Flash the image below, this is for DM800HDse v1 with Japhar Sim with OS v3-v5,

Image : http://www.ourdreambox.com/ubbthreads.php?ubb=showflat&Number=18363#Post18363

then without rebooting flash the ALLSIM SSL

SSL : http://www.ourdreambox.com/ubbthreads.php?ubb=showflat&Number=290#Post290

Then reboot the box and then go again on the JAM menu in Plugins to flash the sim to v6, let's hope successfully this time.

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/