Iphone 3gs Error 21 White Screen Fix
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Fix Error 21
iPhone 4 Unlock iPhone 4s Ultrasn0w News IOS Wiki Fix iTunes Error 21 During Custom IPSW Restore [How-To Guide]By Ben Johnson last updated June 27, 2014
Iphone 3gs White Screen Solution
Share on Twitter Share on Google+ Share on Facebook Share on LinkedIn Jailbreaking your iPhone, iPod Touch or iPod using custom IPSW made by PwnageTool or Sn0wbreeze requires a full firmware restore using iTunes. During the restore process, if you encounter Error 21, it means that you are trying to restore custom IPSW using the error 21 ipad recovery mode. To fix this issue, you must put your iDevice into DFU mode.DFU or Device Firmware Upgrade mode allows all iDevices to be restored from any state. The actual difference between recovery and DFU mode is that when you put your iDevice into DFU mode, it do not loads iBoot automatically. When you put your iPhone in recovery mode, it loads iBoot which makes sure that the firmware you are trying to restore is greater or equal to the current firmware.To fix iTunes error 21, you must put your iDevice into DFU mode using the following instructions:Connect your iDevice to your PC or Mac via USB cable and launch iTunes.Hold down the Home+Power button for 10 seconds.After 10 seconds, release the Power button but keep holding the Home button until iTunes detect your iPhone in recovery mode.Once your iDevice is in DFU mode, you should see nothing on its screen. It should be completely blank.Even if your iDevice is in DFU mode, iTune
Close × Menu Repair Guides Answers Forum Parts & Tools Store Teardowns Translate Join Log In GO iFixit Fast Order Create a Page Edit Billing Info Order History Logout Join Log In Repair Guides Answers Forum apple error 11 Parts & Tools Store Teardowns Translate « Back to Answers Index 46184 iPhone unknown error 21 3G Second generation of iPhone. Model A1241 / 8 or 16 GB capacity / black or white plastic back. Repair iphone 3gs white screen after replacing lcd is more straightforward than the first iPhone. requires screwdrivers, prying, and suction tools. connections display usb cable 1485 Questions View all markeeinsik Rep: 1 1 2 Posted: 03/08/2011 Options Permalink History Subscribe Unsubscribe http://jaxov.com/2011/03/how-to-fix-itunes-error-21-during-custom-ipsw-restore/ Weird itunes error 21, cannot restore. i opened my iphone(4.0.2 jailbroken) and tried to clean it... but when i turned it on, my camera wont open so i opened it again and got the error 21... since then ive been trying to restore it and end up with errors 21, 14, 1601. mostly 21.. but one time ive managed to restore it to 4.2.1 and https://www.ifixit.com/Answers/View/46184/Weird+itunes+error+21,+cannot+restore. got stuck with the jailbreak(redsnow).. sometimes i can get pass the restore progess bar but it suddenly reboots after 30-50%.. it gives a white screen then error 21 pops out from itunes.. sometimes the white screen has green vertical lines or blue flashing... i dont know what to do... please help me.. i also encountered error 9 but most of the error is 21... what i do to restore: 1. plug iphone to usb (which by the way, turns on once i plug it) i cannot switch it on/off since i always end up at the recovery mode every time i turn it on... also, sometimes when i switch it on, i only get a blank black screen... no apple logo. 2. put iphone to dfu mode... method 1: hold power and home while the iphone is on and wait unitl it shuts off and count from 1 to 7. then itunes reads it and i go with the restore process but when the phone is about to get to the apple logo screen where the wheel and progress bar shows up... its suddenly reboots and i get a white screen plus error 21
Close × Menu Repair Guides Answers Forum Parts & Tools Store Teardowns Translate Join Log In GO iFixit Fast Order Create a Page Edit Billing Info Order History Logout Join Log In Repair Guides Answers Forum Parts https://www.ifixit.com/Answers/View/45530/3GS+-+White+Screen+of+Death & Tools Store Teardowns Translate « Back to Answers Index 45530 iPhone 3GS Revamped version of the iPhone 3G with faster processing speeds. Repair of this device is similar to the 3G, and requires simple screwdrivers and prying tools. Model A1303 / 16 or 32 GB capacity / black or white plastic back. white screen death 1931 Questions View all stevewhaley Rep: 13 1 1 error 21 Posted: 03/01/2011 Options Permalink History Subscribe Unsubscribe 3GS - White Screen of Death I replace the display panel on a 3GS with relative ease. PC and iTunes recognizes device and was able to sync as well. However all I get is the white screen. I have tried the hard reset (Power/Home button for 10 secs) and nothing apparently happens at all. I have removed panel and error 21 iphone rechecked seating of connections too. Anyone out there have any advice as where to go from here. I purchased a used display panel from ifixit.com and assume it is working fine. Thanks Steve Answer this question I have this problem too Subscribed to new answers Is this a good question? Yes No Voted Undo Score 1 Cancel Add a comment 0/1024 Cancel Post comment Are you sure you want to delete this zzzzzz? Cancel 10 Answers Filter by: Most Helpful Newest Oldest Most Helpful Answer Paul L Daniels Rep: 61 3 Posted: 09/13/2012 Options Permalink History Try this solution... Press and hold the home button, then the up-volume button, then the sleep/power button (so all three buttons are now pressed and held) --- it takes a while, but the white screen will go away and then after another 10 seconds or so (still holding btw!) the apple logo will come up, release the buttons and then wait, it'll boot normally again in a minute or two. EDIT: Just tried it on my own 3GS here which decided to go into the WSoD - alas, doesn't seem to be working this time, not sure though i