3gs not booting up after ultrasn0w

[PLANTREEZ]

i jailbroke a 3gs today an since it was a new model i did the whole jailbroken state before opening cydia but after i installed ultrasn0w an it went to reboot it just stayed on the boot up screen the apple logo
what should i do?

[iYeow]

Are you at 4.2.1 now

[PLANTREEZ]

yes

[iYeow]

What is your baseband and sorry you just said new bootrom.

[PLANTREEZ]

new bootroom its at 6.15.00

[iYeow]

Do you have 4.1 shsh blogs for this device.

Ok, you don't want to be on 4.2.1, it is a tethered jailbreak.
What you need to do is to downgrade to 4.1 with 4.1 shsh blogs and using Tss Server to downgrade.
I am sure you know how to do that, right ?

Once you have downgraded to 4.1, you can jailbreak it with Redsn0w 0.9.6b5
and unlock with Ultrasn0w.

[PLANTREEZ]

no i dont know how to do that can you please tell me how to do it?

[iYeow]

Open up tiny umbrella, without the phone plug in, tell me do you see your device name on the left side.

[PLANTREEZ]

it just says new iphone

[iYeow]

is that your device name for this device ? highlight it and and click save shsh , tell me what shsh you have

[PLANTREEZ]

ya i never name it at the bottom it says 4.1 save it right?

[iYeow]

hopefully you have 4.1 shsh blogs for this device.

[PLANTREEZ]

but this iphone is a 3gs not a 3g does it matter?

[iYeow]

Good, now , highlight the 4.1 shsh blogs, Start your tss server > you can tap on the log to see the progress, it will say connecting.
Now plug in your iphone and shift + restore to stock 3gs 4.1 ipsw

[PLANTREEZ]

but my other shsh arent 3gs they are 3g

[iYeow]

Make sure this shsh blogs is your 3gs device, a 3g device blogs is diff from this one.

You cannot mix apples and oranges.

[PLANTREEZ]

where can i find the 3gs shsh blogs for 4.1

[iYeow]

If after click save shsh in TU, and you don't have it, then you can't.
I have only one solution for you if you want to listen.

[PLANTREEZ]

please do tell me

[iYeow]

I want you to run redsn0w 0.9.6b5 and browse to stock 4.2.1.
Check only the box : DfU mode.
Once you are in DFU mode : Open up itunes and shift + restore to this custom fw of 4.1 ipsw ( you want an activated or non activated)