Just received the WIO WM1110 kit - Cannot upload from Arduinio IDE - I see it as USB CH340 but not in my file manager

Good day guys,

I am totally confused about that kit I received…
1- I cannot upload anything from Arduino IDE. Looks like DFU bootloader is not running
Cable is good as working with smartphone
2- where do you plug the included solar panel ?
I wend to the Seeed doc here but could not find those infos
Thank you

Error msg ;
Failed to upgrade target. Error is: No data received on serial port. Not able to proceed.
Timed out waiting for acknowledgement from device.
Traceback (most recent call last):
File “main.py”, line 296, in serial
File “dfu\dfu.py”, line 235, in dfu_send_images
File “dfu\dfu.py”, line 199, in _dfu_send_image
File “dfu\dfu_transport_serial.py”, line 179, in send_start_dfu
File “dfu\dfu_transport_serial.py”, line 243, in send_packet
File “dfu\dfu_transport_serial.py”, line 282, in get_ack_nr
nordicsemi.exceptions.NordicSemiException: No data received on serial port. Not able to proceed.

Possible causes:

  • Selected Bootloader version does not match the one on Bluefruit device.
    Please upgrade the Bootloader or select correct version in Tools->Bootloader.
  • Baud rate must be 115200, Flow control must be off.
  • Target is not in DFU mode. Ground DFU pin and RESET and release both to enter DFU mode

Check if the board is in DFU mode. You have to enter DFU mode. The error may have also occurred due to wrong port selection. If nothing is set wrongly, maybe a corrupted bootloader.