Galaxy S3 gets really hot

[alemosman]

I recently flashed my new Boostmobile Galaxy S3 with Stock JB 4.3 unrooted with An official Stock Sprint S3 ROM JB 4.3. After doing all i wanted to do with the phone it works 100% but the battery drains quickly and the phone gets really really hot at random times and even when its not in use. I tried an app called "Usage Timelines" to see what eating my phone up. And found out that Total CPU Load can be 80%, 90% And even 100% but the remaining apps are JUST 0% except for KNOX. CAN SOMEONE HELP ME OUT.
Sent from my SPH-L710 using xda app-developers app

 

[bradley129]

This is not a result of your flash. Sounds like a hardware issue.

Sent From My Smoking Hot Galaxy SIII

 

[flynhawn2002]

I recently flashed my new Boostmobile Galaxy S3 with Stock JB 4.3 unrooted with An official Stock Sprint S3 ROM JB 4.3. After doing all i wanted to do with the phone it works 100% but the battery drains quickly and the phone gets really really hot at random times and even when its not in use. I tried an app called "Usage Timelines" to see what eating my phone up. And found out that Total CPU Load can be 80%, 90% And even 100% but the remaining apps are JUST 0% except for KNOX. CAN SOMEONE HELP ME OUT.
Sent from my SPH-L710 using xda app-developers app

Try going into stock recovery and doing a factory reset. That may clear some issues?

 

[bradley129]

Try going into stock recovery and doing a factory reset. That may clear some issues?

Its not because of the flash but he may have downloaded some app that is doing this so yea factory reset sounds good :thumbup:

Sent From My Smoking Hot Galaxy SIII

 

[alemosman]

3G heating it up

Its not because of the flash but he may have downloaded some app that is doing this so yea factory reset sounds good :thumbup:

Sent From My Smoking Hot Galaxy SIII

Thanks guys for your reply, After a day of monitoring i noticed it only heats up when the data is On because Its normal with data off. even when on wifi it doesn't heat up. @bradley129 yes i suspected its not the flash but it started after i flashed the sprint ROM.

 

[lrandolph]

I agree, I've had the same problem. I flashed the OTA update with Knox removed--no special ROM or kernel or anything. Right after, my battery started draining quickly--like today I was at 38% after about 4 hours of the phone just sitting there. And the phone has been very hot--leading me to believe that something is running nonstop--most likely something that I don't WANT running.

So, after looking around, I found a few things. There are a couple of settings that the OTA decided to change on me.

• One of them was this "nifty" feature of flashing the flash when the phone rings. I don't get that many calls, but still. Fix that by going into SettingsMy deviceAccessibility, then check and uncheck Flash Notifications (near the bottom)--yes, it's not checked. But it is checked. Nice feature.
• Sprint connections optimizer--is now performing wakeups and staying awake. I turned it off.

I also found this thread and installed a couple of apps to help me find other culprits. http://forum.xda-developers.com/showthread.php?t=2357417

• Greenify
• Battery Doctor (since the Better Battery Stats cost)
• Wakelock Detector

I didn't go as far as the post did. I basically ran the Wakelock Detector and identified Connections Optimizer as a bad guy. And looked with Battery Doctor at what was using the most battery. And used Greenify to turn off some apps that were waking up that didn't need to--like my yoga app, and Pandora (both of which I use infrequently anyway).

I recently flashed my new Boostmobile Galaxy S3 with Stock JB 4.3 unrooted with An official Stock Sprint S3 ROM JB 4.3. After doing all i wanted to do with the phone it works 100% but the battery drains quickly and the phone gets really really hot at random times and even when its not in use. I tried an app called "Usage Timelines" to see what eating my phone up. And found out that Total CPU Load can be 80%, 90% And even 100% but the remaining apps are JUST 0% except for KNOX. CAN SOMEONE HELP ME OUT.
Sent from my SPH-L710 using xda app-developers app