How to change the battery in a iPhone 5 (plus 5C or 5S):-
Step1. Turn off your phone by holding down the power switch, then slipping the on screen button to the right.
Step2. Keep all screws somewhere safe, while they are extremely easy to drop if left on your workshop.
Step3. Utilizing the suction cup, use solid (however, not sudden) push above the home button, or to either side of it. So you can begin to pry the screen available, you have to open up a tiny distance. NOTE: when you have an iPhone 5S be extremely cautious at this time.