Custom rom with Freedompop

I currently have the G2 with freedompop, it works fine on the stock rom, 3g, lte, etc.. but tried cyagenmod 12.1 3g works, lte doesnt, tried a stock sprint rom, thats been de-bloated etc, still 3g works, no.. lte. Anyone using freedompop and using a custom rom? or know how to fix the lte? I've tried flashing mutliple apn fixes found on the forums, none worked, some maybe it never connect to 3g,