3GS, IOS4.2.1 baseband 06.15 show Itune sign

[Crystal-RX]

Hello all,

I need some expert advice on this issue.

I jailbreaked & unlocked my 3GS 4.2.1 with Redsn0w, updating to Ipad baseband 06.15 and then unlocked it with Ultrasn0w 1.2. Everything work fine. I forgot to tell my wife that it is tethering jailbreak, she accidently turn off the phone. now it won't boot up. i tried it several time to use redsn0w to boot up and it keeps showing the USB cable and Itune sign.

I even jailbreak it again and the same thing happen.

i even tried to restore it in Itune using customs firmware that I got from one of the member here because I know once you update baseband to 06.15, you can restore in Itune. Every time i tried this, I got an "Error 21" and then USB cable shows and itune logo.

Any advise to bring my phone back to life is appreciated.

Thanks for reading

 

[MaxBurn]

You must be the new boot ROM?

Try redsnow "just boot tethered right now" option.

 

[Crystal-RX]

Thanks for your advise.

I did that several times using redsn0w 0.9.6b6 and it did not work. The result end up with USB cable & Itune sign.

 

[Crystal-RX]

I fixed. Thanks everyones help on this!