Thursday, November 18, 2010

Upgrade 3GS to 4.1 without Baseband upgrade


Only Os 4.1 update in the middle of the USB cable instead of the update without updating the baseband to find a better way.

-
Download iOS 4.1 ipsw for iPhone 3Gs here. and exstract with winrar.
- Delete file 018-7073-079.dmg in the archive. And save file.
-
Open iTunes and restore- shift the IPSW. Do not exclude the iPhone at any time, just wait until XX error when trying to upgrade (the file that deleted from the IPSW file is actually a baseband firmware)
- When everything is complete, phone restart and wait for activation.

If the phone restarts in recovery mode, trying kick recovery (iREB)
If it fails, you wrong, up is done with care have tried to process ...

Make sure the correct file and ipsw file! Do not blame me if you accidentally update baseband

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