Downgrade From 3.0?

Jun 20, 2009
1
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0
#1
So I upgraded to the 3.0 OS on my 3G iPhone but my prepaid data plan stopped working I heard that this was happening but is there anyway that it could have been caused by me upgrading the firmware? And if that is the cause could I go back to the 2.2.1 firmware?

Thanks
 

Adam1389

Member
Silver
Nov 20, 2008
588
1
18
Ilwaco, WA
#2
Could be the firmware. And yep, you can go back to 2.2.1, there's a thread on here about how to do it. Pretty easy to do, and works.
 

alvarezyx

New Member
Jun 18, 2009
7
0
0
#3
Adam1389

Where can I find the thread to download your firmware from 3.0 back down to 2.2.xxx

Let me know please.......
 

Adam1389

Member
Silver
Nov 20, 2008
588
1
18
Ilwaco, WA
#4
Download the 2.2.1 firmware from your favorite umm, source. Download QuickPWN for the 2.2.1, open iTunes, and Shift Click restore, select the firmware file, and let iTunes do the restore. You will get error 1013. Exit iTunes, open QuickPWN and follow the directions. The iTunes error won't let your phone get out of DFU mode, thats where QuickPWN comes in, it forces it out.