RAT setup failed at index: 0

nicouccello

Hello CircuitDojo community, I bought 12 Feather NRF9151 boards from Digikey.
I’m using Myriota’s service (HyperPulse) to access the NTN service. The problem I’m having is when I load the sample firmware onto the new boards I bought from Digikey, not the ones Myriota sold me.

I’ve attached images to see if I’ve configured something incorrectly.

[00:00:00.655,517] <err> hal_at_modem: RAT setup failed at index: 0

this is the USB serial:
[00:00:00.293,395] <inf> lis2dh: lis2dh@19: int1 on gpio@842500.19
[00:00:00.293,487] <inf> lis2dh: lis2dh@19: int2 on gpio@842500.12
[00:00:00.295,196] <inf> lis2dh: fs=2, odr=0×4 lp_en=0×0 scale=9576
*** Booting Zephyr OS build f791c49f492c ***
[00:00:00.305,603] <inf> hyperpulse: Running Myriota HyperPulse library: v1.0.1
[00:00:00.305,664] <inf> hal_sys: Reset reason: PIN reset
*** Setting antenna configuration: AT%XANTCFG=1 ***
[00:00:00.655,517] <err> hal_at_modem: RAT setup failed at index: 0
[00:00:00.655,548] <inf> hal_at_modem: Modem restarted
[00:00:00.752,410] <inf> at_comms_host: Modem firmware: mfw_nrf91×1_2.0.2
[00:00:00.759,002] <inf> at_comms_host: IMEI: 355025931539983
[00:00:02.900,604] <inf> at_comms_host: IMSI: 901820101000115
[00:00:02.902,191] <inf> hal_at_modem: UE not registered
[00:00:02.981,536] <inf> diagnostics: Storage metadata: 5b944605, config-clean, 2025-12-03T10:21:55Z, 1.0.3
[00:00:02.982,604] <inf> app_startup: *** Vsys Current Limit: 1000 mA ***
[00:00:02.994,079] <err> hal_at_modem: RAT setup failed at index: 0

myriota:~$ Demo Application: v2.0.0
[00:00:04.984,863] <inf> configuration: Configuration initialized: period=10 s, GNSS=enabled
[00:00:04.985,168] <inf> hw_ctrl: Console is already enabled
[00:00:04.986,145] <inf> hw_ctrl: Accelerometer disabled
[00:00:04.986,175] <inf> hw_ctrl: SW0 disabled
[00:00:04.986,236] <inf> hw_ctrl: External flash disabled
[00:00:04.990,631] <inf> hw_ctrl: Console is already enabled
[00:00:04.990,661] <inf> hw_ctrl: USB is connected
[00:00:05.991,424] <wrn> location_manager: Unable to obtain fix, timed out. Trying again in 1 mins
[00:00:05.991,668] <err> modem_urc: Failed to parse location URC modem response (-22)
[00:00:07.000,244] <wrn> location_manager: Unable to obtain fix, timed out. Trying again in 4 mins

Thank you, Nicolas.

jaredwolff

@nicouccello for now, the ones I ship via Digikey and via Circuitdojo.com do not come with NTN capable modem firmware. It’s only recently been released publicly.

It’s on this page:

https://www.nordicsemi.com/Products/nRF9151/Download?lang=en#infotabs

Scroll down to nRF9151 SiP NTN firmware

Then you’ll need to load it with the modem firmware loader:

https://docs.circuitdojo.com/nrf9151-feather/updating-modem-firmware.html

Then you should be good to go as long as Myriota built against the latest alpha.

nicouccello

jaredwolff Thanks for the quick response. I’m going to try to fix it by flashing the firmware.
If all goes well, we’ll be bringing you a lot of boards. I bought the last ones that were available at Digikey. How can I contact you to order a larger quantity?

jaredwolff

jared@circuitdojo.com

nicouccello

I’ve reached this point, but I don’t know if I need to load a .zip file (something unusual) or one of the files inside. I keep getting a timeout message. I’m running Windows. Were you able to flash the firmware? I also tried loading the WinUSB from Zadig.

thanks

jaredwolff

It should work on Windows without Zadig (it doesn’t use a COM port) You need to use the .zip file as the argument

I’ll try it here to double check.

jaredwolff

The output from your side would also be useful @nicouccello