I have a Huawei phone. When I delete pictures in the gallery, they are back shortly afterwards. (saved on sd card) I already emptied the cache from the gallery but it does not help. What could be the problem?
Reset to factory settings
It could be that you brought a virus on "ominous pages" I would reset it to factory setting if that does not bring anything you have to renew everything
I've done it already. But the pictures are on the SD card
I already tried
Connect the mobile phone to the PC and delete the pictures from there
Does your phone automatically sync images to your Google Account? Then you have to delete them as well (on Google Drive and Google Photos)