FP3+ stuck during boot and entering factory reset

Hi. This is my first post on this forum. I started following topics about unbricking fp3 just 2 days ago. A lot of learning… Thanks to everyone contributing and sharing their knowledge.

I have almost the same issue with my fp3 as unclelutz (including previous problems with microphone). Only difference is that my phone had suddenly reboot itself and never worked again since 2 days.

I will try to follow procedure which @flup did, within next few days. However before that I’d like to prepare and understand a bit more. I consider myself a novice in flashing process. I’d like to ask more experienced members of community a couple of questions.

  1. Are files devinfo-unlocked.gpx and devinfo-locked.gpx generic or specific to someones phone? And can I use files downloaded from this forum or I need files dumped from my phone. I’m asking because @k4y0z mentions in his post since unlocking causes the decryption-keys to change wiping data is still necessary (as it can’t be decrypted anymore). I guess here is my lack of knowledge. How to do it to still have a chance to get back data?
  2. Is it better to follow procedure FP3(+). Install Fairphone OS offline or use a script from topic “I bricked my FP3 and I hated it” mentioned by @yvmuell here

I’m asking these questions with the hope in my mind to get back the data. Do you have any advice to increase my chances?

Kind regards