I have Moto G S5 (Android 8.1). I connected it to my laptop (Ubuntu 18.04). I moved some files (about 4 Gb) from a folder in internal storage to root folder of the internal storage.
Transfer happened succesfully. But the File manager of android doesn't show those files in the root folder. And I can access those files from my laptop, but when I try to open it. It shows
Unknown MTP error. The SD card capacity when viewed from Android has decreased by 4 Gb (same as those files), but when I see the SD card capacity through Ubuntu the capacity remains intact.
Please suggest me some steps to recover those files. I tried copying those files back to the original location, but I get the same MTP error.