This was the delicate part. If the file was corrupted, or if the version mismatched, the phone would die forever. Mark watched the bar. It was a digital surgery, transplanting a new soul into a broken body.

Disconnect the USB cable and turn on your device. The first boot may take several minutes. Alcatel 9015Q Flash File MT6737m 6.0 Tested - Firmware

Wait for completion:

Choose Download or Firmware Upgrade:

Программное обеспечение и драйверы - Alcatel

The is the only official way to revert the device to its original factory state.