This is the firmware the phone was designed to run. Since the hardware is very complex (two screens, one hinge, specific display drivers), the stock firmware is the only version where all hardware features work correctly.
This is widely considered the for most users. Build B15 was the last stable release before ZTE’s legal troubles halted updates. It offers: zte axon m z999 firmware best
If your device is soft-bricked, you can attempt to flash the using the Smartphone Flash Tool This is the firmware the phone was designed to run
If you intend to root or install custom ROMs, you must unlock the bootloader. specific display drivers)
: If you have the US variant, the AT&T software version is the most reliable for cellular connectivity and OTA updates.
