BUT KEEP IN MIND THAT MINE WAS ON OLD BASEBAND OF iPhone 3GS with iPad BaseBand 6.15.00 and iOS 6.1.6. Now enough story. I did a FRESH iTunes restore for the phone and use redsn0w to downgrade ipad baseband from 6.15.00. Then jailbreak normally and install ultrasn0w. Apr 07, 2014  able to get it to work. Iphone 3gs new boot rom. Iphone was on 6.1.3, tethered. Update with itunes to 6.1.6. Lost network. Followed instructions, but repeated 2.1 to 2.9 with 2.8 install cydia and downgrade from ipad baseband before proceeding with step 3. Now working fine. But it did take 2 days to get it working by experimenting on the steps to take. Thanks a lot.

/filemaker-pro-advanced-1403.html. These are guidelines on how tó downgrade your iPhoné 3GH or iPhone 3G's baseband from the iPad's i9000 06.15 baseband to 05.13.04 using RedSn0w for Home windows. The Mac version of this tutorial can be found here.Generally you’d have the 06.15 baseband if you unlock with ultrasn0w but up to date your iPhone baséband past 05.13.04.

With this new capability, you can right now downgrade specifically from 06.15 to 05.13.04 (also if you certainly not had 05.13.04 on that gadget before). This provides you the best of both worlds: ultrasn0w unIock compatibility and á normal iPhone baseband with full Gps navigation and the ability to make use of stock IPSWs once again.Stage OneCreate a brand-new folder on your desktop computer called Pwnage.In the folder place the present firmware of your device (which can be downloaded from ) and the most recent edition of RedSn0w (from ).Herb the RedSn0w go document by dual clicking it.Stage TwoLaunch the redsn0w program from the redsn0watts folder we removed earlier.