iPhone 3GS new botroom 06.15.00 BB problem

[iEagle88]

Oke here we go.
iPhone 3G was sim locked. I instaled iOs 4.2.1 and restored my iPhone 3GS. Than i used redsn0w to update the BB to 6.15.00. After it i tried to rerole to iOs 4.1 and my iPhone stucked. It just dont start. Its only on apple logo and after 2-3 mins it just restart and it starts again. I know that my BB was updated. Is there any way to fix it? Any suggestions?

[bondkt]

You said you tried to install ios 4.2.1, which means you would use the tether boot option.

To go back to ios 4.1 make sure you have tiny umbrella running and when its done, kick it out of recovery.

[rhygin]

Oke here we go.
iPhone 3G was sim locked. I instaled iOs 4.2.1 and restored my iPhone 3GS. Than i used redsn0w to update the BB to 6.15.00. After it i tried to rerole to iOs 4.1 and my iPhone stucked. It just dont start. Its only on apple logo and after 2-3 mins it just restart and it starts again. I know that my BB was updated. Is there any way to fix it? Any suggestions?

use redsnow again worked for me well at least iphone is updated and unlocked but still can't get any carrier but an ipod touch is beetter than a bricked iphone :-)

[Orby]

Tethered jailbreak. Your device requires USB intervention (e.g., redsn0w) to boot.

Restoring to 4.1 (if you have blobs) and re-jailbreaking will alleviate the issue.

[iphonefiend]

Tethered jailbreak. Your device requires USB intervention (e.g., redsn0w) to boot.

Restoring to 4.1 (if you have blobs) and re-jailbreaking will alleviate the issue.

I have iphone 3gs with new bootrom on 6.15 baseband. It's jailbroken and unlocked on 4.2.1. Is it possible for me to restore to stock 4.1 since apple is signing the signatures? Then just jailbreak from there?

[Orby]

I have iphone 3gs with new bootrom on 6.15 baseband. It's jailbroken and unlocked on 4.2.1. Is it possible for me to restore to stock 4.1 since apple is signing the signatures? Then just jailbreak from there?

If Apple's still signing it, yes. Your restore will end with a 10xx error if all goes well, that's expected behavior. Use TinyUmbrella or iRecovery (etc.) to kick out of the recovery mode. Jailbreak away from there.

PS: If Apple's still signing 4.1, please use TinyUmbrella to save your SHSH blobs with you and with Cydia if you haven't already done so. You'll thank yourself later if you do, trust me.

[iEagle88]

Thanks for your tips guys but nothing worked .
What else i can do?
Btw. I cant downgrade - even cant resore to official 4.2.1 becouse my BB was updated