...tton does not work anymore? In reality, the problem does not come from the buttons that are just pieces of plastic but from these iPhone 4S tablecloths. They slip under the buttons to create this pressure effect and transmit the information to the motherboard when a button is pressed. The iPhone 4S tablecloths are very fragile and can wear over time. Fortunately SOSav has selected the spare parts iPhone 4S you need to solve all your worries. Moreover, we accompany you throughout the process through illustrated and commented repair guides.