iPhone stuck on Apple logo

[awaisuk]

I just installed some app and it told me to restart the iphone i said ok.

Now after restart iphone doesnt turn on...iPhone stuck on Apple logo and then after a few minutes the iphone shuts down by it self.

I have Iphone 3GS 3.0 firmware jailbreaked and unlocked.

Please tell me how i can fix my iphone without restoring through itunes?

[iGenius57]

Try this. Hold down the home button and power button at the same time till the whole thing shuts off (do this while the apple logo is stuck) and just keep holding it firmly until it auto restarts, if its still stuck on it, you may have to just do a restore and jailbreak :(

[iNinja]

No genuine app should ask you to restart once installed. Although restarting may be advised. If its a cydia app then this used to be common place. If a soft reset doesnt work then hold down the home button whilst plugging your iPhone into iTunes. You may have to restore

[justinxtreme]

Yeah
Hold down the Home and Power Button

[Napoleon_PhoneApart]

No genuine app should ask you to restart once installed. Although restarting may be advised. If its a cydia app then this used to be common place. If a soft reset doesnt work then hold down the home button whilst plugging your iPhone into iTunes. You may have to restore

The occasional Cydia app still asks for a reboot.

[Europa]

Winterboard is the only one that I have that required a reboot.