There are many reports online about this, and I have just discovered it myself on a brand new unrooted 930F genuine UK phone!
It doesn't matter whether the 64GB FAT32 SD card is in place when TT is installed; it ignores it and the 6GB of mapdata doesn't go there. In fact no new data appears on the SD card at all. The app itself is dumbed down and has no config for the destination anyway. Their tech support is stonewalling and whitewashing about the SD card but it's nothing to do with it. Everything else works on the SD card fine.
I wonder what other satnav apps are as good as TT?
On my Nokia 808 I had Nokia Maps which worked great right down to a little Greek island...
It doesn't matter whether the 64GB FAT32 SD card is in place when TT is installed; it ignores it and the 6GB of mapdata doesn't go there. In fact no new data appears on the SD card at all. The app itself is dumbed down and has no config for the destination anyway. Their tech support is stonewalling and whitewashing about the SD card but it's nothing to do with it. Everything else works on the SD card fine.
I wonder what other satnav apps are as good as TT?
On my Nokia 808 I had Nokia Maps which worked great right down to a little Greek island...