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OK here is the method to activate your iPhone with iTunes if you have a factory unlocked iphone after downgrading to 3.1.2 1. Downgrade using method described here http://modmyi.com/forums/3g-s-downgr...ecid-shsh.html 2....
03-01-2010, 12:23 AM #1Downgrade 3GS from 3.1.3 to 3.1.2 & activate with iTunes
OK here is the method to activate your iPhone with iTunes if you have a factory unlocked iphone after downgrading to 3.1.2
1. Downgrade using method described here [Howto] Setup local 3GS restore verification server (ECID SHSH)
2. Jailbreak with redsn0w (It will hacktivate your phone & you will have no signal)
3. Now restore again using custom ipsw of 3.1.2 made using no activation option
4. Restore will finish normally now (without any 1015 error) & iTunes will normally activate your iphone.. Enjoy :-)
03-01-2010, 03:33 PM #2
That doesn't work for phones with the new bootrom, which the majority of people have. Just saying.
03-01-2010, 10:11 PM #3
Fow windows users (sorry OSX guys, borrow a friends REAL computer), using QuickPwn 2.2 after step one to pull it out of recovery mode is easier, faster, and works with all 3G[S] unlike the custom firmware.
04-14-2010, 01:17 AM #4
I'm with you looi3, when I hit the 1015 error I ram Quickpwm2.2 then backed up n synced, and Blackra1ned, worked like magic
04-14-2010, 07:09 AM #5
is quickpwn 2.2 is compatible in 3GS with old bootrom?
04-14-2010, 07:18 AM #6
Yep, mines week 36, old bootrom, worked a treat,I just blackra1ned it after restore from back up and syc and then welcomed Cydia back with open arms
04-14-2010, 12:23 PM #7
I never had my phone jailbroken and I now have 3.1.3, how can I downgrade as it asks for an old schh?
04-14-2010, 12:29 PM #8
04-14-2010, 12:57 PM #9
No afraid you can't.