Galaxy S5 Overheating and Draining Battery after Lollipop Update

[Terry Saul]

I updated my Samsung Galaxy Alpha last night and had the same problems - battery draining at about 1% per minute and the phone getting much hotter than normal.
Tried going through all sorts of options but nothing obvious.
Decided to leave overnight from full charge and see what happened - 8 hours later was on 60% with a battery saver app installed that shuts off all wireless and stops running apps when not in use.
As soon as I started using it again in the morning it got hot again.
Tried enabling the 'Power Saving' option and allowed it to reduce the CPU performance. This immediately reduced the drain and the phone stopped getting hot. Not a great solution but to my surprise when I turned it back off again it did not start getting hot again and battery has only drained a further 15% in the 6 hours since.
Not tried restarting to see if it goes back to getting hot again but looks like a promising possible solution for the Alpha.

 

[Evan Mohr]

Best thing to do is a hard reset.

Posted via the Android Central App

 

[JurgisP]

Yes it is. But even using without SIM card does it.

 

[mspm47]

I am sick of DO A FACTORY RESET. How about better operating system upgrades?

 

[brackenmakay]

If you are doing a factory reset all of thee time it means that there is an underlying issue and you should contact Samsung about it as you may need a replacement.

 

[misha613]

How do I do a factory reset from an off phone since it is stuck in reboot loop?

Sorry, I have a Samsung Galaxy S5

Posted via the Android Central App

 

[CL B]

Hi there forum-- Been reading that backup and factory reset and possibly downgrading to KitKat OS is the answer here. How do I find out which OS I have and if it is Lolipop, How do I downgrade back to KitKat? having overheating/ battery drain issues as well. thanks for any info.

 

[ironass]

Hi there forum-- Been reading that backup and factory reset and possibly downgrading to KitKat OS is the answer here. How do I find out which OS I have and if it is Lolipop, How do I downgrade back to KitKat? having overheating/ battery drain issues as well. thanks for any info.

Hello and welcome to Android Central CL B!

Sorry to hear you are having problems. To determine your phone's OS, what it all means and how to download and flash firmware, see 42 Galaxy S5 models - Dummies Guide

I would advise against downgrading your firmware as you will not get the latest bug and security fixes and your phone could be at risk. A Factory Data Reset might be a better idea and this is described in post #2 of S5 Update Problems - Dummies Guide. Before the Factory Data Reset I would suggest wiping the phone's cache partition as per #1.3 of the guideand see if that helps.