ESP8266 Community Forum

- Thu May 07, 2015 10:43 pm #16857

Code: Select all$ screen /dev/ttyUSB0 9600
Yv��x��I:��h`�Ri���h`�R-����


Code: Select all$ screen /dev/ttyUSB0 74880
Yv��X�X x��Xh`�i���XH`�m�����


I've reflashed the board several times and but nothing changes. So I'm beginning to think that the bootloader has been corrupted. Is that possible?

Are there any other possible issues?

- Fri May 08, 2015 7:44 am #16888 Why 9600? Have you tried 115200 or other speeds? Before flashing a new ESP8266, did you just try running it with the default AT firmware it comes with?

If you are able to flash the ESP-01 and the flasher doesn't report a problem, the bootloader is probably OK.

Over the last several months, I've done just about everything imaginable to my ESP-01s, and I haven't managed to brick one yet. They are tough little guys.

- Fri May 08, 2015 8:22 am #16896

Over the last several months, I've done just about everything imaginable to my ESP-01s, and I haven't managed to brick one yet. They are tough little guys.

Ditto!! LOL

- Sat May 09, 2015 8:36 pm #17044 9600 is the baudrate of NodeMCU which I've been running. 115200 also produces gabled data.