My cell phone (Huawei Mate 10 lite) is broken, jumped bildschrim, now to deliver I would have to save everything and look that nothing is lost, I can't save all the settings and just seperat and insert everything again, for example by copying everything on a usb stick when connected to PC, because on son storage media so only app data and pictures and so stored as far as I know
For this Huawei has the app "Backup"