I have the TomTom go 50 and had the issue following an update. The TomTom Connect says it is up to date yet the TomTom 50 device says no maps available. I tried to install yesterday but it said insufficient space so I purchased a 32 GB memory card today and now I have no maps. The UK and Republic of Ireland map also no longer shows in my maps so I am unable to re install from here either. I have emptied the cache and reset the device.