I got my phone from my brother this week.. It had 2.0 onit and it was never hacked.. I downgraded to 1.1.4 and used ziphone to unlockit everything works except the sim card i keep getting a error saying " wrong sim card "
I also cannot get installer installed on there to try to viginize it... Any help would be appreciated
Go to settings > General > About > Modem Firmware. If it's at 4.04 you're good... if it's at 4.05 you need to run kiphone on my guide and go from there.