Phone brands are completely different from each other. Some brands do not use any buttons on the phone screen, some brands give importance to battery quality, while others care more about durability. No matter how different these choices are, the problems are always the same.
We recommend you to fix the screen, battery, camera, charging port, headjack and other issues onsite using OEM parts
Whether your screen is broken or need your battery replaced, you can get it fixed by certified Apple service providers and Samsung Repair services.