Hi, I have the same issue as max. My iphone 5 won't charge, even thought iTunes detects it and says it's charging. I've used various lightening cables, various power bricks and various USB ports. I've changed the battery with batteries purchased on ebay and an oem apple battery, I have 4 batteries total. I also changed the docking port. I recently jailbroken to run a variety of battery apps. One app in particular has the charging status as "inactive" when not plugged in, which didn't surprise me. But when I pluged it in the charging status switched to "badtemp". jessabethany, you mentioned there is documentation out there to troubleshoot the logic board. I've tried googling it, and haven't found anything concrete, also you mention the middle pins of the battery monitor the gas gauge. I am unfamiliar with that. Any more info would be greatly appreciated.
Thank you so much