Thingy91 unable to progress past the update firmware step

[morerook]

Hello,

I am stuck on the step of getting the Thingy91 to start working.

I am following this tutorial: https://www.nordicsemi.com/Products/Development-hardware/Nordic-Thingy-91/GetStarted

I uploaded the Modem firmware with the nRF programmer, followed by the MCU firmware. However, no LED lights are turning on for the Thingy91

I tried to go back to upload the modem firmware again, but when I press the modem's button and turn the device on, I can't find the device, and I am unable to reflash the modem's firmware. The device does not appear on the programmer.

I'm not sure how to proceed from this step.

nRF52 firmware: thingy91_asset_tracker_ltem_2021-06-28_7a076c22.hex

modem firmware: mfw_nrf9160_1.3.0.zip

Thank you

[Albrecht Markus Schellenberger]

Hello,

Please follow this guideline to program application firmware image to your Thingy:91 using the MCUBoot.

Please note: The Asset Tracker application image is supposed to be downloaded to the nRF9160 SiP and not the nRF52840! For the nRF52840, please use the image:

thingy91_nrf52_connectivity_bridge_2021-06-28_7a076c22.hex

The Connectivity bridge will ensure the terminal functionality between the Thingy:91 and your computer.

Regarding the connection to the nRF Cloud:

• You have to ensure you have downloaded and provisioned the cloud certificates to your Thingy:91. Please use the AT client firmware image thingy91_at_client_2021-06-28_7a076c22.hex when downloading the certificates to the modem.
• I would recommend use the Asset Tracker v1 to add your Thingy:91 to the nRF Cloud.
• Please make sure that the device is in the state described in point 7 of the Testing chapter, before you add your device to the nRF Cloud.

• After adding your Thingy:91 to the nRF Cloud successfully, you can proceed with the Asset Tracker v2.

Regards,

Markus

[morerook]

Hello,

Thank you for your help. I have flashed the at_client, updated the cloud certificates, flashed the asset tracker v1, and inserted my sim.

However, the device just keeps flashing white, which means that it is just connecting to the network. So far I've not seen it turn yellow on the asset tracker v1.