Hello!
I'm fighting again a Multi AES wich no boot

the symptoms are:
- White screen with no SD (normal).
- With SD card: Black screen with little shade of grey in the upper portion of screen (seem to be the backround of the menu but totally empty, only the black backscreen with grey shade in top).
- The AES reboot after 1sec (with SD card of course).
My little troubleshooting:
- Have try another SD Card (1GB old model): same problem.
- Correct directory structure/tree.
- Flashing "seem" to be working: The x3 files in update directory disapear after the procedure (3sec, the screen showing garbage tiles, seem to be normal.. after a reset).
- Menu updating doesn't work (menu directory in update stay filled after a cold start).
I presume the STM32F seem to be OK with the SPI link (working FAT subsystem).
The reset line on the prog/cartdrige connector pulsing low (active) after 1~2 sec (after the black/shade screen).
Doesn't know if it's onboard watchdog result or multi prog board command (the last i presume?).
X2 LEDs on the Prog board (D2, D1). D2 (the first one, near the SD socket) is lighted green. D1 is off. (D1 utility ?).
3,24V on the prog board.
4.96V on the same board.
68K Adress bus (on edge/connector) pulsing before reset.
Always in the adress bus 16622 bridge seem to be working (great job and protection with this component).
Don't verified all the 245 buffer

Pushed a little the BGAs packages in case of a bad solder...
A lot of test pads wich is great.
This board is a jewel and i presume a lot,lot, lot of job for routing but ... x8 layers
