Yuav ua li cas Downgrade Los ntawm iOS 15 mus rau iOS 14

Part 1: Peb yuav ua li cas ua ntej downgrading?

1. Them koj iPhone

Xyuas kom tseeb tias koj lub iPhone yog tag nrho them ua ntej downgrading raws li cov txheej txheem no yuav siv sij hawm ib co sij hawm, thiab koj lub xov tooj yuav raug tso tawm.

2. Tshawb xyuas koj lub iPhone qhov chaw cia

Raws li peb txhua tus paub, downgrading lossis upgrading iOS yuav tsum tau cia txaus. Nws yuav pab tau yog tias koj muaj chaw cia dawb txaus los rub tawm cov yam ntxwv sib txawv.

3. Thaub qab koj cov ntaub ntawv

Nws yog ib qho tseem ceeb rau backup koj cov ntaub ntawv kom tsis txhob poob tej ntaub ntawv tseem ceeb thaum lub sij hawm tus txheej txheem, yog li thov nco ntsoov backup koj iPhone los iPad cov ntaub ntawv nrog iTunes los yog iCloud. Tau kawg, koj tuaj yeem thov kev pab los ntawm 3rd-party program. Thiab yog tias koj nkees ntawm kev nrhiav cov kev daws teeb meem zoo tshaj plaws los thaub qab koj cov ntaub ntawv, Dr.Fone - Xov tooj thaub qab (iOS) tuaj yeem pab tau rau nws qhov hloov pauv tau. Nws yog sib xws thiab muab koj xaiv backup thiab restore xaiv.

Part 2: Yuav ua li cas rau downgrade los ntawm iOS 15 rau iOS 14?

Nov yog cov kauj ruam nrog rau qhov zoo thiab qhov tsis zoo:

1. Downgrade iOS 15 nrog iTunes

Koj tuaj yeem yooj yim downgrade koj iOS 15 nrog iTunes. Txij li thaum nrog kev siv iTunes app, koj tuaj yeem nruab downloaded firmware ntaub ntawv ntawm koj li, yog li no feature tso cai rau koj mus nruab ib tug laus version ntawm iOS firmware rau koj lub xov tooj. Yog li, koj tuaj yeem downgrade koj lub xov tooj mus rau koj nyiam version. Yog hais tias koj xav paub yuav ua li cas rau downgrade iOS 15 nrog iTunes, koj yuav pom tag nrho cov ntaub ntawv ntawm no.

Nov yog cov kauj ruam:

Kauj ruam 1 : Ua ntej tshaj plaws, koj yuav tsum mus ntsib IPSW lub vev xaib txhawm rau tshawb nrhiav cov firmware uas zoo tshaj plaws rau koj tus qauv ntaus ntawv iOS. Thov xaiv lub firmware version uas koj xav tau nyob rau hauv koj ntaus ntawv yuav downgraded. Download tau tam sim no.

Kauj ruam 2 : Ntawm koj lub PC tam sim no, qhib "iTunes" app. Tom qab ntawd, coj koj lub iOS no ntaus ntawv thiab siv lub lightening cable, txuas nws nrog lub PC.

Kauj ruam 3 : Tam sim no, nyob rau hauv lub iTunes interface, tsuas yog ntaus lub " Restore iPhone " khawm thiab tuav lub hloov khawm ntawm koj cov keyboard. Rau cov neeg siv Mac, koj yuav tsum siv tus yuam sij Option los tuav nws thaum nias lub pob "Restore iPhone".

Kauj ruam 4 : Thaum kawg, mus rau qhov chaw uas koj tau downloaded IPSW firmware thiab xaiv nws. Nws yog npaj rau nruab rau koj ntaus ntawv. Thaum koj pom tias lub firmware yog ntsia, koj iOS no ntaus ntawv yuav downgraded.

Tab sis qhov downside ntawm downgrading iOS 15 nrog iTunes yog tias tag nrho koj cov ntaub ntawv khaws tseg rau koj ntaus ntawv yuav raug deleted. Tsis tas li ntawd, lub firmware uas koj xav nruab yuav tsum tau kos npe los ntawm Apple. Nws tsis tuaj yeem nruab tsis tau kos npe firmware ntawm koj lub iPad lossis iPhone.

Yog li, yog tias koj xav paub yuav ua li cas rau downgrade iOS 15 yam tsis muaj iTunes, ces ntawm no yog cov kauj ruam:

2. Downgrade los ntawm iOS 15 rau iOS 14 yam tsis muaj iTunes

Kauj ruam 1: Disable "Nrhiav Kuv iPhone"

Rau qhov no, koj tsuas yog yuav tsum tau mus rau lub taub hau rau iPhone " Chaw ", ua raws li lub npe nyob rau sab saum toj ntawm lub vijtsam. Saib rau qhov "Nrhiav Kuv" kev xaiv thiab xaiv "Nrhiav Kuv iPhone. Nkag mus rau Apple ID thiab lo lus zais thaum nug thiab kaw qhov Nrhiav Kuv iPhone feature.

