If your Samsung Galaxy S7 power button doesn't work properly, it is likely because of the damaged flex cable. As an important part of the mobile phone, the flex cable serves to connect its various parts. It is of great importance not to damage it because if this happens your phone will not work properly.
Please note, we can not guarantee that the device remains waterproof after the repair.
It is not necessary to waste your money since the advantageous price we offer includes the Samsung Galaxy S7 power button flex cable + the repair.