I have a iphone 6s (its on contract with ee, not due upgrade til April 2022) Last night put it on charge as I always do, set alarm for the morning. When I woke it was completely dead! since i have tried to charge it to no avail! tried multiple chargers still nothing. all I everytime i put it onto charge is the battery with a red section on left side of battery. can anyone offer any guidance please? thank you
