Sonoff 433 MHz RF bridge problems flashing RF chip

Hardware
1

I was trying to be able to control my 433 MHz devices using HA and I bought the Sonoff 433 MHz RF (R2 V2.2). First I set it up as an esphome device and HA would detect it fine. However, I could not make it read any 433 MHz signals using the three remotes I have (for garage doors etc).

I then stumbled upon this article on how to flash the RF chip on the Sonoff board.

I am able to connect to the board using an esp32 dev board and I seem to connect fine, but when I try to erase the chip it returns status 4 and fails:

Handshake succeeded
Status: 0
Success
Chip read: 0xA
Connected…
Returning to idle state…
erase
Erasing chip…
Status: 4
Other error
Chip erase FAILED

signature
Read chip type…
Status: 0
Success
Chip read: 0xA

Does anyone know how I can get past this error and erase the chip so that I can flash the RF chip?

2

That is a github post in a repo with an issues category. Have you looked at current issues or asked there as well?

3

Thanks for pointing out that I missed the obvious part… :face_with_spiral_eyes:

I will see if the advice in the issue regarding the erase problems will help me out.

4

In case someone else stumbles upon this post and have the same problems, the solution for me was to downgrade the esp32 board library as stated here.