Try this image, I just built,

Your box is a DM800HDse v1 ?

MEGA : https://mega.nz/file/1F8nAI6J#5t1be4_BoHSpUeK5iiGUNolE-sOIF53_uawP3S7HlW8

This Wifi Dongle is much more common (Ralink), should be good.

TS
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DM8000, DM800se, DM500HD, DM800HD, DM7025, DM7020s, DM7000, DM500s
VU+ Solo, VU+ Uno, VU+ Duo, Kathrein UFS910
Tivusat, TNTSat, Fransat, SSR/TSR, BBC1-2-3/ITV
DE-OpenBlackHole 1.4 image : http://www.openblackhole.com/