* Support boot from USB mass storage device, '''USB mass storage boot is available on Raspberry Pi 3B, 3B+, 3A+, and 2B v1.2 only.''' please refer to [[#How to boot from a USB Mass storage device on a raspberry pi 3]]:
=='''V3.0 Upgrade Features=='''
* Using patch process to improve the quality of the X820 V3.0 Board;
* Add Powers button switch on the board to control the power supply.