Muaj ntau cov neeg tau hnov txog cov khoom siv kua Apple, tiam sis, iTunes yog ib hom kev pab cuam uas yuav luag txhua tus neeg siv, thaum ua hauj lwm nrog, sib ntsib ib qho yuam kev hauv kev ua haujlwm. Tsab ntawv xov xwm no yuav tham txog kev tshem tawm qhov yuam kev 21.
Yuam kev 21, raws li ib txoj cai, tshwm sim vim kev kho cov khoom lag luam ntawm Apple kua. Hauv qab no peb yuav xyuas cov hauv paus ntsiab lus uas yuav pab daws tau qhov teeb meem tom tsev.
Txoj kev mus rau troubleshoot yuam kev 21
Method 1: Hloov iTunes
Ib qho ntawm feem ntau yog ua rau feem ntau tsis thaum ua haujlwm nrog iTunes yog los kho qhov kev pab cuam rau qhov tseeb muaj version.
Txhua yam koj yuav tsum ua yog xyuas iTunes tshiab. Thiab yog tias pom muaj tshiab, koj yuav tsum nruab lawv, thiab rov qab qhib lub tshuab computer.
Method 2: lov tes taw antivirus software
Qee cov antiviruses thiab lwm cov kev pabcuam tivthaiv yuav siv qee yam ntawm kev ua haujlwm hauv iTunes rau kev ua haujlwm, thiab yog li ua haujlwm rau lawv txoj haujlwm.
Yog xav paub qhov no qhov muaj tseeb ntawm qhov ua yuam kev 21, koj yuav tsum tau lov tes taw rau lub sijhawm ua haujlwm, ces pib iTunes thiab kos rau kev ua yuam kev 21.
Yog hais tias qhov yuam kev no ploj mus, ces qhov teeb meem no yeej nta nyob rau hauv cov kev pab cuam thib peb uas thaiv blocked iTunes. Hauv qhov no, koj yuav tsum mus rau qhov chaw vev tse thiab ntxiv iTunes mus rau daim ntawv teev cov kev zam. Tsis tas li ntawd, yog tias qhov no yog qhov tseem ceeb, koj yuav tsum tau lov tes taw network.
Txoj kev 3: hloov USB cable
Yog hais tias koj siv ib tug tsis yog thawj los yog kab mob USB-cable, ces feem ntau yuav nws yog nws leej twg ua rau qhov yuam kev 21.
Qhov teeb meem yog tias txawm non-thawj cables uas tau ntawv pov thawj los ntawm Kua tej zaum kuj ua haujlwm tsis yog nrog lub cuab yeej. Yog tias koj lub xov tooj muaj kab, ua twist, oxidations, thiab lwm yam kev puas tsuaj, koj yuav tsum hloov lub cable nrog tag nrho thiab ib txwm yog ib qho.
Txoj kev 4: Hloov tshiab ntawm lub Xeev
Hom no tsis tshua muaj kev pab daws qhov teeb meem nrog rau kev ua yuam kev 21, tab sis nws muaj npe nyob rau hauv lub website Apple lub website, uas txhais tau hais tias nws yuav tsis raug tshem tawm hauv daim ntawv.
Rau cov qhov rai 10, nias lub khawm tseem ceeb Yeej + Kuvqhib qhov rais "Kev xaiv"thiab ho mus rau seem "Hloov tshiab thiab kev ruaj ntseg".
Nyob rau hauv lub qhov rais qhib, nias ntawm khawm. "Kos rau cov kev hloov tshiab". Yog tias ntawm daim tshev, cov lus pom muaj tshiab, koj yuav tsum tau nruab lawv.
Yog tias koj muaj qhov yau dua ntawm qhov rais, koj yuav tsum tau mus rau "Control Panel" menu - "Windows Update" thiab kos rau lwm yam tshiab. Nruab txhua yam tshiab, nrog rau cov kev xaiv yeem.
Method 5: Restore cov cuab yeej ntawm DFU hom
DFU - Kua cov cuab yeej siv thaum muaj xwm ceev, uas yuav tsum tau teeb meem rau lub cuab yeej. Hauv qhov no, peb yuav sim muab tus ntaus ntawv mus rau hauv DFU hom, thiab tom qab ntawd rov qab los ntawm iTunes.
Ua li no, ua kom tag nrho koj lub iPad ntaus ntawv, txuas mus rau koj lub computer siv USB cable thiab tso iTunes.
Yuav tsum nkag mus rau hauv cov cuab yeej DFU, koj yuav tsum tau ua raws li nram no: tuav lub hwj huam thiab tuav peb lub vib nas this. Tom qab ntawd, yam tsis tau tso thawj qhov tseem ceeb, tuav lub "Hauv Tsev" tseem ceeb thiab tuav ob lub pob rau 10 feeb. Tom qab ntawd koj tsuas yog yuav tsum tau tso ntawm lub hwj chim, tab sis txuas ntxiv kom "Lub Tsev" kom txog rau thaum koj lub cuab yeej raug kuaj pom los ntawm iTunes (lub qhov rais yuav tsum tshwm sim nyob rau hauv kev tshuaj ntsuam, raws li qhia hauv screenshot hauv qab no).
Tom qab ntawd, koj yuav tsum tau pib ntaus rov qab los ntawm kev khawm rau qhov tsim nyog khawm.
Txoj kev 6: ua kom tus ntaus ntawv
Yog hais tias qhov teeb meem nyob rau hauv kev lag luam ntawm Apple gadget lub roj teeb, ces qee zaus nws yuav pab daws tau qhov teeb meem ntawm tag nrho them tus nqi kom txog li 100%. Ua tus them mus rau qhov kawg, rov sim ua qhov rov qab los sis kho dua tshiab.
Thiab nyob rau hauv xaus. Cov no yog cov hau kev yooj yim uas koj tuaj yeem ua tom tsev los daws teebmeem 21. Yog tias qhov no tsis pab koj - tus ntaus ntawv yuav xav tau kev kho, vim hais tias tsuas yog tom qab kev kuaj mob, tus kws kho mob tshwj xeeb yuav muaj peev xwm hloov cov khoom puas, uas yog qhov teeb meem nrog lub cuab yeej.
