Xiaomi
Allow Gallery Access to SD Card auf Xiaomi
Xiaomi phones running MIUI treat the SD card as separate storage from internal memory. Android requires every app to request explicit permission before it can write to or delete files on that card. Gallery is no exception, so if it was never confirmed, saving new shots to the card or removing old ones simply fails silently or shows an error.
This permission dialog only appears once per app and storage device, which is why it can be confusing to find again if you skipped it or tapped the wrong option. The system remembers the choice until you clear app data, factory reset, or swap in a different SD card.
How to grant the permission
Open Gallery and tap on Next when prompted, then tap on Give permissions. Open the menu and tap on SD card, then confirm with Allow Access to SD card and finish by tapping Allow on the final confirmation.
If Gallery already shows your SD card photos but still blocks deleting or moving files, repeat the same steps to re-trigger the permission dialog. This is also the fix if you accidentally denied access earlier.
If files on the card are missing entirely rather than just locked, check whether the card is mounted correctly under storage settings before troubleshooting permissions.