iPhone not work after downgrade

Pramodh · Nov 16, 2011

Hi,

I saw a tutorial online and downgraded my ios from 4.3.5 to 4.3.3 for a tethered jailbreak on my iphone 4. since then the phone would not work(no display,no apple logo at start, no connect to itunes after dfu, nothing, just a black screen) I tried kicking it out of recovery loop and reinstalling ios4.3.5 and failed. I tried tinyumbrella, ireb, itunes restore to ios 5.0.1 and everything possible to fix my iphone 4 .. but all failed and my phone would not work(no display). i also looked online and they said llb would be missing . If any of you could help me fix this issue and get my phone to work on any ios, would be great, . Thanks in advance. Please please help .

-Pramodh

f4780y · Nov 16, 2011

Follow this guide and let us know how you get on...

http://www.iphoneforums.net/forum/h...afe-method-restore-current-version-ios-26019/

Make sure you address all the steps. They are important. If you still get an error message make sure you tell us exactly which error code comes up.

Good Luck.

Pramodh · Nov 20, 2011

Hi, f4780y

i just kept getting different error codes every time .. i checked for a fix online and a different error code would come up. so i gave up and did an update and restore on a mac .. it worked, but a gevey sim would not work, even after jailbreak.

f4780y · Nov 20, 2011

Pramodh said:
Hi, f4780y

i just kept getting different error codes every time .. i checked for a fix online and a different error code would come up. so i gave up and did an update and restore on a mac .. it worked, but a gevey sim would not work, even after jailbreak.

Did you read the warning at the top of the tutorial? You didn't mention unlock till now, but if you upgraded to 5 without preserving your baseband you are out of luck. There is no way to unlock ios5 basebands with Gevey yet. It is impossible.