FP4: Reverse to factory OS script crash

Hello Everyone.

I’m having trouble installing the Fairphone OS on my FP4. Let me explain:

I’ve been using Calyx OS for the past few months but now I want to go back to Fairphone OS. I’m terefore following the instructions of these articles: https://support.fairphone.com/hc/en-us/articles/4405858261777

I’ve unlocked my bootloader (fastboot mode → device state - unlocked)
I’ve installed all of the lastest drivers and updates
I’ve downloaded the lasted version of the OS as mentionned on the fairphone article. Version: FP4.FP4G.A.170.20220920

I then run “flash_fp4_factory” batch file until the following message:

WARNING: Flashing this image wipes all user data and settings on the phone.
It will also remove the Google factory reset protection.
Are you sure you want to continue?
Type “Yes” (case sensitive) and press enter to continue: ¨

Then I type “yes” and the script crash and closes. Nothing happens afterwards…

I’ve tried many things (changing my USB cable, changing my computer USB port, changing fastboot from a to b and vice-versa, etc.) but can’t find a solution.

Can someone help me?

Many thanks in advance :slight_smile:

A post was merged into an existing topic: Roll Back from eOS (1.5.1S) flash closes