Unlock Bootloader ( Load Fastboot ) By Chimera or hcu And use This File
JKM-L21 9.1.0.309(C185E2R5P1T8)_Firmware_EMUI9.1.0_05015JMY
Only Unlocked Bootloader --- Flashing By HalabtechTool --- more info here (https://bit.ly/33zK24Q)
Only Unlocked Bootloader --- Flashing By HalabtechTool --- more info here (https://bit.ly/33zK24Q)