Fairphone 5 does not start after step 24 /24 of the easy installer

This screen is not expected during the install process for this particular device, why it didn’t worked…

Good point is the bootloader must be already unlocked !

Install “fastboot” (included into “platform tools” and also “git-bash” as explained in the official instructions.

Put the device in Bootloader / Fastboot mode, plug it to the PC, and check “windows device manager”.
If you see driver problems (yellow triangle), launch “Windows Update” (with search for optional drivers enable)
[Solved] Windows does not see my phone in Fastboot mode

Install /e/OS on a Fairphone FP5 - “FP5”