Hi friends, this will just be a quick guide on how to fix a C21 MTK device not booting into a custom recoverySo here is what you need to do:Flash A.03, unlock and flash patched lk!!!DONT INSTALL CUSTOM VBMETA!!!then"fastboot erase recovery""fastboot flash recovery imghere""fastboot reboot recovery"After the screen goes black, quickly disconnect usb cable and hit power button once.Then Orangestate or dm-verify error should appear, quickly hit power button and you are good to go...Read more