[reddevilseye]

1st u need an att sim card why?? u need the phone to say waiting for activation
how do u know if its good??
u need to re-lock ur phone with bootneuter in cydia
restore to 3.0 with ur att sim inside
when ur done itunes should nooooooot give u the att page to activate...the phone should say waiting for activation(the phone should be connected to ur pc or mac at the time)
install tap tap from apple store (free) open the app to have push active
with att sim in use redsn0w to unlock and jb
wait till phone is on again
change sim card with tmobile one
reboot then u will get a message phone is activated

3g phones the same thing ...wait for activation message,,,redsn0w for jb...ultrasn0w,reboot with tmobile sim

in general u need the phone to be activated with att sim till someone finds another way

post ur try plz
if it works dont forget to hit the thanxs
enjoy

[CoasterFuelPhil]

I could not re-lock the phone by downloading boot neutter. so when I did restore it I was asked to register with ATT. What should I do?

[reddevilseye]

Originally Posted by CoasterFuelPhil

I could not re-lock the phone by downloading boot neutter. so when I did restore it I was asked to register with ATT. What should I do?

u need an active att sim that is able to activate the phone
bootneuter will aske u to reboot then when u reboot open it again and flash ur phone,,,tern all switches off

[CoasterFuelPhil]

I have an unactivated ATT Sim card that just came off its credit card holder. Ran Boot Neuter and then rebooted, still unlocked so I restored and it went to the ATT registration page.

[mxlu]

Originally Posted by reddevilseye

1st u need an att sim card why?? u need the phone to say waiting for activation
how do u know if its good??
u need to re-lock ur phone with bootneuter in cydia
restore to 3.0 with ur att sim inside
when ur done itunes should nooooooot give u the att page to activate...the phone should say waiting for activation(the phone should be connected to ur pc or mac at the time)
install tap tap from apple store (free) open the app to have push active
with att sim in use redsn0w to unlock and jb
wait till phone is on again
change sim card with tmobile one
reboot then u will get a message phone is activated

3g phones the same thing ...wait for activation message,,,redsn0w for jb...ultrasn0w,reboot with tmobile sim

in general u need the phone to be activated with att sim till someone finds another way

post ur try plz
if it works dont forget to hit the thanxs
enjoy

so i have to restore the phone to original from itunes? if so, can i do a backup and restore it?

[reddevilseye]

the att card u have is no good
u need an active card theat can activate ur phone,itunes should aske u to restor frombackup or to set as a new phone,if u get that screen thet means ur sim is good,
if ur sim is good u will get this screen

Originally Posted by mxlu

so i have to restore the phone to original from itunes? if so, can i do a backup and restore it?

relock first then restore,
backup i didnt try, it was set as new phone

[Pcpro745]

duplicate thread

http://www.modmyi.com/forums/t-mobil...working-9.html

[reddevilseye]

Originally Posted by Pcpro745

duplicate thread

http://www.modmyi.com/forums/t-mobil...working-9.html

no its not there they r saying u need an inactivated sim which is not the case herand they only say the 3g no 2g fix.

[Anijake]

I am thinking the only way to relock and start fresh is to go back to 1.1.4 reflash the old baseband and the upgrade back. Since the unlocking is done in the baseband the only way to be sure that it's relocked is to reflash the baseband. If someone knows how to reflash the current baseband without going all the way back to 1.1.4 I would like to know.

Maybe using this guide: http://www.iclarified.com/entry/index.php?enid=1536

[bamgates]

Thanks.......... This Worked For Me. I used my company's blackberry bold sim card which is At&t. Loving The Push!

[reachbeyond]

so can you use any sim that's activated under AT&T or does it have to be previous activated with an iphone?

[Du Blex]

This method only works for 3G phones NOT 2G PHONES! We all will have to wait until the Dev-Team fixes the error and releases an upate

[Pcpro745]

Originally Posted by reddevilseye

no its not there they r saying u need an inactivated sim which is not the case herand they only say the 3g no 2g fix.

yes that thread shows the 2G fix read through it thats how i found out how to get it working, Oh well whatever works! but its working now someone needs to get it stickied!

[b3nny]

we got two guys saying this works as long as you have an AT&T sim that works, and the standing theory is that you need an at&t sim that is in a legit/activated at&t iphone already. can someone PLEASE chime in with their experiences... lets get some confirmation here people... the internets want to know...

[Pcpro745]

ive gotten it working with my ATT sim on 3 2G's and two 3G's all but one was redsn0w