08-10-2023, 03:09 PM
As previously stated, just use the dip switches to power off the modem; if your threat level is so high that you have to remove the modem/disable the modem firmware, your opsec has already been compromised by posting this question on a public forum.
Satisfied PinePhone, Pinebook Pro & PineTab2 owner; Thank you Pine64Team for your work!