Kauj ruam 2: Download tau txoj cai Restore duab

Koj tuaj yeem rub tawm txoj cai rov qab duab rau cov laus uas koj txaus siab rau downgrade rau thiab rau koj tus qauv xov tooj.

Kauj ruam 3: Txuas koj ntaus ntawv iOS no nrog koj lub computer

Tom qab rub tawm tiav, tau txais koj lub cuab yeej iOS txuas nrog koj lub PC ntawm USB cable.

Kauj ruam 4: Qhib finder tam sim no

Piv txwv tias koj siv macOS 10.15 lossis tom qab lossis macOs Loj Sur 11.0 lossis tom qab ntawd. Yog tias nws tsis qhib rau koj lub cuab yeej iOS, koj tuaj yeem qhib lub finder app. Tam sim no ntawm lub npe ntawm koj iOS no ntaus ntawv nyob rau hauv "Qhov chaw" uas yog nyob rau hauv lub sidebar.

Kauj ruam 5: Cov kauj ruam tom ntej yog cia siab rau lub computer

Thaum koj nyem rau ntawm koj ntaus ntawv iOS no, koj yuav tsum ntseeg koj lub PC . Rau qhov no, koj yuav pom ib tug pop-up ntawm koj iPhone thov kom koj ntseeg. Coj mus rhaub rau "Trust" thiab sau tus passcode. Cov kauj ruam no tseem ceeb heev. Txwv tsis pub, koj yuav tsis muaj peev xwm ua kom tiav.

Kauj ruam 6: Nruab cov laus iOS no version.

Ua ntej koj downgrade, koj yuav tsum xyuas kom meej yog tias koj nyob rau ntawm lub " General " screen. Tam sim no, tsuas yog tuav lub "Option"/"Shift" tus yuam sij thiab xaiv "Kuaj rau Hloov Kho" lossis "Restore iPhone."

Thov nco ntsoov:

• Yog tias koj xaiv qhov kev xaiv yav dhau los, piv txwv li, " Kuaj rau Hloov Kho ," yuav tsis muaj kev cuam tshuam rau koj cov ntaub ntawv thaum lub sijhawm txo qis. Txawm li cas los xij, cov teeb meem tuaj yeem tshwm sim tom qab vim qhov kev txo qis yuav qhia qee qhov nyuaj nrog cov yam ntxwv hauv iPhone.
• Yog tias koj xaiv qhov kev xaiv tom kawg, qhov no yuav pib cov txheej txheem downgrading los ntawm kos. Koj yuav tau rov qab tau koj lub cuab yeej nrog iCloud thaub qab tom qab.

Thaum koj txiav txim siab xaiv qhov twg, koj yuav tau txais ib qho pop-up. Ntawm no, nyem rau ntawm cov duab rov qab los ua kom tiav cov txheej txheem.

Yog tias koj tab tom xav txog kev txo qis los ntawm iOS 15 yam tsis tau poob cov ntaub ntawv, ntawm no yog cov kev daws teeb meem.

3. Siv Wondershare Dr.Fone-Sysem Kho kom downgrade nyob rau hauv ob peb clicks

Lwm txoj kev yooj yim rau downgrade koj ntaus ntawv nyob rau hauv ob peb clicks yog siv wondershare Dr. Fone - system Kho. Cov cuab yeej no tuaj yeem txhim kho ntau yam teeb meem xws li lub vijtsam dawb, kho iPhone hauv hom rov qab , kho lwm yam teeb meem iOS; nws yuav tsis lwv tej ntaub ntawv thaum kho lub iOS no system teeb meem. Ntau yam txiaj ntsig ntawm nws yog:

• Nws kho koj iOS rov qab mus rau qhov qub hauv cov kauj ruam yooj yim.
• Tsis tas yuav siv iTunes yog tias koj xav downgrade lub iOS version.
• Kev sib raug zoo nrog txhua tus qauv iOS thiab versions.
• Kho txhua qhov teeb meem loj thiab me me hauv iOS xws li daig hauv Apple logo , dub lossis dawb npo ntawm kev tuag, thiab lwm yam.

Nov yog qhov koj tuaj yeem siv Dr.Fone - Kev Kho Kho (iOS) kom txo qis iOS 15 txog 14.

Nco tseg:  Thov mus saib ntawm  https://ipsw.me/product/iPhone  kom paub tseeb tias cov firmware tau tshaj yog muaj ua ntej downgrading.

