unable to activate iphone

[Enyce718]

Hello to all

My girlfriends old iphone was unlocked and used with t-mobile. Me being a genius I was trying to restore the phone so I can use it for my self since she had gotten another phone. As the restore was being completed it asked me to plug into itunes. Surely enough I plugged it in and I got a message saying that the sim card wasn't supported (t-mobile sim). Anyone got any ideas on how I can get out of this mess??? please?!?

Thanks in advanced :0)

[blkcadi]

Welcome to MMi,
If you have restored it, what firmware? Version of iTunes?
You could re-jailbreak/unlock using redsn0w.

[Enyce718]

Thats where the bigger problem comes in, I'm not too savvy firm wares and stuff like that. its one of the old iphones and I used the new itunes.

[blkcadi]

If you click on the help menu in iTunes, it will tell you the Version#, most likely you have 3.1 on your phone. PC or Mac?

[Enyce718]

I am not able to find the version (I feel like a jerk). But I am running windows Black XP

[blkcadi]

Here is a link to firmware, download 3.0 it will be the easiest way to fix this for you.
Then do a hold-Shift+Restore in iTunes and point to the firmware you downloaded. (Download to desktop) and let the phone do it's thing.
Download redsn0w 0.8 here. You will also need 2 bootloader files you can get here, (they are 3.9 and 4.6) they are at the bottom of the page here
Then run redsn0w and follow the screen prompts, very easy and it will walk you through the entire process.

[Enyce718]

Thanks for the info I will try it in a minute. only thing is that when I plug it into itunes it wants to activate it and wont give me the option to restore.

[blkcadi]

Then you will have to put the phone in DFU mode, here's how.
When the phone is in DFU mode, it will have a blank black screen, it may take more that 1 try.
DFU mode
INSTRUCTIONS
Step 1. Turn off iPhone
Step 2. Hold down the power and home button.
Step 3. When you see the Apple logo, release the power button but continue holding the home button down.
Step 4. Open iTunes and wait for it to tell you that it detects iPhone in restore/recovery mode

[Enyce718]

Thanks a lot man. I will give a try and let you know how things went.

[Enyce718]

Thanks bro!! it really helped a lot. you are a freaking genius, well to me it seems like it because this is the first time did this!! one last thing, where can I get intsaller for this firmware?

[Enyce718]

any idea on how to jailbreak a 3gs??