Jtag repair Dreambox

[alunfennell]

Jtag repair Dreambox & video

[ame="http://www.youtube.com/watch?v=SxQB1fRs1fc&feature=related"]YouTube- Dreambox 500 Jtag Tutorial[/ame]

[krazylegz]

thanks alun...made it a stickie

[vergil7]

Picture 1 Picture 2 ?

Alun,
I cannot find picture 1 or picture 2 with your posting where are they.

[cazaconejos2]

I need the Dreamflash ,where i can dowload?

[alunfennell]

You can get it from here and the link below will help you restore every thing you need.

http://www.digital-kaos.co.uk/forums/f39/essential-tools-your-dreambox-11500/

Regards:
Alun

[vniekjd2]

Bomd 500

To un bomb dm500

[vergil7]

Why do so many Dreamboxes go on the blink

Why do so many Dreamboxes go on the blink ?. I bought my Dreambox 500s

two weeks ago brand new from China , It worked okay the day that i received

it, But the very next day it was as dead as a dodo, I have checked photos of

originals with photos of clones from China and it dose'nt seem to be a clone,

So again i ask why do they all go bang. I would love to know the answer.

[alunfennell]

When you say a Dreambox clone, do you mean your Receiver has the Dreambox Logo on the front of it ? If so the Replica Dreambox are very poorly made imported from China, on the other hand if you have a Eagle Linux or BlackBox Linux Receiver these are better than a real Dreambox and Dreambox themselves have even said this themselves.

All I can sugest is send your receiver back to the dealer you bought it from even if its online.

Stay away from replica Dreabox's there Crap! after all its only the logo your paying for not quality, or buy other clone receivers such as Eagle or Blackbox

Differance:

Replica = has the dreambox logo but is very poorly made and realy poor tuners.

Clone = eagle + Blackbox that do not carry Drembox logo's or pretends to be something its not.

[vergil7]

Eagle satellite Receivers

Are these Eagle Linux satellite receivers that are on Ebay at present the ones

to buy ?.

[alunfennell]

By all means the Eagle Linux and Blackbox 500s are a good buy of course do not load Gemini software onto them, but for these two receivers the support is the same as it is for the Dreambox 500 series.

[pamandon]

bonjour, g 1 clone detruit par timebomb, je voudrais essayer jtag

To un bomb dm500

[sorin8m]

I try to recover but can't establish conection?
can someone tell me some other interface to easy connection?

[grimelinse]

thank you my friend is ok

[bero7]

The connections are:

Picture 1 referance....


LPT--------------> Dreambox/Clone

2 --> 100 ohms --> 11 ( Halt)

3 --> 100 ohms --> 9 ( Tms )

4 --> 100 ohms --> 7 ( Tck )

5 --> 100 ohms --> 3 ( Tdi )

11 --> 100 ohms --> 1 ( Tdo )

25 ------------------ 16 ( Ground)

Picture 2 referance.........

Th pins 18, 19, 20, 21, 22, 23, 24 e 25 of the port LPT must be shunted between themselves, like commercial jtags has.


Now, The cience of the thing is doing the connect and turn on the box at the same time.



With the tests done I've understood better how it works great:

The secret is in 1? do connect to the program and then turn on the clone, but with a certain delay. This delay depends on the speed of your CPU, the faster CPU's, minor the time/delay (between 0 e 1 seconds).

Change the priority of the program jtag_windows.exe on the task manager for the real time which must turn more real the delay itself, once the program will give maximum priority of the use of the CPU.



About the timming, if it shows you only "ERROR:register test failded" then the jtag is ok, but you have turned on the box sooner then expected, if it shows you the 4 times "ERROR: communication with LPT/JTAG", then you must turn on the box sooner, or the jtag isn't ok.

Remmember that you must connect the box always after making connect on the program.



After you must warp/straight the pins on the adaptor switch of the box, so it fits faster on the electric switch.

By end, you must use an electric switch easy to fit, I have used one triple (from the bad ones), but I had to dismount it and press their electric pins to don't make bad contact.

When doing "write" the program sends immediately the boot, that is the file "blimg".

The file present in this attachment is the boot of a DM500 and tunner ALPS of CRC-32 9055B110, once again thanks Matrix10, because I've tested a boot that were supposed to be for the DM500 and ALPS and it didn't worked, and this one in the attachment is guaranteed it works.

after sending the boot of 128KB by Jtag, you can turn on the box with dreamup and by rs232 send an image

how many posts before i can download?

[jouz]

JTag

Hi
Im new here. I m trying to jtag my dreambox but for some reason I can not manage

Is the 74LS245 needed