I got this Moto g84 with CalyxOS from ebay but had to update it to the 7.2.2.0 release. Now the thing is, the seller specifically said if I relock the bootloader the phone will be bricked. I used the web installer for the g84 model and left it unlocked, but that g84 installer says its safe and a different part of the CalyxOS site also says don’t relock any Motorola phones. Do any of you guys know more about this or what the consequences of leaving it unlocked could be?
That’s exactly what I said? A ROM with a backdoor is a malicious ROM.
Bootloader locking stops web-caught malware from modifying the OS and thereby making itself persistent (reset-resistant).
People with physical access is a different threat.