David GerardNever buy a OnePlus phone ever again. They now have a hardware anti-rollback fuse that blows if you revert to an earlier version or install a custom ROM.
https://consumerrights.wiki/w/Oneplus_phone_update_introduces_hardware_anti-rollback
Clemens@davidgerard That's just anti-rollback protection and actually a pretty common feature on modern Android. They should have disclosed for which vulnerability they're burning it, and their software should have disabled the protection for bootloader-unlocked phones (maybe it does? Doesn't seem clear from the link to me). But other than that, this doesn't seem particularly surprising, and you'll likely see similar things from other vendors, too.
Cookie@neverpanic @davidgerard
Yeah, fuses tend to be burned when upgrading from a known vulnerable bootloader version to a newer one with that vuln resolved. Classic example would be broken cryptographic verification of the to be booted image, at which point locked bootloader (be it with OEM or your own key) won't help you
Yeah, fuses tend to be burned when upgrading from a known vulnerable bootloader version to a newer one with that vuln resolved. Classic example would be broken cryptographic verification of the to be booted image, at which point locked bootloader (be it with OEM or your own key) won't help you