Android tablet not working, Factory reset using keys - YouTube
Amazon.com: HIGOLE PC Rugged Windows Tablet, 10.1 Inch Windows 10 Pro Rugged Tablet, 4G LTE, GPS, 8GB RAM/128 GB ROM, 16000mAh/3.7V Battery, BT4.2 for Enterprise Mobile Field Work : Everything Else
Cheapo Tech: Reset Windows Tablet to Factory Setting Status - YouTube
How to Reinstall Android Firmware for Dragon Touch M7 Tablet | Late Reflections – the Silent Sky Studios Blog