Ok, then are you sure the sim is a Japhar Sim ?

1) Confirm it's a japhar control visually that it is exactly as below,



2) If its a Japhar Sim you will have to do this

- Install the image below without rebooting, and flash the ALLSIM just after. Then only after reboot.
Image : http://www.ourdreambox.com/ubbthreads.php?ubb=showflat&Number=18356
ALLSIM : http://www.ourdreambox.com/ubbthreads.php?ubb=showflat&Number=292

- Install the JAM (if it's not on the plugin menu)
Code:
cd /tmp
wget http://jam.japhar.com/download/addons/Japhar-addons-manager_5.2_DM_oe20_mips32el.ipk
opkg install --force-overwrite *.ipk


- Go on the JAM Menu ("Support Japhar Sim v3-v5-v6") and launch the "Japhar Sim Card Flashing DM800HD v6 (0)" on the menu, it will take few minutes and reboot few times.

Once the image reboot and goes to the GUI/Menu, the process should be finished.

You will then have to flash the Japhar image OpenPLi 7.3star, and all should work.

TS
_________________________
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/