I recently bought an iphone 3gs in which i have upgraded to 4.3.5 already jailbroken but still not unlock. I am wondering if theres a way to unlock it without lowering the firmware ?
You can Unlock the I-Phone 3GS using the remote I-Phone Unlock service,to get the remote I-Phone Unlock service you can reach the site simpleunlocking.com and get the service and Unlock it...You need to install the I-tunes latest version in your apple i-phone 3GS to use that remote Unlock service.......All Network locked I-Phones cannot be Unlocked.So check service for Your Network locked Country,Network...then order service and Unlock it.(If you need to use Other Network than T-Mobile means You can unlock it)