91X Quick Start

RE: 91X Quick Start

Simon — Wed, 30 Jul 2025 03:29:56 GMT

Hello,
the instructions and set of 91X files available from Factory reset with nrfutil did the trick!

thank-you,

RE: 91X Quick Start

dejans — Tue, 29 Jul 2025 10:17:59 GMT

Hi,

Can you try to perform factory reset?

Best regards,
Dejan

RE: 91X Quick Start

Simon — Mon, 28 Jul 2025 17:12:11 GMT

Hello,
I do not have issues programming 91X with Programmer as was done by writing thingy91x_hello.nrfcloud.com_v2.0.2.hex and viewing 91X data on https://hello.nrfcloud.com/.

Question is still why after writing /thingy91x_mfw-2.0.2_sdk-3.0.0/img_app_bl/thingy91x_nrfcloud_multi_service_coap_2025-05-08_3bfc4657.hex to 91X is Quick Start not recognizing the 91X? Is this the correct fw for Quick Start or is there some other fw that came initially with the 91X for Quick Start?

thank-you,

RE: 91X Quick Start

dejans — Mon, 28 Jul 2025 16:56:14 GMT

Hi,

You could try to progam your Thingy91X device using nrfutil. You can find more information in the documentation:
programming application firmware
programming precompiled firmware
updating application firmware on nrf9151 SiP

Best regards,
Dejan

RE: 91X Quick Start

Simon — Fri, 25 Jul 2025 00:35:50 GMT

Hello,
I do have an account and a few devices registered with app.nrfcloud.com, and Getting Started with nRF Cloud link does not mention 91X as a device.
Also, https://app.nrfcloud.com/#/add-device/lte-device does not mention 91X as a device either,
Add LTE Device
To add a device to your account, enter the device ID and PIN or HWID. For Nordic hardware like the nRF9160DK or Thingy:91, the device ID is "nrf-" followed by the 15 digit IMEI. Example: "nrf-123456789012345"

In an earlier Nordic conversation, Tacker, Markus <Markus.Tacker@nordicsemi.no> mentioned that,
You can add your Thingy:91 X to nrfcloud.com using the Quick Start app in nRF Connect for Desktop.

(not sure if Markus is saying QS is for app or hello, but you can register 91X directly with hello).

This is problematic as mentioned in my original case that I'm unable to have Quick Start recognize my 91X connected by USB directly to my laptop.
Basically, is this the hex the same type that came originally with the 91X that will be recognized by Quick Start?
Using programmer write to nRF91,
/thingy91x_mfw-2.0.2_sdk-3.0.0/img_app_bl/thingy91x_nrfcloud_multi_service_coap_2025-05-08_3bfc4657.hex

thank-you,

RE: 91X Quick Start

dejans — Thu, 24 Jul 2025 14:04:41 GMT

Hi,

Do you have an existing account on app.nrfcloud.com? You can look at Getting Started with nRF Cloud.

Best regards,
Dejan