Hello. I have been a member of this site for 5 years now. I have never owned an iPhone. I have endlessly searched for a solution to this problem without luck. I attempted to unlock my girlfriend's iPhone 4 BB 4.10.01 for use on T-mobile. I read that Gevey Sim Ultra was the only way to go, so I cut her sim card (correctly) and used Gevey Sim (also correctly). Her phone was already jailbroken when she purchased it. Upon inserting the Gevey sim I get the FuriousMod accept screen. I click accept and wait for 'no sim' to turn into 1 bar. I dial 112 and hang up within 2 seconds. I then wait for sim failure and turn on airplane mode for 45 seconds. Here's where my experience is different than almost everything I am reading. Instead of sim failure messages I get New Voicemail notifications. I click close, get another, then searching for signal turns into 'no service'. I waited over 10 minutes and never got service, even after cycling airplane mode several times. I cannot get her phone to connect to T-mobile no matter what I do. I turned off 3G and data and used apn wap.voicestream.com for both apns. I appreciate any help in advance. I also have no problem upgrading her to ios5 if you guys can point me in the right direction. There doesn't seem to be a comprehensive guide anywhere that I can find. Thanks in advance!