Ensure the firmware you used is specifically designated as "Unlocked" or "All Operator."
Try a different USB port (use USB 2.0 instead of 3.0) or different USB cable. SIM Not Supported: Firmware Andromax M3y Unlock
Find the custom "Unlock Firmware" for Andromax M3y (usually in a file) from a trusted forum like XDA Developers or reliable Indonesian tech blogs. Download QFIL: Download the (QFIL) to flash the firmware. Extract the firmware files into a folder on your desktop. 2. Enter Download Mode (EDL Mode) Turn off the Andromax M3y. Remove the battery. Hold down the WPS button Ensure the firmware you used is specifically designated