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 ...