QUOTE(arcule @ Jan 13 2012, 10:20 AM)
hello people,
1)i got this problem on my i4. when i put in sim card, its say invalid sim/sim not support, what does this mean?
2)the phone is unlock previously, will it lock back after i upgrade to ios5 and jb it?
3) if my phone is lock, can i use those online service(which i need to pay ) to unlock it?
No problem, just follow these steps:
1. Backup your stuffs using iTunes. Preferably delete all your unimportant apps for speedy restore later.
2. Upgrade normally to iOS 5.0.1 using iTunes.
3. Use latest redsn0w (now is 0.9.10b3 I think), select "Jailbreak", put the phone in DFU, then at the option, make sure "Install Cydia" and "iPad baseband" is selected.
4. Restore your backup from iTunes.
5. Go to Cydia, wait for all the repo to load. Find ultrasn0w. If you can't find it, quit Cydia, find it again after a few minutes. Install ultrasn0w.
Locked phones from the US are not really that bad. You just need to find your ways around it. I can't understand why some people are so against them
This post has been edited by jackyyong: Jan 14 2012, 07:04 AM