Shows NO SERVICE Need Help asap

[Krystian_E46]

I had 2.1 updated to 2.2 but my sim unlock did not work so i went to 2.1. in the process of downgrading to 2.1 i jailbroke with winpwn. Now its jailbroken and its a 2.1. and it shows no signal when i put my tmobile sim card and the sim unlock.

what can i do. any thoughts should i reset the whole phone again ?

Thanks, Krystian

[Youngbinks]

The 2.2 update comes with a baseband upgrade that I believe has been known to disable the SIM unlocks. I'm not sure if there is a way of fixing it yet. I will look around.

I know that on the Quickpwn website they said not to update to 2.2 just yet.

[Krystian_E46]

is there any way i can restore my iphone to brand new

[Youngbinks]

You can restore in iTunes. Just plug the phone in and choose restore. Then you want to set it up as a NEW iPhone. That will bring it back to stock.

As an aside, you have a 3 series?

[Krystian_E46]

haha yeah i do i got a 01 325i im on e46fanatics

[Youngbinks]

I figured so, not too many people know what an E46 is. I'm on e46fanatics as well. Same name over there as well.

Were you able to restore in iTunes?

[Krystian_E46]

im trying the 2.2 custom firmware now if that does not work i will have to restore it using itunes

[Krystian_E46]

can i restore my 3g with itunes and not get 2.2, i know if i press the shift button and select which update to choose from but then its starts installing and then it shows error

[Hawk]

The problem is that you already ran the update and it updated the baseband (communications) firmware. As far as I know, it's not reversable.
Your best bet is to contact the SIM card manufacturer and see if they have conquered Firmware 2.2 for the 3G