A really Bricked DM800HD clone

[SatSIE]

HI ,

a few days ago after rgh my Xb360 with lpt: succesfully i found also my 2 years ago bricked dm800hd pvr clone with the CA ERROR!
So i took it a part with the idea to jtag it.
This becuz all other tricks didn't workout : updates with webinterface not possible, nullmodem cable with dreamup, optiflasher pro and NCF Sim2 also.
rs232 cable not working . And last but not least .The leds on the ethernet connector green and yellow both are on when i put power in the box.
Now what i need to know is :

1- the location of pin 1 on the tjag connector located behind the ethenet connector
2-what program to use for flashing thru Lpt:
3-can i flash a complete image.nfi ? cuz second_stage bootloader is not enough becuz of the defective ethernet connection ?
4 and is this the right format for flashing ?

It's quitte a list but the priority goes out to the pinout of the jtag connector.

Thx in advance.

 

[nedec]

try with new sim card

 

[SatSIE]

try with new sim card

I have a Sunray Sr4 probably a clone too with Sim2.10
Can i use that one instead ?

 

[Brummie]

what sim was in it in the first place

 

[SatSIE]

I thought it was a sim2.01

Thx for replying

 

[Brummie]

do you still have the sim, you might be able to get rid of the NO CA ERROR with the correct bootloader and image

 

[SatSIE]

do you still have the sim, you might be able to get rid of the NO CA ERROR with the correct bootloader and image

Yep its a 2.01 and the last i remember seeing was a red with blue sim2 logo and something with #84 in the display.

But my prob is i cant use the ethernet port and the serial port. Guess they're broken.
Thats why i need to now the location of pin nr. 1 on the jtag connector so i can flash it with the wiggler jtag cable. Cuz if one is put the cable upside down onto the jtag connector
i believe it could destroy the hardware becuz of the vcc3.3 voltage on pin 14.

 

[Brummie]

see if any of these help you out

h**p://xtal.lewdesign.com/10-elektronik/7-debrick-and-jtag-of-dreambox-dm800-hd-pvr

h**ps://www.google.co.uk/search?q=DM800+jtag+pinouts&biw=1280&bih=641&source=lnms&tbm=isch&sa=X&ei=fy9pVJmGG9HuaIzmgPgB&ved=0CAYQ_AUoAQ

 

[SatSIE]

see if any of these help you out

h**p://xtal.lewdesign.com/10-elektronik/7-debrick-and-jtag-of-dreambox-dm800-hd-pvr

h**ps://www.google.co.uk/search?q=DM800+jtag+pinouts&biw=1280&bih=641&source=lnms&tbm=isch&sa=X&ei=fy9pVJmGG9HuaIzmgPgB&ved=0CAYQ_AUoAQ

Tnx for the above ** .but i know the pinout of the connector.
The problem is .. If i face the connector looking from the backside of the DM800
where starts pin 1 ? Is it on the left..front row or back row. or is it on the right ...front row or back row.

starting with that knowledge i can build/rebuild my lpt: cable for connecting it up to de paralel port on my pc.

 

[SatSIE]

Tnx for the above ** .but i know the pinout of the connector.
The problem is .. If i face the connector looking from the backside of the DM800
where starts pin 1 ? Is it on the left..front row or back row. or is it on the right ...front row or back row.

starting with that knowledge i can build/rebuild my lpt: cable for connecting it up to de paralel port on my pc.

Update!!!
It seems that i have to replace the max3232 chip placed on location U17. bcuz both leds
(green+yellow) on the ethernet connector goes on when i put in de powercable.
Today i did order 3 chips for just 0,99$ in chinatown and just have to wait for arival.

So, will be continued....

 

[SatSIE]

Update!!!
It seems that i have to replace the max3232 chip placed on location U17. bcuz both leds
(green+yellow) on the ethernet connector goes on when i put in de powercable.
Today i did order 3 chips for just 0,99$ in chinatown and just have to wait for arival.

So, will be continued....

Finally, today my soIC's arrived.
I already had desoldered my (Defective) ethernet IC on place U17.
So today 18-12-2014 all i had to do was just solder the IC in place. So i did
After doing the job i powered the motherboard and noticed the ethernet port had
no longer both leds on.. So this problem is solved..

After that i used Optiflasher to flash a nice new Secondstage bootloader into my box.
and used my browser for flashing an updated OpenPLI image.

Now i'm a happy owner of an self repared 800hd PVR box . And that for just 0,99$ and a
lot of waiting for the soIC max3232cse.:thum: