Guyzz i have an issue. I unlocked the booloader of moto e xt 1022 and rooted it to install the root flashable 5.0.2 zip. Facing memory issues, i decided to switch back to kk. But now when i flash the stock firmware , starting with the command mfastboot flash partition gpt.bin, it gives an error saying preflash validation failed. Again when i skip these comamnds and flash just the recovery, boot and modem files , all goes pretty well. So i just want to ask , can i relock my bootloader again ? For any warranty issues in future ??