Chosen Solution

I replaced the battery and charging port, but now that it’s back together, when I tried to turn it on the apple logo flashed once, disappeared, and now I can’t get any response from my phone at all

Hey, Have you tried plugging it into iTunes and into DFU mode? (Home and power to turn on) Try restoring or updating the iPhone, and please tell me if you get an error code or any luck.

The first thing to do i to go back through the guides and double check your work. Some things to look for are damaged flex cables (even the tiniest tear), damaged connectors or missing or partially dislodges components in and around those connectors. You’ll want to use magnification, especially for the last part.

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