New answers tagged bootloader-lock
The only thing similar to this that I can think of is device encryption, it's built in to the settings panel. Every time you power on your phone, you are required to enter a pass-code, that you created. If you forget it, it will be more difficult to get back into your phone How To Go to settings Click Security Under the Encryption group, hit Encrypt ...
Try booting into fastboot and run fastboot format cache and then fastboot erase cache.
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