Thingy91 - can't program, won't go into serial recovery mode, no lights

RE: Thingy91 - can't program, won't go into serial recovery mode, no lights

Akeem — Fri, 27 Aug 2021 09:39:04 GMT

Thank you for pointing that out, I will look into it

RE: Thingy91 - can't program, won't go into serial recovery mode, no lights

helsing — Fri, 27 Aug 2021 09:14:39 GMT

Great to hear you got it working, and thank you for posting the link.

The various colors for asset_tracker on Thingy:91 can be interpreted according to the table in the descriptuo

Please see the description of the user interface for asset_tracker regarding the colors of the RGB. Red indicates "Error". Is your Thingy:91 still flashing red?

Have you tried the testing procedure for asset_tracker?

"7.c. If association is successful, the device reconnects to nRF Connect for Cloud. If the LED(s) indicate an error, check the details of the error in the terminal window. The device must be power-cycled to restart the association procedure."

Are you able to see anything in the terminal?

RE: Thingy91 - can't program, won't go into serial recovery mode, no lights

Akeem — Thu, 26 Aug 2021 15:18:24 GMT

Thanks for the suggestion. I use hw version 1.4.0 nordic thingy 91 I was able to get it working now, though i was following the link you provided but wasnt working but i get it working using west flash as described here

https://devzone.nordicsemi.com/nordic/cellular-iot-guides/b/getting-started-cellular/posts/thingy91_2d00_fw_2d00_update_2d00_mcuboot

Now i have it working fine. just had my led flashing RED and frequent as oppose to the usual BLUE and interval.. Thanks

RE: Thingy91 - can't program, won't go into serial recovery mode, no lights

Akeem — Thu, 26 Aug 2021 15:12:14 GMT

Thanks for your reply.. After rigorous check and trial. I got it working to some extent. Now I have the asset tracker NB-IoT firmware working on the nrf9160 and the USB_UART connect running on the nrf52840. But the LED on the board flashes Red at a faster rate compare to the regular blue with a long interval.

Thanks

Akeem

RE: Thingy91 - can't program, won't go into serial recovery mode, no lights

helsing — Thu, 26 Aug 2021 14:07:43 GMT

Is this the Procedure you followed?

https://infocenter.nordicsemi.com/topic/ug_thingy91_gsg/UG/thingy91_gsg/updating_fw_usb.html

Which hw version of Thingy:91 are you using?

Are you able to update the modem fw?

Could you please provide a few screenshots from your attempts to program and from when things are failing?

RE: Thingy91 - can't program, won't go into serial recovery mode, no lights

helsing — Thu, 26 Aug 2021 12:01:27 GMT

Hi Akseem,

First, sorry for the late reply.

Which .hex did you program nRF9160 with?

Best regards,

Håkon