unlocked iphone 4 help!!!!

[speedyturtle]

What's up guys this noob has a quick question for you experts. I just bought a unlocked iPhone 4 and am using it on tmobile. It belonged to a little girl before I bought it so the software is very old. I noticed when i clicked on safari it plus it up and instantky closes. It also does this when I click on two seperate apps called "cydia" and "furiousmod" I Googled the two apps and they have to do with the unlocking. my question is, can I update my software with this unlockor will it reset the phone. If so, can I do the unlock off eBay where you send your imei number and be able to update to ios6?? Any help is greatly appreciated!

 

[enots27]

Sounds like a semi teathered jailbreak to me try downloading redsnow onto your computer and connecting your phone and clicking just boot.