ESP8266 Community Forum

Hi I have two modules ESP8266 one came with version V922 and i upgraded the other to this version. Now I upgraded one of them to V95 but now seem that they do not work
one was updated with AT + commands and first time got CIUPDATE error the second time went OK.
the other module i will attempt to update via software, but only got conecction error at the beginning and does not seem to update.

Can anyone tell me which version would be installed with AT + CIUPDATE and which speed have as default? I did on January 28

is there anyway to be sure if they are dead?

V922 is not Espressif Official version， maybe it's baudrate is 9600 ，
but baudrate of Espressif Official AT is 115200 ..

It seems that you are using AT which is developed based on Espressif Official AT by someone other , but they didn't change function "AT+CIUPDATE" , so when you upgrade, you upgrade back to Espressif Official AT which baudrate is 115200..

Please try : Baudrate 115200 , AT commands ends with /r/n (CR LF)

You can download documents about AT on Espressif BBS http://bbs.espressif.com/viewtopic.php?f=5&t=154

Thanks, but I get nothing understandable or 9600 or 115200.
The blue LED flashes very fast, but I do not get anything.

another module with 922 continues by going normally.

It may be dead?

Thank You