GS5 randomly shutting off (SM-G900I)

[Kalyori]

I am having an issue with my Galaxy S5 (4 years old) where it randomly turns off. I can't turn it back on, either... I have to plug it back into power and then once the battery capacity symbol shows up then I can turn it back on.

I can be using it one minute, put it down and come back half an hour later and it's off.

I asked about this elsewhere and it was suggested that it could be (or was highly likely) an issue with the battery. Consequently I bought a new one ($50 AUD - from a battery store - not eBay) however the issue persists.

I can't remember the issue happening prior to updating to 6.x, so perhaps it's worthwhile rolling back to 5.x?

Does anyone have any ideas what this could be? Any suggestions as to what I can do to try and diagnose it?

 

[B. Diddy]

Welcome to Android Central! After it shuts off on its own and you're able to power on again, is the battery level significantly lower, or the same?

Does this happen in Safe Mode? https://support.t-mobile.com/docs/DOC-28456

 

[Kalyori]

Welcome to Android Central! After it shuts off on its own and you're able to power on again, is the battery level significantly lower, or the same?

Does this happen in Safe Mode? https://support.t-mobile.com/docs/DOC-28456

Thanks for your reply,

The battery level (I believe) seems to be about the same.

I have activated safe mode now and am testing. Will report back if it does another crash -- may be a couple of days, as it can sometimes take that long before happening...

 

[Kalyori]

Okay, so the phone turned off again. Battery life at 68%. It lasted quite a while, I was hoping safe mode would be the solution but yeah.

If it's not the battery, and it's not apps. What else could it be? What else can I check? Are there error/debug logs somewhere?

 

[Mooncatt]

If the phone is that old, chances are the new battery you bought is old stock. Batteries degrade over time even just sitting on the shelf. So yes, there's still a chance that it is a battery issue.

Otherwise, it could also be a loose connection inside the phone. Even something as minor as a temperature change could be making it open a circuit, simulating a battery removal.

 

[Kalyori]

If the phone is that old, chances are the new battery you bought is old stock. Batteries degrade over time even just sitting on the shelf. So yes, there's still a chance that it is a battery issue.

Otherwise, it could also be a loose connection inside the phone. Even something as minor as a temperature change could be making it open a circuit, simulating a battery removal.

Is there a way to check the manufacturing date of a battery?

I really hope it's not that. I would like to try rolling back to 5.x because I don't recall the issue occurring then, is there a good guide you know of on how to do that?

 

[Mooncatt]

Is there a way to check the manufacturing date of a battery?

If it's not printed somewhere on the battery, then no.