Hi any techy folk out there - my dad bought a galaxy 6 phone in august (NOT EDGE - just ordinary) , he couldn't use it so he gave it me , now when I charge it it gets stuck on anything between 74 - 80% charge & won't fully charge if I leave it on all day , I have cleared cache , had a flash reset at Samsung place on commercial st & done a full factory reset myself , downloaded app called "battery repair" yet it still won't charge , any ideas ?
it seemed to happen suddenly rather than over a period of time (the phone is only about 5 mths old)