Hello, i tested gxl_p212_1g.dtb, gxl_p241_1g.dtb and gxl_p241_v2-1g.dtb on Vmade S905D (p231) (Vmade S905D 1GB hybrid OTT DVB-T2/S2 support) and all working 
. With original p231.dtb i have only black screen. Is possible make the same change for gxl_p231_1g_dvb.dtb?
Thanks!