if you dont use icloud backup, you must know that you already disabled the icloud backup in settings-icloud-back up.
but there is a deep setting for this, go to settings-general-usage-(icloud) manage storage. disable in that too. i get great battery life after disabling that.
but there is a deep setting for this, go to settings-general-usage-(icloud) manage storage. disable in that too. i get great battery life after disabling that.