Thingy9161 PCA20064 default modem firmware and nrf cloud application

RE: Thingy9161 PCA20064 default modem firmware and nrf cloud application

dejans — Fri, 05 Dec 2025 14:56:24 GMT

Hi,

It seems that precompiled package for Thingy91X is based on nrf9151.
Can you please contact your regional sales manager for potential replacement?

Best regards,
Dejan

RE: Thingy9161 PCA20064 default modem firmware and nrf cloud application

mcallistertad — Fri, 05 Dec 2025 13:45:26 GMT

Hi, I have tried all available v2.0.x firmware versions, all packaged connectivity bridge versions.

The only output I can see via UART with any application loaded is:
*** Booting nRF Connect SDK v2.8.99-b38d03e9b452 ***
*** Using Zephyr OS v3.7.99-bc80cbda202a ***
Attempting to boot slot 0.
Attempting to boot from address 0x8200.
I: Trying to get Firmware version
I: Verifying signature against key 0.
I: Hash: 0x3e...f9
I: Firmware signature verified.
Firmware version 2
Booting (0x8200).

^
mfw_nrf91x1_2.0.2
thingy91x_mfw-2.0.2_sdk-2.9.0-preview
thingy91x_nrf53_connectivity_bridge_v2.0.1.hex
thingy91x_modem_shell_2024-12-04_b38d03e9.hex

RE: Thingy9161 PCA20064 default modem firmware and nrf cloud application

dejans — Fri, 05 Dec 2025 12:44:28 GMT

Hi,

You can look at Thingy91X and nrf9161 modem Downloads page. Thingy91X zip contains connectivity bridge. You should be able to use modem firmware v2.0.x.

Best regards,
Dejan

RE: Thingy9161 PCA20064 default modem firmware and nrf cloud application

mcallistertad — Fri, 05 Dec 2025 12:14:36 GMT

Hi Dejan,

What does it support please!

Which

modem firmware
Nrf53 application

Surely you have versions of these that have worked in the past?

Thanks for your help

RE: Thingy9161 PCA20064 default modem firmware and nrf cloud application

dejans — Fri, 05 Dec 2025 11:59:58 GMT

Hi,

hello.nrfcloud.com does not support PCA20064.

Best regards,
Dejan

RE: Thingy9161 PCA20064 default modem firmware and nrf cloud application

mcallistertad — Wed, 03 Dec 2025 19:38:07 GMT

Hi Dejan,
The quick start fails to install the nrf53 connectivity bridge. I also tried installing directly from the thingy91x release with no luck
https://www.nordicsemi.com/Products/Development-hardware/Nordic-Thingy-91-X/Download?lang=en#infotabs

What version of
1. nrf9161 modem firmware
2. nrf53 firmware - connectivity bridge
3. hello-nrf application software

are compatible with this engineering sample device I have? nRF9161 LACA ADA -PCA20064

When I go to the https://hello.nrfcloud.com/ and enter the device fingerprint, I get:
Fingerprint: f8.exm53k
clear
Unsupported model
The application does not support the model specified for this device (oob-355025930003411).

RE: Thingy9161 PCA20064 default modem firmware and nrf cloud application

dejans — Wed, 03 Dec 2025 13:23:07 GMT

Hi,

Have you followed Quick Start Guide?

Please also provide additional information about the files mfw_nrf91x1_2.0.2 and app: thingy91x_hello.nrfcloud.com_v2.0.2_debug.hex? Where did you get these files from?

Best regards,
Dejan