für YAM Installation dies beachten: (steht aber alles in dem zweiten link, den ich gepostet hatte)
"Be careful when renaming the firmware files and putting them on the SD card for firmware upgrade.
The controller file should be named AMBIKA.BIN, and you need to put six copies of the voice card file named VOICE1.BIN, VOICE2.BIN,..., VOICE6.BIN. It’s all in the manual .
If you mix up the controller and voice card files you may end up in this situation."