upgraded a go500 with the patched 8414 navcore from here and 855.2884 uk maps
i extracted all files to device SD card and overwritten where needed,the maps and voices patched fine etc
but when i switched the device on it just sticks on the tt boot up screen with hands picture on.
so i tried it by removing everything from the sd card and installing the new navcore from scratch,again everything patched ok but had the same boot up problem,so i copied the original back back onto the SD card and it booted up fine.
could the bootloader be the issue
before the upgrade the device was running the following software
APP5.410 5628
GPS1.21
BOOTLOADER3.30
MAPGB V605