nRF9160 NB-IoT SIM registration step by step guide

[5prinG]

hi 

I have nRF9160 dev kit, which I am using in a LAB with a private LTE SIM card, which has 99920 PLMN ID.

The network supports Band 3, and NB-IoT is configured as an in-band signalling.

I am using nRF connect 3.6.1 software to fire up the AT commands, which includes scanning of the network, and then it should allow me to register to the network

which is not happening, 

at this stage, can you please provide me step by step AT command guide to troubleshoot the problem, 

I am attaching the initial device logs collected, 

Moreover, I have also tried with the Vodafone commercial SIM card, which is also not connecting.

I am using this kit with a windows 10 machine, 

looking foward

[Albrecht Markus Schellenberger]

Hello Abhishek,

just to double-check some things:

1. Have you re-build the Asset Tracker application after you applied the change to prj.conf?
2. I’m a little confused by all the AT commands in the beginning of the log. The Asset Tracker application basically should connect itself to the cloud given that your SIM card is activated properly and you successfully have registered your device to the nRF Cloud. Please follow the Asset Tracker application guideline.

Regards,

Markus

[5prinG]

hi Markus

The aim for me is to get the device attached to the NB-IoT LAB network.

Is it possible to have a quick call to discuss the situation?

I am little bit nervous now, because, Nokia radio engineer has confirmed me that there is no registration request is reaching to the antenna, 

how to confirm that the device is requesting for the access?

if i do AT+CSQ, then device is returning "OK"

if i do AT+COPS=?, then device is returning "time out"

I want to configure device to hunt only Band 3, can you please send me the AT command list?

I am referring the AT command guide here "Nordic Semiconductor Infocenter"

I tried command 

AT%XCBAND=?,
but again, getting time out

Do I need any tool to fire the AT command?

Please advise me further

looking forward to hearing from you