Revert to StockOS with fastboot from LOS 21?

[JohnnyD]

For starters, this guy tried it…

Returning to FPOS from LOS fails

Hi, I used LOS on my FP4, now I have FP5 and want to pass on my FP4, therefore I try to install FPOS on it. I’m trying to follow this article: https://support.fairphone.com/hc/en-us/articles/18896094650513-Install-Fairphone-OS-manually and also have (as far as i can see) successfully unlocked bootloader according to https://support.fairphone.com/hc/en-us/articles/10492476238865-Manage-the-Bootloader fastboot oem device-info shows this (bootloader) Verity mode: true (bootloader) Device unlock…

and this one (FP5 though)…

Phone stuck in fastboot mode, unable to install Fairphone OS

Hi, I recently got a Fairphone 5 and wanted to install e/os on it. I had thought I could do it through the easy installer but found out after buying that wasn’t an option yet. Anyway, I wasn’t too put off and read the instructions carefully and then tried to step through them. Long story short, the installation didn’t work. It’s stuck in the bootloader menu (it gives me the four options start, restart bootloader, recovery mode, power off, but choosing any only loops it back to this screen). It …

… you may get in contact directly with them and ask whether they succeeded.