SamyGO

Himmm.
Can we have your exact model number and versions?
And did you flashed back to 2005.0 from 3000.2?
Is exeDSP killed? Could you switch channels?
Upside down and working as needed?
What is version number at file /mtd_exe/versioninfo.txt?
Early days at SamyGO forum I remember something like that. It also standart behaviour when you restart exeDSP .
I think it could be restored. I don't remember if it's possible with factory reset option. If I were you, I try factory reset.
THanks.

nilusalex wrote:Now TV works perfectly! Thank you!

But, if I understand correctly, your success is possible only because you have installed Telnet Enabler into TV memory before upgrade to damned firmware 3000.2. So there is no way for others which have no Telnet Enabler?

If problem gone away, It's good

For other persons, AFAIK there is a way to boot alternative firmware from USB flash with using exlink.
you needed to stop bootloader and load new images. You know there is a way. But We don't make it clear now.
I guess wait for a week(s) will let you return back to older firmware.

i would suspect that every signature is bound to TV`s UDN,
at least that`s how i would do it if i had to do it right.

That means no, it "should" not work, but try it.
alex has just to copy his version to USB, pack it and upload it here.
i think the signature file should be copied with it.