Need help flashing WiFi Wall Socket (MQTT)

I just purchased a WiFi wall socket Model: PS-16-WSA (https://www.amazon.com/Wireless-Compatible-eWeblink-Controlled-Lighting/dp/B075XKQR6S/ref=sr_1_1?ie=UTF8&qid=1517364709&sr=8-1&keywords=HansSmart)

Has anyone purchased this socket and figured out how to flash a different software?

It seems the usual Esp8266. You should:

@namadori Thanks for the reply. I am pretty new at doing this kind of stuff. Any idea you can point me to tools needed to figure out the Vcc, Gnd, TX, RX? I am assuming they are probably the 5 white cables coming into the board.

If there are no points marked on the board, you should look for the pinout of the chip and follow the traces. If you are lucky there will be an easy point to connect, if not you’ll have to make a tiny solder on the leg of the chip.
If you don’t find any documentation it will need a bit of reverse engineering to understand the circuit.

I bought 2 of these and successfully flashed Tasmota firmware on it Via the SonOTA technique. Unfortunately, you cannot control the outlets independently. But controlling them both at the same time works perfectly with Tasmota and MQTT.

Great news. I thought SonOta worked only with Itead devices.

It use ESP8285.

any i found the Vcc, Gnd, Tx and RX pins and connect the programmer (FLASH_DOWNLOAD_TOOLS_V3.6.4 and ESPEasy)

but it always “Chip sync error: Failed to connect to ESP8285: Timed out waiting for packet header”

and I change Rx <-> Tx、BAUD,but still sync error

and I also try OTA, but this item firmware version 1.6, can’t use…>_<
Any idea for me?