I can access my android phone using the folder
/run/user/1000/gvfs/mtp:host=XXX/SanDisk SD card in Krusader. But it is very very slow and krusader shows, that there is no space left in the folder and I cant create or copy files there.
When I use thunar or just the terminal with the same folder everything works fine.
Iam using Krusader on a Xubuntu 16.04