Hello
I was setting up the nordic thing 91 (1.4.0, 2020.23) using this video https://www.youtube.com/watch?v=xQ7hDzRULJQ&ab_channel=NordicSemiconductor.
Things were going fine until I got to the section on adding the LTE device around 5:20 in the video. I was successfully able to flash the device and add the sim card, but on the LTE page I get an error that the device hasn't been provisioned. (Error: No device found for this id. The device has not yet been provisioned. Troubleshoot nRF Code 40412).
In the description of the video is the following note: If you have a Thingy:91 v1.4.0 or higher, you have to update the FW on the nRF52840 (connectivity_bridge) first, before following the instructions at 2:44 to update the FW on the nRF9160. Please keep in mind that the method for putting the device into serial recovery mode varies depending on which chip you are flashing to (either pushing SW3 for the nRF9160 or SW4 for the nRF52840, while turning the device on)..
This applies to my device, so to follow the note (using the download precompiled application and modem firmware 2021-06-28_7a076c22)
1.) Turn on device with sw4 held to put into boot mode and allow flash to nrf52840
2.) Select the hex file thingy91_nrf52_connectivity_bridge_2021-06-28_7a076c22 and write (in nrf connect 3.6.1)
3) turn off device
4) boot device with sw3 held
5) update modem with mfwnrf9160120 zip file
6.)turn off device and boot again with sw3 held
7.) write thingy91_asset_tracker_ltem_2021-06-28_7a076c22 hex file
At this point the device just flashes blue for 15+ minutes and never changes to indicate that it connected. I am unsure if I am misunderstanding what the note is explaining to do or if there is some other issue. What could be causing the device to fail to connect?
Also general questions: I assume that the firmware updates persist on the chip until overwritten correct? I also noticed that if I start the device in boot mode and complete the firmware update using a zip file I cannot write after, and have to turn off and on the device in boot mode once again. Is this the correct way to flash multiple times to the device or is something incorrect here?
Thanks
