My S4 is approximately one and a half years old, has been used intensively and gnawing violently on its technical obsolescence. Although my socket is already exchanged, I had to charge the phone in recent weeks serious problems. Both, as well as breaks off the loading process from permanent to start a few seconds later, both on the PC connected, as well as directly to the charger. With this cover, all these problems history without having to send the phone in for repair (Unrooten, make backup ectpp.). The only real downside is that my old Hama Bumper / the protective cover does not fit, the Samsung about his last months must spend naked and it has become a little thicker and heavier, but I did not feel a disadvantage purely subjective.