I've got an iPhone 3GS I would like to sell. So I erased all content through the Settings menu.
The iPhone won't start up anymore. It was stuck on the Apple logo. A friend of my who is "good with electronics" was on a holiday, so the iPhone was in my bag for over a week.
Now he is back, the iPhone 3GS was dead. The battery has drained (not so weird after a week
). Unfortunately the iPhone will not go into DFU mode anymore 
It's stuck in a loop. First you see the famous Apple logo. After a couple of minutes the screen will go off, then showing the red empty battery icon. And after a short while the Apple logo is back on. It keeps repeating this logo/battery loop.
It is not possible to go into DFU mode. I tried different USB cables, a power adapter, the USB port on my MacBook Pro. It does not matter.
The iPhone 3GS is jailbroken (iOS 4.1) with Pwnage.
What can I do/try?
The iPhone won't start up anymore. It was stuck on the Apple logo. A friend of my who is "good with electronics" was on a holiday, so the iPhone was in my bag for over a week.
Now he is back, the iPhone 3GS was dead. The battery has drained (not so weird after a week
It's stuck in a loop. First you see the famous Apple logo. After a couple of minutes the screen will go off, then showing the red empty battery icon. And after a short while the Apple logo is back on. It keeps repeating this logo/battery loop.
It is not possible to go into DFU mode. I tried different USB cables, a power adapter, the USB port on my MacBook Pro. It does not matter.
The iPhone 3GS is jailbroken (iOS 4.1) with Pwnage.
What can I do/try?
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