[Problem] Intel 82579 network adapter disappears after crossflashing BIOS

Good day everyone!

I’m trying to crossflash MSI MS-7717 (OEM board for LG) motherboard with BIOSes from other Chinese board to enable UEFI Boot as well as other modern features such as TPM2.0 and Secure Boot. To make the port BIOSes, I only replace the BIOS region from the stock dump with the one from donor BIOSes and keep the GbE Region intact.
My stock dump:
MS-7717(1).zip (2.8 MB)

So far, I’ve tried 3 different donor BIOSes from Angxun X7-VB-V3.2, AFOX IH61D3-MA2-V2 and Jingsha IND-B75A. All the BIOSes booted up fine, but the Intel network adapter disappears in Angxun and AFOX BIOSes. Only in the Jingsha BIOS does the Intel LAN work, but this BIOS is not so optimal in that Secure Boot is unavailable. I have tried to insert the IntelGigabitLANx64 DXE driver into the former 2 BIOSes but still the Intel LAN doesn’t appear. Can anyone more knowledgeable shed some lights into this for me? Thanks in advance.