Unable to restore iPhone 3gs bb 6.15.00

[Jozefa]

I have iPhone 3gs with bb 6.15.00 but it’s stuck on apple logo. I try to jailbreak it with green poison rc5 and rc6, iam try to "just both tethered now" with redsn0w b5 b6 and all this doesn’t help. May be its wrong firmware.

[BansiJ]

First your device put in dfu mode.then make use of tiny umbrella and start TSS server. Then restore custom firmware.

[Ceesar]

Try to upgrade your Software. Perform it when your jail breaking in firmware 4.1. May it will help to overcome your problem.

[Kickapoo]

Try This.

1. Restore iTunes
2. Jailbreak with redsn0w
3. update baseband

[Odalis]

No need to open and disconnect battery anyhow. Just put your device in dfu mode with redsn0w to accept custom firmware. And restore it with custom firmware which preserves bb (not update bb because it’s already 6.15).I did many device with this method 4.2.1.

[Algonkin]

Try Following Steps.

1. Turn off your phone and connect it to pc
2. Open redsnow and opt for original firmware
3. Press enter when newboot
4. Press enter in Dfu mode
5. Click next and follow the instructions

[Delaware]

If you’re receiving White Cydia Icon just switch off your phone and open redsnow choose Stock firmware 4.2.1 and opt for the alternative “Just boot tethered right now” and click “next” and then go after the screen then you will perceive the cydia. in conclusion you can perceive your phone is with your old Baseband. Now just you can install the ultrasn0w 1.2 from Cydia

[Erie]

I got iPhone 3gs stack at recovery mode. Because I already jailbreak and unlock it bb 6.15

1. Restore with iTunes
2. Make use of GreenPoissi0n but hold home button until iPhone show text
3. Install Cydia

[Fox28]

Will the iPhone still have the 6.15 BB in it after doing this, my iPhone is stuck in dfu mode after installing 4.2.1 sn0wbreeze custom FW.I don’t desire to just revitalize my iPhone I necessitate it to be unlockable (UNtethered).ANY help would be appreciated.

[Huron]

Even if it is on dfu mode. Go ahead with the redsnow pwnage.as it will absolutely help u revive your iPhone furthermore. Yes the BB will be at 6.15 but further patches will be needed so that redsnow can change phone firmware.If you require further help than do let me know. i will be glad to help you on this topic.

[Karleen]

May be this will help you:

1. Open the latest redsn0w
2. browse 4.1 restore firmware
3. Just enter DFU mode
4. Open iTunes
5. browse 4.1 custom restore to orginal fw
6. press rest

ore