No power flowing to battery connector - Dock connector is ok.
I recently bought an iPhone 5 on Ebay and it won't turn on (although it was described as being in working order). I can't return it (German laws) but I've fixed a number of things on iPhone 4's before, so I figure I'd give it a shot.
Unfortunately I haven't got very far and need some help :-)
So I've used a multimeter and there's 0V on the actual battery connector when plugged in. When I check an iPhone 4S battery connector (plugged in) each of the 4 pins has a different voltage but at least there's some life.
So I checked the lightning cable, which shows something like 5.14V on the 4th (I think) pin to ensure that's not the problem. The dock connector cable also shows something like 5.14V on the plug where it plugs into the logic board.
One of the little brass coloured dots on the logic board also shows 5.14V but the battery connector doesn't do anything. The battery (is a replacement, apparently 1 month old) also shows 0V.
So in short, how can I check why no power is going to the battery connector or am I barking up the wrong tree and the connector only shows voltage when a battery is connected and the real problem is the battery? Any other tests you can recommend?
Thanks in advance for any help you can offer.
Is this a good question?