ESP8266 Community Forum

- Tue Feb 16, 2021 11:14 am #90540

Could you set the baud rate of the serial monitor to 74880 Baud and reset the Wemos for us?
That would/could give you the actual error message.

SerialBaud.png

Wow, that is new for me. I configured 74880 bps in the Serial Monitor and press reset on the board and this is the result:

Code: Select all13:12:25.384 ->
13:12:25.384 ->  ets Jan  8 2013,rst cause:2, boot mode:(3,6)
13:12:25.384 ->
13:12:25.384 -> load 0x4010f000, len 1384, room 16
13:12:25.384 -> tail 8
13:12:25.384 -> chksum 0xd0
13:12:25.384 -> csum 0xd0
13:12:25.384 -> csum err
13:12:25.384 -> ets_main.c


- Tue Feb 16, 2021 11:20 am #90541 try flashing in dio mode instead of dout (or vice versa)

- Tue Feb 16, 2021 11:25 am #90542

try flashing in dio mode instead of dout (or vice versa)

I'm sorry, I don't understand what you mean.

- Tue Feb 16, 2021 12:26 pm #90543 When you select a particular board type under Tools then it can restrict the various settings you can choose.

For the Wemos Pro I think it restricts the programming mode to DIO only.

If you select the generic board type instead then you get to see all choices for all boards. Make sure you set the 16M memory option you want. You can then try out QIO, DIO and DOUT programming metthods. These affect how the data is written to the flash.