lwm yam.

      Tau qhov twg los: www.maclife.com

      Qhov chaw
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      Hais txog



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