Working with an UN R4 WIFI for a university project. The board was working and my group has been able to load code onto if for a couple of days now, no problems. Where where able to connect to the internet and Display text to the LED matrix. This board was bought brand new for this project and is not even a month old.
Then a couple of days ago when I went to work with the Board it not longer was being detected by my PC, I checked unto the Device manger, nothing is showing up.
Troubling shooting step taken so far.
-Turned everything off and back on.
-
Double pressing the re-set button waiting for the flashing light.
-
Ensured all drivers and Arduino Ide are up to date.
-
Tired a different cables.
-
Plugged it into 3 different PC and no of them are detecting the board.
-
Shorting out the Boot loader pin to the ground and plugged in the R4 into my laptop.
-
one forum post suggested going to the ardunio file, opening the windows PowerShell and typing "bin\espflash write-bin -b 115200 0x0 (Get-Item .\firmware\UNOR4-WIFI-S3-*.bin).FullName" which when it runs it telling me.
" A new version of espflash is available: v3.3.0
Error: espflash::no_serial
x No serial ports could be detected
help: Make sure you have connected a device to the host system"
I have no idea how to fix this one. The board is still running the last code uploaded to it when I plug it in, so power is going threw. But not sure why out of the blue the board no longer communicates with any computers.
The R4 is defiantly the heart of the project, so I need to find a fix or get a new board, my fear is that a new board will just start having the same problems as this one. So I need to find a way to get this working again. I am not sure what has happened as it went from working fin to not showing up on any computer.
Appreciate any help, and time on this matter.