DM800 HD Tuner problem or what?

I have DH800 HD clone 3 years ago. It had Gemini 5.1
due to bootloader problem I had to flash the DM
Flashing with Gemini cause Error 0x1800f
and tuner is empty
falshing any other image higher than SSL76 or 76a cause infinate loop or reboots

the SIM is 2.01 as the sticker back of the DM

I don't know is a tuner failer or something wrong I do when flashing or updating looder version

Please help

Thanks for reply
I just want to understand the sequence
Loader first then image
So whyflashing image replaces the loader? I don't think image should contain a loader or It does?
What is the best mothod of falshing loader and image?
I used DreamBox-OptiFlasher-Pro-E2-v2.0.0c
What loaders are compatible with SIM2.01?

still no luck , none of the images I tried worked
booting process not passed.

please recommend an image for unternal flash.

Some displays the boot logo on the TV and then DM hangs
Some reboots the DM while nothing appears on the TV

I tried SSL76, 76C, 82 and 84
Only 76 worked but the tuner problem appeared
with any other SSL , boot process didn't not complete

Please recommend me an image proved working with SSL 84B for internal flash.

How to debug the booting process?

If it won't work what else can I do

No luck too
Dream Lite Logo appears them DM restarts , logo appears again and so on

may you please provide a link for it?

Merlin and Openemended are exactly the same result as Dream Elite.

No I didn't try another PSW , from where can I get one?

But why it's working with SSL76 Images?

I'm sorry for that.

I have nothing to do with it , most probably it's pass it to a local shop may be something can be done. I hope


Thanks everybody tried to help.