The back cover of the phone is made of original materials and undergoes the same treatment. Built-in accessories will not affect the performance of the phone. It can be installed directly on site, the signal is not affected, the function is not affected, and you can enjoy exquisite non-destructive modification installation tips Please test the function of the project before installation Do not damage the socket or damage the components near the circuit board. The screw size is different. Do not overtighten or press them hard.