Hey @Hosay_299 ,
Happy to have a look at this with you. May I ask where are these pictures saved? Have they been displayed on your phone before? If so, would you be able to tell me what phone are you using?
In order to display your phone pictures on your tab, you will need to have the same Samsung/Google accounts set on both and the sync switches on.
For the Gallery you will need to have this enabled from the Gallery app> Menu (2 horizontal lines bottom right)> Sesttings> Sync with One Drive.
This post may also help you: https://www.samsung.com/us/support/answer/ANS00048749/
Hi again @Hosay_299 ,
sorry for the delayed response. Do you have issues signing on to your account using one of the devices? If so, which one?
Is OneDrive fully up to date? You can check if there are any pending updates from the Google Play Store> Manage my apps and device> Search for the app> Update.