Now I've got TWO Dead 2800's from Jtagging

[RockyM]

Ugh....saved my current flash, erased flash and reprogrammed in Jkeys. Now I've got two dead 2800's that won't power on. But I can read the memory using Jkeys. PLEASE, someone give me some advice....I'm really bummed out and followed all instructions to the t. I tried Wall, but have no idea what the heck to do.

[tester23]

The Powering up of a receiver is the EPROM's job....Make sure that you use a good virgin EPROM that matches your flash... You should never have a problem powering up a 2800..


tester23

[RockyM]

So now I also flashed with a virgin eeprom that matches the first 3 letters of my build config. Still no power, but I can read the memory thru jkeys. Any other ideas, please?

[tester23]

That isn't good enough the EPROM MUST match the build config of in your flash. If not the same it will not work

[tester23]

Open your flash in Flashedit and build your self a vergin EPROM that matches your flash. this is the only way to get it to work

[RockyM]

OK, I opened Flashedit, opened my flash, and created a virgin eeprom. Now, do i need to erase the flash, rewrite flash, then program eeprom? What steps should I take now that I have a virgin eeprom ready to go?

[tester23]

Now you you will have to erace and rewrite the new EPROM only back
to your reciever..

[RockyM]

Jkeys only option is to program eeprom (I don't see an option to erase it).

[tester23]

Thats ok....You are right.... Reprogram it and use the EPROM that you just built

[RockyM]

I'm in deep doodoo here guys, nothing's working - still no power. Any other ideas??? (appreciate your help tester23)

[tester23]

RockyM

What is the build number marked on your main board. You are going to have to start all over with a tsop that matches your board exactly. If I had your number I will find a tsop that will work for you...

[toyman200028]

If it won't run, put your last working flashes back on it & work from there. Your better off editting your working flashes than trying something you downloaded anyways.

[RockyM]

Well I've got my original saved flash. Guess I'll try creating a virgin eeprom with that, then reloading it all again. I'll post back in a bit.

[RockyM]

No go. Time to get some sleep and come back to it in the morning. My build is CBFA.

[boobookitty]

I had the same problem get wall program eprom from there dont forget to ground out first. I dont rember if ird has to be unpluged for wall or not . What does it say in jkeys with read of chip? check your conections I use homemade jtag {simple} and seems that every few months I have to resolider.

[stickboyz]

yes get WALLS program!

[toyman200028]

No need for Wall if it still writes ok. Wall is for dead 3100s.

[boobookitty]

I had this problem a few times in jkeys the info was half in arbic it looked strange walls got me straight. Thats the only way I could get eprom back in 2800

[RockyM]

I've got Walls. How do you use it? Should I just program the Eeprom or the Flash with it? When I open it while connected to the jtag, it says something like "warning" ID not correct".

[Crazy1_79]

what tsop bin did you write back to it? what did you do to the flash? write your iriginal back if need be

[boobookitty]

thats what my ird stated I thought that was the reson for ird not booting up messed up flash some how. Keep retrying till you get good read in jkeys. Program full orginal eprom in walls. I think that is the answer you were looking for . Oh yeah crazy congrats on your new position.

[RockyM]

Well, after reading the "how to" for the 69th time, I realized something. I would plug the ird into the ac outlet, then connect the jtag. But the how to says never connect a cable while the ird is plugged in. So maybe i fried the ird's?

[specilized_d]

Hey, rocky i read over and couldnt see if you sated this do you have tsop locks installed? i only ask becasue i had a simaler problem and the bin i wrote origanaly before the tsop lock was the wrong bootloader and it gave me a ton of problems, if you have a lock try taking the power completly off and resoldering.... then use jkeys to read the build, bootstrapt to see if there are invalid characters like Z### stuff like tha, and also i mave be wrong but ive never fried any recivers by hooking up a jtag while it was plugged in unless you tried soldering one in with the power on lol, electronics 101

[RockyM]

No locks installed. I have another cheap unit on the way. Any suggestions so I don't run into the same problems when I try rewriting that one?