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Go Back   GSM-Forum > GSM & CDMA Phones / Tablets Software & Hardware Area > iPhone ,iPod & iPad (Apple Inc. Products) > iPhone 4 / iPhone 4S

iPhone 4 / iPhone 4S iPhone 4 / 4S

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Old 05-27-2012, 13:27   #1 (permalink)
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can not erase all contents from iphone 4s


Hi All,

i dont know what i have done - i have jailbreak on 5.1.1 but there were some error and i would like to complete erase all data - i dont know i have messed up and i cannot do anything while i m trying to restore it error 21 coming up and i cannot do anything now

please help me - any comments appreciated

its stuck on spinning wheel with blank screen

Last edited by gocompare; 05-27-2012 at 13:34.
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Old 05-27-2012, 13:47   #2 (permalink)
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Moderator - No Help from you either - if one of your forum's member stuck - cant you help them?
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Old 05-27-2012, 14:58   #3 (permalink)
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From my experience if the device has been jailbroken you can't use 'Erase all content and settings' option since iPhone will freeze during the process. You can use this option safely only if the device is clean (ie. without jailbreak). Otherwise you can make backup of photos & video manually (copy-paste files from My Computer) and for contact backup use iTunes -> MS Outlook.. Also, if you need to backup SMS, Calendar, Notes use iTools..

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Old 05-27-2012, 15:02   #4 (permalink)
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To restore your iPhone you need to put it in DFU mode, open iTunes, hold SHIFT button and click on Restore button and select 5.1.1 IPSW for the corresponding iPhone model from here:
iClarified - iPhone - Where To Download iPhone Firmware Files From
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Old 05-27-2012, 15:34   #5 (permalink)
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Quote:
Originally Posted by gocompare View Post
Hi All,

i dont know what i have done - i have jailbreak on 5.1.1 but there were some error and i would like to complete erase all data - i dont know i have messed up and i cannot do anything while i m trying to restore it error 21 coming up and i cannot do anything now

please help me - any comments appreciated

its stuck on spinning wheel with blank screen
Try a Hard reset. Home button + power till you see screen boot up. 200% solution

Iphone 4s always goes n emergency boot mode so if it works let me know. Many a times people do it .

It doesnt work with iphone 4 though.
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Old 05-29-2012, 00:45   #6 (permalink)
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i have restored it and use different computer but i have lost all my data - i have done backup but when i have restored from backup itunes say data corrupted - thank you very much for all your help
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Old 05-29-2012, 03:05   #7 (permalink)
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Quote:
Originally Posted by gocompare View Post
i have restored it and use different computer but i have lost all my data - i have done backup but when i have restored from backup itunes say data corrupted - thank you very much for all your help
Did you not save any data on iCloud?
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Old 07-10-2016, 10:49   #8 (permalink)
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Actually, if you delete file with a simple delete operation,all those deleted files and other important personal data won’t actually be erased from iPhone,because those deleted files still exist in iPhone or could they be recovered by some ios data recovery software later.

To deleted photos, videos, and other important personal data on iPhone, iPad,or erase deleted data on iPhone permanently,you must to use a thrid-part ios data eraser tool, which allows you permanently delete everything from iPhone,including photos, videos, contacts, text messages, Apple ID and other personal information,even no data recovery can restore them back. It works well with iPhone SE, iPhone 6s(plus), iPhone 6(plus), iPhone 5s, iPhone 5, iPhone 4s/4, iPhone 3gs, iPad Pro, iPad Air 2/1, iPad mini 4, iPad 4/3/2/1 ect.
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Old 08-06-2016, 06:45   #9 (permalink)
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How reset iphone 4 . When i click on reset nothing happend
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