Chosen Solution
I had to replace the lightening connector assembly for an iPhone 7. Now when I connect the battery to the logic board the phone will only boot once. If I power it down and try to boot again I get the white screen with black logo. If I disconnect the battery connector and let it sit for a while then the phone will boot again but only once. Any ideas.
That’s an odd problem… I would try another Lightning flex to see if that solves the problem. I would also encourage you to double check the work you did in case you accidentally damaged or dislodged some components.
