CPU suddenly maxed and will not throttle down... - Verizon Galaxy Note 4 Q&A, Help & Troubleshooting

So as the topic says. Today about 1pm, long after any apps have been updated and i even rebooted. I noticed my phone started to become hot in my pocket. I Pulled it out and noticed that the battery had gone from 60% to 20 in matter of 20 min since I last looked at it. So did the normal, reboot, clear cache, nothing. Still getting super hot after turning it on for just a few min. So I let it charge while it was off, as it nuked itself to death in about 30 min from 60%. I did a full system reset, installed a cpu monitor right away, still maxed at 100% even after a full rest. I had not at that point install/update any apps.

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[Q] Battery draining faster than stock

Running Syndicate and Genocide.
I noticed last night that the phone dropped from 97 to around 86 within a 20 minute period of just moving icons, etc., normal stuff.
Let it charge all night, unplugged it this morning, and it says 97 instead of 100.
Am I misssing a step? Do I need to set something, calibrate something?
I even turned down the brightness.
It is normal for the phone to vary between 100 to 97% on charge. This keeps the battery from overcharging. As for your issue of losing so much in 20 minutes with brightness down, perhaps some apps were syncing while your screen was on. Grab Memory Booster Lite and check task killer for all the apps loaded in memory and see which ones you don't really need and which ones may be running a sync. Set all syncs to manual or never. Go into applications>running services to see what else is using your battery while the display is on.
Sent from my SPH-D700 using XDA App
You know what, you are right, my Google Music was syncing up as well as my Work email.
I will monitor it today and tonight and see how it does. Thanks.

[Q] Massive battery usage - NOT YOUR USUAL

I went to take a nap, left the phone on the office. It had Play Store, Chrome and StackAnywhere running (Chrome has an SO page open), the latter two being in the background for two days so probably just cached. When I woke up 10 mins ago I saw the phone's screen was sort-of on, it was grey and the phone was unresponsive. I pulled the battery and tried turning it on - Google logo then off. I plugged it in the charger it turned on and - 0% battery. WTF?!
http://imgur.com/a/psqk1
Those pictures say it all. Android OS has 5m 48s CPU total, but 5h 30m 55s keep awake! Apart from that page BBS doesn't say anything, since I didn't have it installed.
The phone is running ARHD 4.0.1 with GLaDOS kernel V1.34 - extremely reliable combination so far.
I had some oddities with glados kernel. No reboots or shut downs but some very peculiar behavior that has scared me away from that kernel.
...

[solved] huge battery drain

Weird thing happened to me since saturday. Without any change of usage, my battery drains terribly fast. I didn't install any new apps or changed system settings. Today, i just listened to music via Bluetooth for about 30 minutes and battery went straight to 80%. There aren't any other noticeable wakelocks, so i'm running out of ideas what causes this drain.
Ideas, anyone?
(for the last screenshot, i set a custom reference and left the phone completely off for about 30 minutes. 5% battery drain without doing a single thing seems way to much for me)
Update: seems like the sd-card caused the issue. I removed it for about 10 minutes and re-inserted it while the device was running. Removing the SD, powering down the phone and inserting it again _before_ the phone starts seemed to help. At least i'm back at 1,4% per hour now.

[Q] Unexpected shutdown when battery is low

Recently my N7(2013) will shut itself down when the battery is low (about 10%) without any warnings, not even the "Shutting Down" dialog that it should show whenever it shuts downs (except for the usual low batt warning when it reaches 15%). After the shutdown, I cant even turn it back on not even the screen, nor the low batt (waiting for charger) screen is showing up until I plug it into a power source the it will show the charging screen and then I can turn it on again.
Its been a few times now, not sure its a hardware or software problem though. It shouldnt shut down when it still has 10% in it right?
Attached is the screenshot of the Battery Usage that shows the battery level shots down to 0% immediately from 10%.
Nexus 7 2013, Stock, Not Rooted
Are you using a battery monitoring program (battery doctor, better battery stats, etc)? If so, look in their settings, to see if they are set to shut down @ 10%...
BSnapp said:
Are you using a battery monitoring program (battery doctor, better battery stats, etc)? If so, look in their settings, to see if they are set to shut down @ 10%...
Click to expand...
Click to collapse
Nah I don't trust these apps so I don't use them. Moreover I'm did not root it so even if I use them they shouldnt have the permission to shut it down
Simple fix
It is an issue I have suffered with a couple of times and it appears we are not alone. It seems that the battery calibration is out of whack. When you charge your nexus up does it stay at 100% for quite a while? I
tried factory data resets amongst other things and nothing worked. I stumbled across a thread with a really simple fix. Turn your tablet off for 2 hours. Then turn it on again. Mine miraculously lost 26% of battery in that time (from 100% where it had been for 8 hours down to 74%). Then it started to use the battery at a normal rate. Working fine now.

Last night my M7 turned off to "rest"

I have no idea why some person thought it was a good idea to program a feature to turn your device off randomly. My one year old woke me up this morning early, I went to check my phone to see what time it was but the screen wouldn't turn on.
I left it on my nightstand with well over 50% battery when I went to sleep, no apps running like usual. My device will lose 3-4% battery over night, so no big deal at ~50% battery overnight.
Continuing with the issue, I booted the phone up to see if the battery had drained or something but it was still at 50%. After it fully booted a message popped up stating something to the fact of:
"Wondering why your phone turned off? It was turned off to rest. Your phone needs to rest to continue operating at optimum levels. Using high draining applications like navigation and video streaming can hinder system performance"
Or some kind of BS like that. I wish at 3:30am I had the forethought to screenshot the message...
Has anyone else had this happen? The thing is, I barely used my phone all day. Literally a few minutes of talking, few texts, took a few pictures and browsed a few articles using chrome.
I rely on my phone for my alarm so if this randomly happens that could be bad if my daughter sleeps in!
BTW, I'm running @santod040 stock rooted 5.0.2 full version.
Mine has done the same a few times since the OTA. I'm 100% stock
Nice when you rely on your phone for an alarm, right?
Have same problem. Has happened about 3 times since lollipop update. Fully stock. I tried cache wipe but that hasn't fixed it.
I am 100% stock as well, unrooted and S-ON. This has happened about once per week. Phone shuts down by itself and displays a message upon restart (see attached).
I've asked HTC support and they've had me try safe mode and wiping cache partition, though it sounds like it's a more widespread problem than something caused by a third-party app.

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