Appendix120A small gap appears around the outside of the device case• This gap is a necessary manufacturing feature and some minor rocking or vibration ofparts may occur.• Over time, friction between parts may cause this gap to expand slightly.There is not enough space in the device’s storageDelete unnecessary data, such as cache, using the device care feature or manually deleteunused apps or files to free up storage space.The Home button does not appearThe navigation bar containing the Home button may disappear while using certain apps orfeatures. To view the navigation bar, drag upwards from the bottom of the screen.The screen brightness adjustment bar does not appear on thenotification panelOpen the notification panel by dragging the status bar downwards, and then drag thenotification panel downwards. Tap → Quick panel layout and tap the Show brightness ontop switch to activate it.