NRF9160 custom board modem problem

Hello

We have a project working on the NRF9160 dk, however we have run into some issues with our custom board, we are using the lwm2m_client sample to prevent that firmware errors are the origin and we use the DJ Jlink to program the custom board.

When the program gets to the modem_commect(function) and attempts to connect to LTE, it gets stuck and is unable to pass that function so I have some questions.

  • What are the hardware outputs to the modem that I should be looking at?
  • Using the DK as programmer, can I connect to the modem using the LTE link monitor to verify the modem is working correctly?
  • I have free UART pins, can I use them to get the LOG info? What should I modify in the configuration?
  • Any recommendation on bringing up the custom PCB
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