Chosen Solution

Hello, you only need one screwdriver (T3 Torx) to open up this phone. If you don’t have money to spend on this kind of items (tools) just buy the T3 Torx screwdriver. But if you have the money i would recommend Ifixit pro toolkit. And a quick tip buy all tools from ifixit (if your money allows) because they have life time warranty. T3 Torx Screwdriver Pro Tech Toolkit

Just need the ifixit driver kit . HERE