Hi,
I have an issue with nrf9151 modem not starting, giving -116 error.
The board is configured as:
nRF Connect SDK v3.0.1
Toolchain v3.0.2
board target: nrf9151dk/nrf9151/ns
I programmed the modem firmware mfw_nrf91x1_2.0.2.zip and it programmed successfully.
To eliminate that the issue is not from our custom firmware, I programmed serial_lte_modem sample application.
From RTT, it shows -116 error.

Do you know what would cause this?
I tried to reheat the nrf chip but did not make any difference.
I measured DEC0 to be 2.2V. What voltage should it read?