Flashing Sonoff POW R3 to ESPHome

Hi everyone,

I’ve recently got a Sonoff POW R3 and attempting to flash it with ESPHome firmware.

However, I appear to be failing at the first hurdle! So far I’ve read a couple of guides on this but I can’t for the life of me get this thing into flashing mode.

It doesn’t seem to matter how long it hold the ‘Flashing’ button for, I just get no response. The FTDI tried to communicate but no get no response - I’ve tried switching the TX/RX pins to no avail.

I know the FTDI board and wires works, I’ve just checked the esptool flash-id command returns data with one of the SONOFF light switch I’ve got.

The guide by ‘sigalou’ suggests that the blue led should got off when it’s in flashing mode, but that just stays constantly on for me - though slightly dimmer that if I let it boot normally.

The board in my POW R3 appears to be dated 2022/12/26. I’m using an FTDI FT232RI which is fine for all the light switch I have - maybe I need a different one for this?

Any suggest/pointers as to were I’m going wrong with this would be much appreciated.

Many thanks