Hello,
I am trying to measure nRF9151 current using Power Profiler Kit II, running Cellular UDP project on EVK and following the steps in:
https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/samples/cellular/udp/README.html
Added the following lines to prj.conf:
CONFIG_SERIAL=n
CONFIG_TFM_LOG_LEVEL_SILENCE=n
CONFIG_UDP_DATA_UPLOAD_FREQUENCY_SECONDS=30
It seems the modem doesn't enter PSM mode in the image below:

Thanks in advance for your comments and insight to help resolve this issue.
Roya