nRF9160 AT commands error

[EmiMatrix]

Hi!

I've just received a nRF9160 DK.

I've installed nRF Connect v2.6.2 and LTE Link Monitor.

I select the device (3 serial ports are shown). I press reset button and the terminal shows that the application is started.

I introduce AT, AT+CFUN? and AT+CFUN=1 commands but always receive the same message: "Error 'AT' timed out".

What's the problem?

By the way, LED3 is always blinking. I've registered the Ibasis simcard and I'm in Madrid (supposed LTE-M / NB-IoT coverage).

Thanks in advance.

[Bjørn Kvaale]

Have you tried to press the reset button once the application starts & then press the AT+CFUN? again? This normally solves the issue. This video may also be helpful.

[EmiMatrix]

.... and suddenly started to work!

Thanks!

[rkguy]

why is this the case?

[Bjørn Kvaale]

Not sure. Just a tip from experience. It may be something to do with logging maybe. I have noticed similar things when opening up a Segger RTT log in Bluetooth Mesh for example. Sometimes I need to turn off the nRF52 DK before I open the RTT log. 

[Haifan]

I had the same error.  Resetting the board didn't help, but starting the nrf programmer solved it.  Does anybody know why?