I just got the new R4 wifi and went to IoT then downloaded their connectivity software and downloaded the drivers. moments later I realized I couldn't connect to the device anymore and the RX LED was blinking non-stop. I have attempted to reset my computer and tried some of the other recommendations on some of the other forms but i have had no such luck. I have had my device be recognized as ESP32-S3-USB-OTG, ESP32-S3-Box, LOLIN S3, Adafruit QT Py ESP32-C3, and more. The reset button doesn't work, and when I unplug the power and plug it back in it just goes back to blinking the RX light.
When I also try to do the uno4wifi-update-windows.zip. and unzip and run the update file, i just get this error.
Cannot enumerate, try direct open
No board connected
Cannot put the board in ESP mode. (via 'unor4wifi-reboot')
Press any key to continue . . .
Then i press a key and it closes the program.
I have also tried uploading blink and pressing reset button multiple times with no progress. I also tried a jumper connection on the bottom left 2 pins just below the SCL and SDA markers - this did actually get the RX LED to stop blinking but still wasn't making it be recognized by anything.
Please help!
Currently, I am running on a rog Zephyrus G14 Laptop with Windows 11. Any help on fixing my bricked device would be greatly appreciated. I literally just bought it.
Hi just as a little disclaimer at the start i am very new. When i tried to do the steps i got stuck at step 4: From the root folder of the downloaded .zip file run" bin\espflash write-bin -b 115200 0x0 firmware\UNOR4-WIFI-S3-0.2.0-rc1.bin. I tried to find a location to run this in but CMD doesn't seem to find the code although it is unzipped and i can't seem to find a arduino terminal where i can use this command. Help would be greatly appriciated
Open the unor4wifi-update-windows folder that was created when you extracted the downloaded unor4wifi-update-windows.zip file at the previous step in the instructions.
In the folder listing of the unor4wifi-update-windows folder, hold the Shift key while clicking the right hand button on the mouse.
From the context menu, click "Open PowerShell window here".
Windows PowerShell will now open.
Type the following command at the Windows PowerShell window command prompt:
The PowerShell window might now show a list of the serial ports present on your computer.
For example:
Start flashing firmware
[2023-07-11T06:39:09Z INFO ] Detected 2 serial ports
[2023-07-11T06:39:09Z INFO ] Ports which match a known common dev board are highlighted
[2023-07-11T06:39:09Z INFO ] Please select a port
❯ COM1
COM42- USB Serial Device (COM42)
If so, use the ↓ key on your keyboard to select the port of the UNO R4 WiFi board from the list, and then press the Enter key.
The terminal window will now show the following prompt:
? Remember this serial port for future use? (y/n) ›
Press the N key on your keyboard.
The flashing process should now start. Wait for it to finish, as indicated by output that looks something like this:
I just tried this process and nothing is executing when I hit enter (step 13) windows 10. I have been trying to update firmware for a few days on and off to try and use the Cloud program and it just fails every time I try.
Just want to add here(had the same problem too) incase someone might have the problem I had, On Step13, if it says Get-Item : Cannot find path 'C:\Users\Administrator\Downloads\unor4wifi-update-windows\firmware' because it does not exist. simply click the folder 'unor4wifi-update-windows' again and repeat Step 9.
For Step 12, I restarted my PC, unplugged and plugged by usb and magically worked(dont know how lol) worked for me, might work for ye too ^^
Arduino Uno R4 WiFi Recovery: From "ESP32S3 CAM LCD" Back to Working Board
How I solved the Problem:
After a failed firmware update via Arduino IDE/Browser, my Arduino Uno R4 WiFi was recognized as "ESP32S3 CAM LCD" in Device Manager. Normal firmware update tools no longer worked - board was essentially "bricked".
It is essential to perform this step.
