HDMU for Openbox S7 ?

[clown]

Hello,
wich version of HDMU i can use for OpenBox S7 .. (HD-BOX FS-9200) ?

I have installed generic USB HDMU HDMU_11940_E2_hdbox_209_git_5580_nodebug_mix_USB.t ar, but my reciever often freeze (HDMU logo dance).
Mainly STB freeze when i want to see EPG and scroll up / down. After cca 5 seconds channel preview freeze, and i can't do anything else. OK .. i can forget to use EPG.

If i leave STB unattended for few hours (powered on) and come back, it somehow stop to switch between channels, when i press MENU key, HDMU logo appears and "dance" on left corner.

But everytime is STB accessible via tlenet / ssh.
Installed modules are still accessible via web if
Uptime says correct times and cca 14 - 16% of CPU usage whole time.

So only reboot via console or HW switch help me.

Do somebody have any idea ? Is there so debug tool ?
many thanks

Tomas