Battery draining quickly

[Android Central Question]

Hey, I've recently been having trouble with my LG G3 (model is LG-D851). First I noticed my battery draining very quickly, my SIM card occasionally not being read, and the phone restarting (stuck in restarting loop sometimes). I got a new battery about two months ago and that solved the problem for about a month. In a past few weeks, I've noticed my SIM card will occasionally not work (requiring restart), my phone battery getting used very quickly, and my phone itself will get super hot around the top part of the phone. The SIM card problem is infrequent but still there from time to time. The battery manager says that the t mobile app is using a lot of battery but it also says apps that I don't use much like castbox are using abnormally high amounts. Finally, my phone used to get warm when doing something especially intense on the CPU but now it gets alarmingly hot and when hot the phone stutters and lags. I have tried replacing the sim card, the battery twice, placing paper in the sim card slot, using the phone without sim card, and without SD card. Nothing really has fixed my problem. Is this a hardware malfunction? Is there anything I can do or just get a new phone. Thanks!

 

[Androidai]

Please check your "cell broadcast" or "broadcast channels" if it is enabled and disable it if it is.

Please let me know if this helped your case. This worked on my Samsung J7+

 

[B. Diddy]

Welcome to Android Central! Charge up to 100%, then let it drain to 20-30% with normal usage, without charging in between. Then show us:

1. The main Settings>Battery screen.
2. The fullscreen battery graph screen (which shows Awake time and Cell Signal Strength).
3. The Screen category (to see total Screen On time).
4. The Cell Standby category, if present (to see Time Without Signal).


http://forums.androidcentral.com/ge...ide-how-post-screenshots-android-central.html
You might have to install a 3rd party battery monitor, like GSam Battery Monitor, to get the Cell Signal Strength graph.

 

[stephert]

I disabled service settings under my messaging app, but there wasn't an option to disable emergency broadcasts on my phone. I watched videos of how to disable it and there is no emergency broadcast option under more in settings

 

[Dano1200r]

I usually don't suspect malware immediately, but, you may have malware. I personally have a 10 license Norton malware and virus app. You need to do a scan.

 

[stephert]

Here are five screenshots i took from the gsam app from a charged from 100% down to 20%. I have more pictures from a couple other recordings which I'll post after this.

 

[stephert]

Ok, i scanned my phone with the lookout Security app and it said all my apps were safe.

 

[stephert]

These screenshots were a day after the previous screenshots posted. My t mobile app was using up a bunch of battery life before i reset it to factory settings. The previous screenshots were when the app was in factory settings and these pictures are taken after i updated the app. I believe i found the cause of the t mobile app problems. I stopped the app from tracking location as well as disabled diagnostic tests. These pictures are from when the app was updated as well as when it was tracking GPS and diagnostic tests however.

 

[stephert]

These two pictures were taken simultaneously this morning. I don't understand why my phone is telling me incorrect battery information. One of the pictures is my battery drain reported by gsam and another is my default battery manager. For this battery check, i had stopped T mobile app from tracking location and from running diagnostics

 

[B. Diddy]

It's strange that the T-Mobile app would be using that much battery. Give the app's developer feedback about that -- there's probably a Feedback option in the app's menu. Do you really need the app installed? If not, get rid of it.

The discrepancy in the app battery usage reports might be related to what's being considered part of CastBox and what's part of Android System. It may be that CastBox is utilizing components of Android System, and the native Battery menu is attributing that usage to CastBox, while GSam is considering it mostly Android System. This kind of thing can happen with Google Play Services as well.