Chosen Solution
Hello. So I bought a used iPhone 6 for $30 from ebay which had a cracked screen and was a bit bent. I had a original iPhone 6 screen laying around, so the first thing I did was to replace that. As it said in the description on the ebay listing, it did not power on. And it didn’t do that after the replacement either. The battery will not charge, but when I switched it to my third functional iPhone, it does. So what I thought might be the issue, is that the power button flex / button has been damaged as well as the Charging Port Dock as I charged the battery to 50% and still didn’t turn on… What else can be the issue? The motherboard was a bit bent, maybe 1 - 2mm, but looked fine. Phone is not water damaged.
Definitely sounds like a damaged logic board. A bent board can cause broken or intermittent solder connections and will cause all kinds of issues. It may be worth it to have it looked at by a micro-solderer (many work on no fix/no fee) but that depends on whether or not you were will ing to spend additional money to get it working. Also, bent boards can have other latent issues lurking in the background.
