I can propose this procedure (only !): -- make dump of BIOS with USB SPI flash programmer; -- modify this dump; -- flash modified dump with USB SPI flash programmer.
as i said before I don't know the method to flash your dumped bios back (except of with USB SPI programmer).
Whitelist must be patched for new WWAN card ID - provide your card's ID (as here https://forums.mydigitallife.net/th...tions-mod-requests.20223/page-198#post-819522 )