- No problems reading/writing NAND (works after flashing back to stock, compared a dump of my NAND flashed with Xell to the actual 'jasper_6723_hack_for_256mb_512mb.bin' and everything matched up
- Using component cable, tried booting with the eject button and rear USB port
- Resoldered connections multiple times with no luck, only blinking green LED and no video
I have exactly the same problem with my exploitable april ´09 jasper 512mb box, and as you wrote I have also seen/read that more ppl seems to have this issue with their jasper 512mb boxes.
Have been searching for a while now but haven´t found a solution that works. Some of the things I have tried is:
Different wires and lenghts
Different resistors at jumper point
Tested both sides of MB
Tried all alternative points
Formated internal MU
Flashed Xell, Xellous and XBR
I can add that I have jtagged other boxes (not jaspsers) without any problem at all.