I have an iPhone 5 and it’s a bit buggy at times but generally okay. But when I plug it in to charge, using an apple charger and cable, it just goes mental. Just hangs for ages when I try to unlock it, type a text and it freezes for ages mid way through. What’s going on?
EDIT: good suggestions above re app updates / icloud
Sounds odd. As above try a different cable and/or flip the cable over. As it’s a 5 it can’t be an iOS11 issue (have had issues with two iPads on iOS11 not recognising the cable occasionally and thats a documented bug in iOS11 Beta testing)
...and we need you to agree to it before continuing on to our website.