Dm800 boots sometimes, very moody. possible flash damage?

[trance]

Hi people, ok I'm trying to fix a friends dm800hd clone. The problem is , it has become very moody when it boots up, I would say it freezes whilst booting 1 in every 3 times. Sometimes on certain images it wont get past the booting process at all [perfectly good images which I installed on other dm800 clones].
I have tried at least 5 different versions of open pli [fresh, aswell as backups. even the doods backup floating about online] Some initially work then refuse to boot/stuck on boot cycle after restart. Others just refuse to get past the booting bar process.
Is the flash memory damaged in anyway, As when I received the box from my friend, the flash was running at 99%. The image was blackhole v1.66 . The autobouquets e2 refused to work for lack of space.


So to some up, I can flash images to the box, but they get stuck on boot occasionally/randomly
The box in question is a clone DM800 HD SSL84B Production date 08/2012
Any help will be appreciated
Thank You

[southpaw]

There is an option in dream up to "repair bad sectors" . Think optiflasher has it too, I would start with that.
it's pretty hard to diagnose were the problem lies but if it's a software issue then a crash log would help ,
Might be a good idea to try a different power supply too
Good luck

[trance]

Thanks for reply, Yep tried another psu still having mood swings. One new development is , if I leave the box when its stuck ( for 4-5 mins) it eventually boots up
what is going on ,
Im gonna try the dreamup/optiflasher bad sector fix, once I get the jist of it.

[WOODWARD395]

I would re-flash with the latest boot loader then re-flash image, I had a similar problem re flashing boot loader cured the problem worth a try.

[trance]

thanks for your input,
I flashed a fresh openpli, took out the tuner. It seemed to boot up most of time without issue. Also after I reseated the tuner, it seemed to boot up most the time.
Now it hangs maybe 1 in 5 boots[ and only at the very start, the boot.jpg bit. Before it was during the bootup line across the front screen]
I think this is as good as it will get on this particular dm800 so Ive given back to the friend.
Thanks

[cboyer]

have you got it sat on a fan? i had this same problem till i got a fan about 3 quid off amazon sometimes wouldnt boot up then when it did it would crash a lot

[trance]

have you got it sat on a fan? i had this same problem till i got a fan about 3 quid off amazon sometimes wouldnt boot up then when it did it would crash a lot

nope no extra fan ,
it does seem to be stable(ish) now though, since reseating the tuner.

[alland]

Looks like the boot loader.

nope no extra fan ,
it does seem to be stable(ish) now though, since reseating the tuner.

Hi i have recently had the same problem with a DM800hd and a DM800se both clones.

First of all check that the internal fan is running. If not the problem lies there.
You can buy replacements on E""y for around ?3.
If the fan is running then I would suggest using the no CA error fix which replaces/repairs the boot loader.
Make sure you know which boot loader you have which matches your intended image, and you know how to use this tool.
Plenty of tutorials available.

This is fairly easy to do and 9 times out of 10 does the job.
It does sound like your boot loader is slightly corrupted.

Hope this helps

Allan