Netgear R6300 v2 - Router not working / no boot after erasing nvram

[luwaz]

After flashing the initial firmware , upgrading to the latest AIO firmware (Version 2019.3 BETA) and erasing the nvram via webgui or ssh the router won’t boot anymore. The only way to restore the router is by flashing the stock firmware via TFTP or nmrpflash.