iPhone won't turn on after apple logo
I've been trying to repair my iPhone and have a feeling the battery is faulty, I was wondering if someone could supply me with the terminal readings for the battery?
what I mean by it not turning on is that you can boot it up ONLY with it plugged into the wall charger, then when I turn it on the apple logo appears as normal then after say 10-15 seconds the phone switches off, when I unplug the USB as it's showing the apple logo it switches off instantly. My dad reckons there's not enough power to go through it (he's good with technical things) therefore I think I need to replace the battery if the terminals aren't reading and I might need to change the dock connector.
My dad tested the battery and it states the right voltage amount but I think he said that one or two terminals aren't reading, could this be the problem?
Is this a good question?