after many months of working, my DM800 stopped tuning channels.
after rebooting it, the receiver dont finish boot.
after changing the kernel cmdline to output to serial console, i see these errors:

DVB: registering new adapter (BCM7401)
autodetecting NUMs...
addr=41, data=00
ret:2
Found: Slot A, ID: 06 (by CA)
Initializing adapter 0 (DVB-S2)
special BSBE2 treatment:
addr=45, data=ff
fe: read ret=-5
cx24116: i2c error
(failed)

and so on forever last 5 lines...

any hint? i hate sending back to DM and wait months to have it back...

is replacement DM800 tuners availables somewhere?

I already tried asking but i'll try again...

...anyone has discovered+used the internal USB port of the DM800?
It seems it is powered but not enabled/used by kernel.

Why no DM guys explain us why that port is there?

It's a pity not enabling+using that...

thx. one mistery less!

is it to avoid DB clones? who use it? i dont understand these kind of "security checks" because they could be easily skipped using patched fw/drivers.

anyway, thank you for the reply.

any idea about the USB connector?

Hello there!
My first post here.

I am an happy owner of first DM7000-S since its born date.
I'm an embedded linux hacker, too.

Now i bought a DM800.
Today i have open it to install a SATA 2.5" hard disc and i discovered some undocumented stuff inside the receiver:
- 256MB of RAM (instead of 128MB used by linux kernel)
- 3rd USB port (it seems powered but it seems not be detected/enabled by linux kernel)
- embedded SIM-size smartcard reader + SIM-size smartcard (what is it?)

Anyone can explain me more on these?

Thx in advance