Arduino uno r4 wifi: stuck in constant loop in serial monitor, unable upplod program or to reset

[hejjonas]

tried to update firmware and now it seems like my arduino is stuck. the RX led is constantly blinking, and nothing happens when i dubble press the reset button. ive tried different usb ports. Made sure that i selected the right port and board. any ides about what to do?

When trying to up load any program i get the following:

Device unsupported

Set binary mode

version()=ESP-ROM:esp32s3-20210327

Connected at 921600 baud

readWord(addr=0)=0x450a0d34

readWord(addr=0xe000ed00)=0x522d5053

readWord(addr=0x400e0740)=0x653a4d4f

readWord(addr=0x400e0744)=0x32337073

Failed uploading: uploading error: exit status 1

And serial monitor gets a constant loop of:

14:05:05.777 -> ESP-ROM:esp32s3-20210327 14:05:05.777 -> Build:Mar 27 2021 14:05:05.777 -> rst:0x3 (RTC_SW_SYS_RST),boot:0x8 (SPI_FAST_FLASH_BOOT) 14:05:05.777 -> Saved PC:0x403cd9f6 14:05:05.777 -> SPIWP:0xee 14:05:05.777 -> mode:DIO, clock div:1 14:05:05.777 -> load:0x3fce3808,len:0x44c 14:05:05.777 -> load:0x403c9700,len:0xbe4

[ptillisch]

Hi @hejjonas. You must power cycle the board after updating the firmware (pressing the reset button is not sufficient). Please try this:

1. Unplug the USB cable of the UNO R4 WiFi board from your computer.
2. Plug the USB cable of the UNO R4 WiFi board back into your computer.

Now try uploading a sketch to the board, just as you did before. Hopefully the upload will be successful this time and everything will work as expected. If not, add a reply here on the forum thread to let us know and we'll investigate further.

[hejjonas]

thanks for the fast reply, ive tried to power cycle the board still have the exact problem. and i shulde ad that when i tried to update the firmware i got an error message. saying somethin in line with "unable to update firmware"