ESP8266 Community Forum

After I have fried my last module I got another one... And again I have problems.

- On regular startup I get "MEM CHECK FAIL!!!", then some garbage, AI-Thinker line and then "invalid". There is no response to any typed commands.

- The AP gets established (AI-THINKER_A3967B), but I cannot seem to be able to access it with a browser (or telnet).

- All my attemps at flashing it failed.

I have run out of any ideas what else I could do...

My setup is: a cheap FTDI dongle and a separate 1200mA power supply. I also have tried a passthrough Leonardo board instead of the FTDI dongle, the results are exactly the same.

With a cheap ftdi dongle and win 7 or 10 it might be a driver problem - not accepting the clone ftdi...

schufti wrote:With a cheap ftdi dongle and win 7 or 10 it might be a driver problem - not accepting the clone ftdi...

As I wrote, I have also used Arduino Leonardo as a serial bridge and the results were exactly the same.

It seems flashing works from time to time (curiously, only in one app), so I guess I will have to live with that. Now I have a problem with a serial connection (when I try to echo commands sent over WiFi on a serial connection, I do not receive anything), but I guess it is a subject for another post, if I do not figure it out first.