[HOW-TO] Flash /e/-OS on Fairphone 3 using Debian based GNU/Linux

Hello everyone!

I hope this is the right place to post my question, as it concerns different threads.

Wanting to degoogle my mobile life and having read about the e-foundation I bought a used Fairphone 3 (Android 10 installed) last week. And now I am trying to install eOS. However, I am completely new to the field…

In a first step I tried to follow the instructions on Install /e/ on a Fairphone FP3/3+ - “FP3”. In order to do so, I downloaded the necessary files and installed “Minimal ADB and Fastboot” on my PC (Windows 10). However, I got stuck with the command: “fastboot flash recovery twrp-3.4.0-0-FP3.img”. I got: “FAILED (remote: partition table doesn’t exist)”.

I then started reading across different forums. In different places, I found the recommandation not to install TWRP on the FP3 as this would make OTA updates impossible in the future. (E.g. here.)

When I came along this thread here, I realized that in this instruction no TWRP is flashed to the FP3. I am therefore wondering whether I might adapt this instruction for me (although I am not using Linux but a Windows 10), and install eOS in this way?

Any recommendations on that? Could it be a feasible way at all? And if so, are there certain commands which would have to be adapted?

Thanks a lot in advance!