This video demonstrates the Factory Reset Procedure on Ex series using the Power Button. Please find the steps below which were performed :
1. When the unit is off (power must be plugged in), press and hold the power button
2. Wait until the power LED goes dark and then light up again (approximately 10 seconds).
3. Then release the power button and press it twice.
4. The system will boot up and display a confirmation message on the video screen if the process was successful.
Regards,
Mubashshir Akhtar