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Nordic Thingy91 Error updating Modem Firmware

I have setup my new Thingy91 and got it connected to nrf Cloud.  I can see environmental sensor data in the terminal window but it is asking me to update the modem firmware to see services etc.

When I try and use nRF connect Programmer to update the modem firmware via USB it fails each time with the error message 

"MCUboot DFU failed. Please make sure that the device is in MCUboot mode and try again."

I am powering up the device with SW3 pressed and I have the option ticked for MCUBoot.

Can you suggest what I should try next as I am not sure which application/firmware is working or not working and how to get the system updated to the latest firmware.

Regards

Mike

2020-07-24T10:09:12.068Z INFO Application data folder: /Users/michaelpyott/Library/Application Support/nrfconnect/pc-nrfconnect-programmer
2020-07-24T10:09:12.177Z DEBUG App pc-nrfconnect-programmer v1.4.3 official
2020-07-24T10:09:12.177Z DEBUG App path: /Users/michaelpyott/.nrfconnect-apps/node_modules/pc-nrfconnect-programmer
2020-07-24T10:09:12.177Z DEBUG nRFConnect 3.4.1 is supported by the app (^3.3.0)
2020-07-24T10:09:12.177Z DEBUG nRFConnect path: /Applications/nRF Connect.app/Contents/Resources/app.asar
2020-07-24T10:09:12.178Z DEBUG HomeDir: /Users/michaelpyott
2020-07-24T10:09:12.178Z DEBUG TmpDir: /var/folders/s3/x3kpzx597cddq3565v7c24kw0000gn/T/
2020-07-24T10:09:12.211Z INFO Using nrfjprog library 10.9.0, pc-nrfjprog-js 1.7.3
2020-07-24T10:09:12.213Z VERBOSE Could not fetch serial number for serial port at /dev/tty.Bluetooth-Incoming-Port
2020-07-24T10:09:12.213Z ERROR Error while probing devices: Error occured when get serial numbers. Errorcode: CouldNotCallFunction (0x9)
Lowlevel error: INVALID_OPERATION (fffffffe)

2020-07-24T10:10:53.563Z INFO Modem DFU starts to write...
2020-07-24T10:10:53.563Z INFO Writing /Users/michaelpyott/Desktop/Thingy91/thingy91_fw_2020-04-29_bc7ade8b/mfwnrf9160120.zip to device
2020-07-24T10:10:54.020Z ERROR MCUboot DFU failed. Please make sure that the device is in MCUboot mode and try again.

  • Hi Heidi, thank you for the updates.  I have managed to get the device working and connected to nRFCloud now after re-programming the asset tracking app to the nRF9160 device.

    Just waiting for GPS data to appear now.

    Thank you again for all your help and support.

    Regards

    Mike

  • That's good to hear! I will close this case then. 

  • Is there any updates to this issue? I am also facing the same issue where I can't put the Thingy91 into bootloader mode.

  • Hi, please make your own ticket if you're seeing this issue and include the Thingy:91 version, the OS you're using, the JLink driver version you have on your computer.

  • Alright. I did make my own ticket, I do not have a J-link though just updating through USB on Mac OS.

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