PC Help for Sonoff - Not able to Write Sketches or Flash with FTDI


#1

Quick question: when trying to flash my Sonoff’s with ESP Easy i am unable to do it from my main desktop computer. in the command prompt it says unable to access the com port. (same problem if i try and write sketches to arduino’s) I can see the com in the device manager and am running CMD in administrator mode. - I’m sure its a PC problem because i can move over to my laptop - take the exact same steps and it works perfectly.


#2

Is something else open that is accessing and locking the com port? Try killing some of the other apps/services you have running and see if that clears it up. Also, is your USB driver up-to-date?


#3

Makes sense Ryan! I went in and double checked everything made sure i dont have any programs or background apps running that should cause any issues and am still having the issue. I also did double check and updated the USB Driver - Still the exact same issue.


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#6

The flash says its running on Com6 But your usb to serial is showing up on port 3. Trying using the correct port.


#7

Good catch Ryan - Forgot i moved it to a completely different port. Retried it again this time using com3 - same result.