Uses a TYWE2S module. It didn’t allow tuya-convert via wifi. I had soldered the required wires for a serial flash to the locations that I had found on the board. However, it wasn’t found via NodeMcu Pyflasher. I completely desoldered the TYWE2S frmo the main board as it seemed as if teh TX and RX connectors where going somewhere on the board, e.g. to a switch. Serial flashing it separately without a connection to the board of the plug worked.