Fairphone 5: the web installer failed, now about to try the manual installation but one question remains

[piero]

@jerdef82

installing /e/OS on it will more than likely brick my phone

installing is never an issue, but relocking the bootloader…

@jerdef82

Your screenshot shows 2026-02-01 as the latest security patch for the /e/OS build but the latest Android security update on my phone is 5 January 2026.

i don’t see the issue here…

@piero

things you must take care about

Your Stock OS Android version, must be the latest available relative to the /e/OS build you want to install → not higher !

Warning: Before proceeding with the installation, log out of any accounts you may have set on the stock ROM. Also, remove any screen locks that have been set on the device.

Use a USB-A to USB-C cable on a rear USB port if possible, to avoid hub even internal

If you plan to relock the bootloader after the installlation

this is not mandatoty, and only available with Official version, why relocking ?

Most important thing to take care about is the “android Security Update" aka "Security Patch Level” date (SPL) included in the installed Operating System on your device at time of the unlock.

new version on witch you want to relock the bootloader, must included a NEWER (or the same) “android Security Update" aka "Security Patch Level” date (SPL),

otherwise you risk to change your device into Brick.