How to JTAG a DM500

[maraveasp]

I Finaly did it!!!

Hi again,
Finally i found the solution after making a better search on forum. It is a must to connect pin 25 of the lpt that is gnd, to the dm500 metal case and pin 16, so the gnd of the flashing computer is the same with the gnd of the dm500 because as i believe now the reason that was stack in download was because of errors on transfer. It may be better to use a shielded cable and connect the shield to the gnd metal case of the lpt plug and on pin 16 on dm500.
Thanks to every one in this forum because without their problems and solution i don't think i would have been able to do it.

[Ma24]

DM500c was dead now alive again!!!!!!!!

Yes I have try the JTag on my DM500c and with a different blimg file I am up and running. It was dead no light no telnet to box no dream up, no answer from box DEAD now its alive and kicking!

[quarkmaster]

Is now working

I have read all post in this thread and still had problems with JTAG.

But then i tighten the LPT plug to the PC with the screws and then it worked with the dos version.

[BigCeti]

good thanks

[seraph77]

Happy to have some help in this..

Hello,

Just created my jtag cable and now in search of a good bootloader and batch..and now i found what i searched..thank you guys..!!

[kops]

good thanks

[ibrahimnet]

thanks i now trinng

[mebken]

My dream had a good MAC address But THE GEMINI 4.70 detect it as clone. So, I will try the JTAG. Thanks for the tutorial.

[edzez]

Hi
Are you using a Null modem Cable with Dreamup software to put a new image onto the dm500 ????, (Untick use network) this is the only way after Jtagging in a new bootloader.
You cannot use FTP to load image.
If still struggling you could have a hardware problem if no lights on box.
UPDATE : Try this lot (Attached) for DM500 Cable, it worked on mine
jbvid

thanks
thank you very much

[tonymontana079]

Hi all need to jtag my dm500c box which software would you recommend ive got software for the 500 but not sure if its for the c t or s version or if that even matters the other thing i noticed was on a pic i seen of a jtag loads of pins have been joined together need to know which ones thanks please help

[sci4397]

jtag can repair timebomb

[sci4397]

thank i find this tool

[tonymontana079]

hi everyone just tried to jtag my dm500c and went completely wrong melted the contact points off the mainboard. does anyone know where i can order a decent replacement mainboard (closest to original) ive found this one but not sure if its any good http://www.dreambox800.org.uk/Mother...r-DM500C.html#
can someone please let me know if they know anythink thanks

just ordered a replacement board from this site but having trouble with them so be careful when ordering i will update if i receive the board or if its a site to avoid.

UPDATE: received the board now fitted it and all working well so far has been working 3 days so far so i think its safe to say replacement boards can be ordered from here. please note i did receive a different board to what was advertised on the site but still works so still happy. last resort for anyone having trouble with using jtag on their box.

[sakani]

a big great work

[sam36212001]

Problem with "Conect"