I have a i4 on BB 01.59.00 running 4.1 jailbroken with limera1n, after release for ultrasn0w 1.1-1 i unlocked mi iphone and was working great for about 2 weeks the started working sometimes and other times showing no sim installed and then shortly after it stoped working completly now it always shows no sim installed, have tried using greepois0n , limera1n and redsn0w and nothjing seems to work still wont work on any other carrier other than at&t, any help or tricks you guys can provide would be greatly appreciated

Originally Posted by Erickson12

I have a i4 on BB 01.59.00 running 4.1 jailbroken with limera1n, after release for ultrasn0w 1.1-1 i unlocked mi iphone and was working great for about 2 weeks the started working sometimes and other times showing no sim installed and then shortly after it stoped working completly now it always shows no sim installed, have tried using greepois0n , limera1n and redsn0w and nothjing seems to work still wont work on any other carrier other than at&t, any help or tricks you guys can provide would be greatly appreciated

Could it be your carrier or SIM card?

Have you tried the SIM card in a different (non-iPhone)? Have you tried to contact your carrier?

Also.. try the new legitimate activation method (in conjunction with ultrasn0w) see http://www.hackint0sh.org/f204/194306.htm for details

I have official activation, i live mexico and work in the US, i swith between att and a mexican carrier , still works withh att just not my other carrier, and now the you mention it i am beginning to think it is the sim card because cant find anyone else having same issues while having and unlockable BB, cant try the sim on any other phone besides an I4 since its a micro sim but i will start looking into replacing it and see what happens, thanks for the tip

Found this link online, this will be my next step , hope it works

Fixing iPhone 4 “No-Sim Installed” Problem | WooServers

Originally Posted by Erickson12

Found this link online, this will be my next step , hope it works

Fixing iPhone 4 “No-Sim Installed” Problem | WooServers

tell me if it works.

so i gave the link a try, still didint work, i had and old sim card from a couple years ago, i cut it up to fit the micro sim slot and it works, got now service bc its not activated but it the phone recognizes it, so im assuming my sim card is damaged, will be going to get a new 1 tomorrow and see if that 1 works

got my new sim card and it works now, thanks for the help, probably wouldnt have figured it out without your help