After updating the firmware on NRF9160 Connect DK LED 3 does not turn on and AT commands in LTE Link Monitor yield Error: AT timed out

[Seth Hora]

After updating the firmware on NRF9160 Connect DK (using mfw_nrf9160_1.3.1.zip as well as the ltem asset tracker hex file) LED 3 does not turn on and AT commands in LTE Link Monitor yield Error: AT timed out

I have tried erasing and re-flashing the modem firmware but this yields no change. 

[Albrecht Markus Schellenberger]

Hello,

did you get confirmation that the update was completed successfully, as shown in the picture below?

Which revision of the nRF9160 DK are you using? Please note that:

Regards,

Markus