How to jtag and flash Pansat 3500

[grasshopper]

C/B

After many days of searching and asking questions and trying things, I have finally successfully jtaged my dead 3500, bringing it back to life. I would like to share what I have learned.

First you need a jtag cable. You can buy one or build one as lovy describes in this forum. You will also need two programs, Wall and Skymax, wich are included below. You will need a flash bin file, also included below.

If your ird is completely dead, you need to establish if is is a flash problem or a power problem. This can be done 2 ways. If you have a dc volt meter you can check the voltages coming from the power supply. The powe supply is the board to the right, looking from the front of the ird. The voltages are printed on the motherboard where the power supply plugs into it. If you don't have a meter. turn the unit on for about five minutes. Feel the heat sink on top of the prossessor. If it is warm power is probably OK.

Identify your flash chip. The flash chip is directly right of the prossessor. Numbers endin in BBTC-70 are 1 meg, CBTC-70 are 2 meg. The flash file included below is for the 2 meg but I'm sure there is a 1 meg floating around some where.

Ensure that your PC parralell port is set for 2 way comunication, EPC works best. Attach your cable to the unit and to your PC parrallel port. Turn the unit on. Open the Wall program. A warning will pop up. Just click ok the click "Refresh Items". Now open Skymax. Click whichever chip you have and then what port you are using. Click start. If there is comunication it will show in window. Click erase. After erase is complete, click write and use the included bin. After writing is complete, turn off unit , close programs and disconnect from PC. Turn unit back on. It should light up, show B-70 boot file then go to a channell. Now your up and running again.

After you get to this point you can use the serial cable on the back. Load the B-80 boot file and then the lates app bin. You will have to go in and reset the sats to your lnb configuration or reload your own channel list. If you have a channel list backed up on you SD you can reload from there.

This worked perfectly for me the first try, but that doesn't mean you won't have problem. If you need help, PM me and I'll do what I can.

Use It As Your Own Risk