Hello I have read many users concerned about their battery life and drain in the S21 Ultra. I have attached a screen shot of mine... is this a good outcome? I understand its a new phone and there will be teething issues and software updates. I currently have AUB6 on version and there is a new one waiting to install.. . Dare I install it?? And can you revert back to the the one once its installed? Thanks 😊
