This is a belated answer so hopefully it can be of use to folks who search for and find this question.
I would start by testing a bare-bones setup. Start by disconnecting the battery first (always!). Then disconnect the digitizer, LCD, front camera, rear camera and home button extension flex (see this guide). Now re-connect the battery; you should only have the battery and Lightning Dock flex connected. Connect a known-good, preferably Apple-original Lightning cable to an iTunes enabled computer.
If you have access to a multimeter, you could measure the battery first. If it reads ~3.8V - 4.2V, then it is good. Does iTunes recognize your phone? If so, then you should re-connect one flex at a time until the phone stops working. I would start with the Home button flex first, then add the rear camera, LCD & Digitizer then from camera flex.
If the bare-bones setup does not get recognized by iTunes, then you most likely have a logic board issue. You could send it (or find a local) to a repair shop that specializes in micro-soldering repair.
5 件のコメント
Might have missed a connection or didn't plug a connector in the whole way possibly? I would re-open the iPhone and recheck your connections.
dancheripka さんによる
Just checked, all connectors are plugged in! :(
iKatia さんによる
Try holding down the wake/sleep button and home button down at the same time till you see the apple logo.
dancheripka さんによる
If that don't work try connecting it to iTunes and try that same process.
dancheripka さんによる
It's not recognised by iTunes, I had no luck..
iKatia さんによる