Firmware files and configuration backups are not interchangeable between V1 and V2 hardware. Attempting to flash V1 firmware on a V2 device can cause permanent stability issues or "bricking".
v2.3.1 (recommended for all production deployments) vx420-g2h v2 firmware
: You can also manage settings and check for updates via the TP-Link Aginet App for mobile devices. Important Considerations vx420-g2h v2 firmware