Some years ago when I first updated my TT One with GPS Underground before it closed originally, where I could not use a 4G SDHC with a large map and was suggested at the time to update to Ver 5.5106.
But now it looks if I have same problem with my sons GO500, his boot is Ver 4.86. His 'GO' will not start with a SDHC with the same files as mine with the new 865.3245 WesternEurope 2G map.
I can't find any info of how to install the latest Boot for the SDHC.
Help please.
thanks
The Boot, Navcore and files etc are all the same as my card which is OK in my 'One'.