I am in the market for a pixel 6A and I found one for 180€. It has a problem though, this error message:
The bootloader is unlocked and software integrity cannot be guaranteed. Any data stored on the device may be available to attackers. Do not store any sensitive data on the device. Visit this link on another device g.co/abh. There are few post regarding this issue. Would It be enough to flash graphene from a PC to solve the issue?