How To Unlock Non Us Samsung Devices Locked By Regional Bootloader
The lock itself is inside the bootloader, but the trigger for the lock is inside the system – its fairly difficult to reproduce, but it typically triggers when you insert a SIM card from another country than your firmware country version. It seems a bit odd since people obviously travel and temporarily use SIM cards from countries they are visiting, but we’re not Samsung’s security experts. What basically happens is the device will reboot and wipe data – this really won’t effect people on stock ROM, despite the sudden wiping of their data simply for using a SIM card from another country, but if you have for example a custom binary such as a rooted kernel or TWRP, you will be prevented from booting, because the bootloader will be locked against booting on custom binaries that alter the system....