ESP8266 Community Forum

- Wed Dec 02, 2015 12:59 am #35477 I am using the ESP8266Flasher.exe from https://github.com/nodemcu/nodemcu-flasher freshly download today. It connects to the ESP8266 and pulls the information; however, it will just say "Flashing" forever and never progress. I let it go for three hours and it still just sat there.

I can connect to the ESP8266 with ESPlorer v.0.2.0-rc2 by 4refr0nt and it reads:

Code: Select allPORT OPEN 9600

Communication with MCU...
Got answer! AutoDetect firmware...

Can't autodetect firmware, because proper answer not received.

I expected this but shows that the ESP8266 is connectable. Any suggestions or help?

Last edited by JeremiahLandi on Fri Dec 04, 2015 5:37 pm, edited 1 time in total.

- Fri Dec 04, 2015 5:35 pm #35671 Thanks to /r/esp8266 I was able to resolve the issue. What it turned out to be is bad USB drivers. I was able to uninstall all of my USB drivers and then reinstall them with the correct drivers and it works!

It seemed somewhere along the line a windows update replace some of my drivers with their generic ones.

What was also happening is that when I rebooted the ESP8266 my mouse would move all over the screen and randomly start clicking things. No idea the exact cause but definatly driver.

Good lukc to anyone in the future. Took me three hours to reinstall all the drivers! :/

- Sat Dec 05, 2015 3:11 pm #35744 The symptom of your mouse pointer taking on a life of it's own goes way, way back to the time when Microsoft had driver code that looked for an 'm' (or maybe'M') to tell the system you had a particular type of mouse. This ends up biting people if they have a serial port that begins transmitting characters when it is first plugged in. While the system is deciding what driver to load, if it sees a random 'm', it says 'here is a mouse so load a mouse driver'. At that point, incoming chars are treated as mouse moves.

- Wed Dec 09, 2015 7:59 pm #36115 @Trickuncle Great to know!

As an FYI, I had this problem come back. I did the same fix after uninstalling the driver. Didn't work a second time.

I installed the following driver and it worked long term without problems.

CH341 USB-TTL driver from ElectroDragon (http://www.electrodragon.com/w/CH341)