In Terminal app run commands: cd ln -s /run/user/100000/media/sdcard . (Notice the dot at the end of ln) After that you can access the microSD card with USB MTP (Jolla's normal PC connectivity) by going to directory "sdcard". WFM. No warranty Edit: (And you probably can escape to the root directory of Jolla by similar commands but I haven't tested this. There is danger that you can brick your Jolla with escaping to root and then going around and fiddling, especially if the permissions and priviledges are not right.)