Stock AT&T GB, boot loop
Last night my wife's S2 battery died. When she plugged it in it comes up with the Samsung Galaxy SII splash screen, then black and then the splash screen again. We let it charge overnight and the charge looks fine. When I tried again this morning to turn the phone on I get the same results.
So I thought I'd be able to get into download mode and flash the stock ROM with Odin. I'm able to get into download mode, but now the problem is when I hook it to my PC via USB I'm getting an Unknown Device error. I've tried to reinstall the driver itself, un-installed/re-installed Kies and the drivers...still no luck. I've also went into device manager and uninstalled the unknown device, rebooted and as soon as I reconnect the phone I get the same message. I've even used a toothbrush to clean the micro USB port, just in case.
I'm sure if I can get this to connect properly via USB I should be able to get the phone back up and running.