If your phone shows "No Service" or a blank IMEI number (Dial *#06# ), the NVRAM partition within the firmware is corrupted. Re-flashing restores this.
Verify you are pressing the correct boot key combination while plugging in the USB cable. Kgtel K2160 Firmware
: Erases deep system bugs, corrupted internal caches, and file operation errors instantly. Step-by-Step Firmware Flashing Guide If your phone shows "No Service" or a