Iphone 3G turn off just when making a call?

[Papicho]

hello all,

im having a probleme thoses days guys , my iphone 3g on 3.0 os turn off everytime while making a call.
i thought firt it was the sim card, i changed it with other sims from other network ,still the same probleme.
and as soon as it turns off while trying to restart the phone the phone won't start until i remove the sim.
jailbroke it and unlock it .. redsn0w again .. Ultrasn0w again nothing.
please if you had this probleme or any issue about please post here, how to fix this problem!
thank you guys

[reddawg]

hello all,

im having a probleme thoses days guys , my iphone 3g on 3.0 os turn off everytime while making a call.
i thought firt it was the sim card, i changed it with other sims from other network ,still the same probleme.
and as soon as it turns off while trying to restart the phone the phone won't start until i remove the sim.
jailbroke it and unlock it .. redsn0w again .. Ultrasn0w again nothing.
please if you had this probleme or any issue about please post here, how to fix this problem!
thank you guys

I didn't read that you restored a clean stock 3.0 firmware before re-jailbreaking and installing Ultrasn0w. I would recommend restoring your 3G with a stock 3.0 firmware and jailbreak it using Redsnow v0.80, then Ultrasn0w. Make sure "Enable 3G" is disabled. Don't "restore from backup" in iTunes, this causes problems. Set your phone up as a new device in iTunes.

[Papicho]

thank you REDDAWG ,now im having another problem Cydia doesnt want to open , everytime i press on it it closes ,and the wifi cannot connect to the internet.. pfff

[reddawg]

thank you REDDAWG ,now im having another problem Cydia doesnt want to open , everytime i press on it it closes ,and the wifi cannot connect to the internet.. pfff

In order for Cydia to work, it must have a WiFi connection. Since you cannot connect to your WiFi network, try resetting your network settings. In most cases, this should fix your WiFi problem.

Settings -> General -> Reset -> Reset Network Settings

Afterwards, go back into Settings -> General -> Network and Turn Off "Enable 3G". This will get turned back on after reseting your Network Settings. Turn your WiFi on and then connect to your wireless network. Once you are connected to your wireless network, launch Cydia and let it "Reorganize" and exit. The 2nd time you run Cydia, it should prompt you to install "Essential updates", make sure you do. You should be all set.