Kauj ruam 1: Nruab thiab tso tawm

Ua ntej, rub tawm lub cuab yeej los ntawm nws lub vev xaib raug cai thiab tso nws ib zaug ua tiav. Tam sim no, xaiv "System Kho" los ntawm lub qhov rais loj.

Kauj ruam 2: Txuas ntaus ntawv

Tom qab ntawd, txuas koj iPhone, iPad, los yog iPod kov rau koj lub computer nrog nws cov xob laim cable. Thaum Dr. Fone ceeb toom koj ntaus ntawv iOS no, koj tuaj yeem pom ob txoj kev xaiv: hom hom thiab Advanced hom.

Tus qauv hom pab koj daws teeb meem ntau yam iOS no yooj yim yam tsis muaj kev ntshai ntawm cov ntaub ntawv poob. Txawm li cas los xij, nrog Advanced Hom, cov teeb meem loj tuaj yeem kho tau. Txhawm rau kom tau txais qhov txo qis ua tiav, peb yuav xaiv rau Standard Hom.

Kauj ruam 3: Pib qhov txheej txheem

Koj yuav pom cov ntaub ntawv ntaus ntawv ntawm lub PC screen. Yooj yim txheeb xyuas nws thiab ntaus rau ntawm "Start" khawm kom txav mus tom ntej.

Kauj ruam 4: Pib downloading iOS firmware

Cov cuab yeej pib tshawb xyuas lub iOS firmware uas koj lub cuab yeej xav tau. Txhawm rau txo qis koj lub cuab yeej iOS los ntawm 15 mus rau 14, koj yuav tsum xaiv qhov xav tau firmware pob version ntawm lub pob "Xaiv". Nyob rau tib lub sijhawm, nws yuav pib rub lub pob firmware uas koj xaiv. Thov khaws lub cuab yeej txuas nrog lub sijhawm tag nrho.

Kauj ruam 5: Firmware txheeb xyuas

Tam sim no qhov kev pab cuam yuav pib txheeb xyuas lub firmware.

Thaum nws tau txheeb xyuas, nyem rau ntawm "Kho Tam Sim No." Txoj kev no, nrog rau kev txo qis hauv iOS, lub cuab yeej yuav kho qhov tsis sib xws, yog tias ua rau koj lub cuab yeej zoo dua li ua ntej.

Part 3: Downgrade lossis upgrade?

Peb paub cov theem ntawm kev zoo siab txog qhov tseeb iOS firmware uas koj muaj. Txawm li cas los xij, muaj kev pheej hmoo tias qhov tseeb iOS version yuav tsis ruaj khov li iOS 14. Thiab pom tau tias, qhov teeb meem ntawm seb puas yuav downgrade lossis upgrade yog noj koj li. Yog li ntawd, ntawm no yog ib daim ntawv teev cov pros thiab cons rau downgrading koj iOS no 15 rau iOS 14.

Qhov zoo:

• iOS 14 yog twv yuav raug hu ruaj khov dua li qhov tseeb.
• Koj yuav tsis tau ntsib tej software glitches uas yuav tshwm sim nyob rau hauv qhov tseeb iOS no.

Cons:

• Koj tuaj yeem poob cov ntaub ntawv yog tias koj lub cuab yeej tsis thaub qab.
• Koj yuav tsis tuaj yeem siv cov yam ntxwv tshiab kawg ntawm iOS 15.
• Siv ib tug laus version ntawm iOS no tsis yog ib txwm lom zem.
• Kev siv rau lub tshiab iOS 15 interface tej zaum yuav tsis xis nyob me ntsis.

Kab hauv qab

Yog li ntawd, peb tuaj yeem xaus tias muaj ntau yam cuab yeej thiab txoj hauv kev uas koj tuaj yeem txo qis koj iOS 15 mus rau iOS 14. Tab sis qee txoj hauv kev nyuaj rau siv rau txhua tus neeg tsis yog kev siv tshuab. Nyob rau tib lub sijhawm, muaj ob qhov zoo thiab qhov tsis zoo ntawm kev txo qis iOS 15 nrog lossis tsis muaj iTunes. Piv txwv li, yuav muaj cov ntaub ntawv poob, los yog koj lub cuab yeej yuav incompatible nrog ntau nta.

Yog hais tias koj xav mus downgrade koj ntaus ntawv yam tsis muaj teeb meem thiab nrog yooj yim clicks, ces wondershare Dr. Fone - System Kho yog heev pom zoo qhov twg koj yuav tau yooj yim downgrade koj iOS no 15 nrog ib tug ob peb clicks. Tsis tas li ntawd, nws tuaj yeem kho cov teeb meem hauv hom qauv, hom siab heev, nrog rau ntau yam txiaj ntsig.