I recently picked up a 3GS from ebay that has a boot loop issue. I picked it up figuring it wouldn't be too much of an issue to just restore it to factory via recovery mode + itunes, but now that I've got it here my computer doesn't seem to be picking it up. When I plug it up it gives me the low battery icon and then goes to the apple logo after a bit, but then if you just leave it like that after a while it ends up going back to the dead battery icon for a minute or two and then goes back to the apple logo again (obviously since it's stuck in a boot loop it wont go past the apple logo). I can get it into recovery mode too, but my computer still doesn't pick it up (no new hardware sound, it doesn't show up in device manager even though it's getting enough power to get to the boot screen, itunes doesn't start up). If you leave it sitting in recovery mode it does the same deal after a while and goes back to the low battery icon, then to the apple logo again. I suspect it might just have a bad battery that i'll need to replace, but in the photos from the ebay auction the phone is sitting outside with no hookup and sitting on the apple logo, and the seller mentions only that it would go to the apple logo and then shut off after a while, no mention of any trouble getting it to charge/hold power.