I just finished installing e/OS on a new Fairphone 6. Now I would like to relock the bootloader. It feels a bit dirty leaving it open.
I am aware that relocking can trigger a bricking if the security patch level on the OS is lower than when the bootloader was unlocked.
Before installing, I did check my Android security patch. Sadly, I noted down the ‘Android security update’ value and only now see there is also ‘Vendor security patch level’. I feel uncertain about which value should be used.
Is there any way for me to find the original security patch level? Would knowing the ‘Android security update’ help? Or should I leave the bootloader unlocked untill I am certain the security patch is older than the phone’s original?
Thanks in advance!