Can't put RAK4631 in DFU mode

WisBlock
1

Hi, i have a RAK4631 and the baseboard 19007 Gen2, version C.
i’m working on Windows 11 Pro, the firmware version got from the terminal AT command:
AT+VER=?
AT+VER=RUI_4.0.6_RAK4631

i’m not able to flash a new firmware on it. Pushing twice the reset button didn’t bring it into DFU mode. Could you please provide me with details on how can i manage to work with it?

i can’t flash the new firmware neither.

C:\RAK>adafruit-nrfutil.exe --verbose dfu serial --package WisCore_RAK4631_Board_Bootloader.zip --port COM12 -b 115200 --singlebank --touch 1200
Upgrading target on COM12 with DFU package C:\RAK\WisCore_RAK4631_Board_Bootloader.zip. Flow control is disabled, Single bank, Touch 1200
Touched serial port COM12
Opened serial port COM12
Starting DFU upgrade of type 3, SoftDevice size: 151016, bootloader size: 39000, application size: 0
Sending DFU start packet
Timed out waiting for acknowledgement from device.

Failed to upgrade target. Error is: No data received on serial port. Not able to proceed.
2

says that you have a RUI3 device. RUI3 does not have double push reset to go into DFU mode.

Update guide ==> Device Firmware Upgrade

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