Inserting SIM causes iPhone to freeze

[cj022]

I sold a unlocked and jailbroken iPhone 3G to a buyer from Ukraine. He uses MTS Ukraine and says that when a SIM card is inserted, the phone freezes up.

Anyone know of a solution?

The iPhone is on iOS 4.1, has been downgraded to 5.13.04 baseband, and has ultrasn0w 1.1-1 installed.

[dotFIVE]

Try reinstalling ultrasn0w (make sure 3G is disabled before doing this).. and maybe doing a hard reset while the SIM card is inserted.

If that doesn't work, a restore might be required.. via custom firmware, though, to keep the baseband.

[MikeMiamiFL]

Your post mentions iOS 4.1 and then downgrading baseband. Unless you used Tiny umbrella to upgrade to 4.1 while preserving the older baseband, I don't see how you could have downgraded bb 05.14.02. It's just not possible at this moment.

And there might be your problem. The phone might have locked up again...

[cj022]

Your post mentions iOS 4.1 and then downgrading baseband. Unless you used Tiny umbrella to upgrade to 4.1 while preserving the older baseband, I don't see how you could have downgraded bb 05.14.02. It's just not possible at this moment.

And there might be your problem. The phone might have locked up again...

Exploitable bootloader: 05.08 + Fuzzyband 4.1