BPI-F3 4G+wireless OpenWRT problem

Hello,

I have a BPI-F3 and was planning to build a 4G router. I purchased the EC25-E 4G modem, which was recommended by the Banana Pi sales team.

However, it’s not working on OpenWRT — the system does not recognize the 4G modem at all. In addition, the wireless interface is also not detected.

Could anyone please help me resolve this issue?