Force your device into EDL mode using ADB ( adb reboot edl ) and click to clear out corrupt partitions and restore factory performance.
If you primarily use your Axon M as a daily driver and reliability is your top concern, the original Android 7.1 Nougat firmware is likely your best bet. This version has been thoroughly tested on the hardware and offers the most predictable behavior. The downsides are obvious: outdated security patches and lack of modern Android features. zte axon m z999 firmware best
Before proceeding with any firmware change on your Axon M Z999, consider these important factors: Force your device into EDL mode using ADB