Thank you! @vongillus had mentioned that command above and it did work wonders indeed. Is there any way to completely remove flatpak? What does one have to do?
Additionally I had tried to follow @dukla2000's suggestion to supplement the storage with an SD card but whenever I put one (an older and a very new & fast model, both 64 GB, both Samsung) the phone does not boot (green LED, black screen & nothing else), no matter whether I format them as ext4, fat or exfat. (I had used both of them for Megi's multi distro image before reformatting them.) What could be the problem?
Additionally I had tried to follow @dukla2000's suggestion to supplement the storage with an SD card but whenever I put one (an older and a very new & fast model, both 64 GB, both Samsung) the phone does not boot (green LED, black screen & nothing else), no matter whether I format them as ext4, fat or exfat. (I had used both of them for Megi's multi distro image before reformatting them.) What could be the problem?