[help] [very high temp] - Android Q&A, Help & Troubleshooting

Hello everyone, this thread seems very appropriate for my problem.
So last night I woke up at 6 am and removed my device from the power source and took it in my hand only to see that it was burning-hot.
I usually play nfs no limits and it gets warm but this was very different, it must've been 80*+ because I couldn't even touch it because of the high temperature.
The device is Oneplus' X.
It's rooted and the bootloader is unlocked. I'm on cm12.1 with xposed and many battery saving modules are enabled such as power nap and greenify.
What troubles me is the fact that it should've switched off by itself but it didn't, I had to do it switch it off manually even though critically high temperature was reached.
That's very dangerous because if the cpu burns, fire will erupt and the bed will catch it and then who knows what'll happen.
So I was wondering if there's any trick or any app which automatically switches off the device after it reaches a pre defined temperature?
I've already enabled one of the temperature throttle in kernel adiutor (lol).
Any help would be greatly appreciated.

Related

[Q] Anyone else overheated their phones?

Hello,
I've had an interesting experience with my x10 mini pro today. After unlocking (from keypad lock) the phone it suddenly vibrated frantically and the led blinked angry red (or is it orange?) alarmingly. When I checked that status bar it says something about the temperature is above 50% and I need to do something. I quickly lowered the setCPU to around 245700 min and 300000 max but it still vibrated alarmingly. I managed to remove the alarm by killing apps through advance task killer.
My default cpu speed is 300000 min and 600000 max on demand and 245k min and 32-k max when screen is off. I don't know why it suddenly heated like that (atleast the phone says it is. I touched the battery and it was as cool as normal). Is there any danger of frying my phone's chips with this value? I dunno if I'm an overclock junkie but I think my value is pretty much normal. I have heard of someone's WiMo (I think that's the host of Linux Action Show! I'm not sure) that his overclocked phone gets so hot but still works, although for just few hours before the battery gets drained. Have anyone seen a phone get fried because of overclocking firsthand?
BTW, I leave my phone USB-connected to my PC almost 8 hours everyday. Is this dangerous? I notice it stops charging when it gets full (the battery with lightning icon is gone) so I assume it's no problem. I hope I'm not wrong.
I hope someone can provide me (or if somebody else experienced it) with answers.
Try wiping baterry stats in recovery, if that dosent help try restoring with seus.
if you still have the same issue I think your battey is dead

Lets try to narrow down the Overheat issue.

Edit:
From what I have gathered from those that have provided info.
Around 120*F is normal for heavy use, around 105-110* for medium use, 100-105* for light use. This is with cell data enabled, wifi lowers temps 5-10*, also temps are for extended use scenarios. (over 10-15 min)
Heavy use= 3D game or graphically intensive 2D game, streaming videos especially HD
Medium use= basic games web surfing sites with lots of images or some flash content
Light use= sending SMS, basic fooling with settings or other basic functions, streaming music with the screen off
I think we need to get a bit more scientific about testing this overheating issue out. I need help from a large group of people. I need those who think they have overheat issues and those who do not for the info to be useful.
First off... I believe these temps are just the battery, not the CPU. I think the CPU is running relatively cool as the rest of the phone does not heat up, or it seems what heat is felt is coming from the battery only.
This would explain why people claim that the extended battery does not have this issue. As batteries with higher mAh ratings are able to handle the higher power demands with less heat.
We need to do comparison tests using the same apps across tests and the same use times as well. Also no over or under-clocking and using the same CPU governor. (and between everyone participating where possible)
I have Minecraft and Sleepy Jack, they both produce similar temps after 15 minutes of play time. (around 117-120*F) I do not know if it gets any hotter with longer use because I rarely play longer than that at a time. I am at about the same temp after only 10 minutes so maybe that is the highest it gets.
I know for certain that enabling WiFi has a big impact on the temps. My fiance's phone would only get about 95*F, (according to the SetCPU widget) but when LTE is enabled it would get to 115*F. Mine hits 105* on WiFi.
I want to do at least two tests.
Lets use the following steps to test:
-For all testing the test time will be 15 minutes of play time.
-Lets all use Minecraft since there is a free version and I know the app causes the phone to work hard.
-No over or under-clocking
-On Demand governor
Test 1) Airplane mode enabled
Test 2) 3G enabled (not everyone lives in a LTE area, if you do, data from LTE enabled would be useful as well)
Now some optional tests. I did some rudimentary testing and there seemed to be an impact on temps.
Optional 3) Using interactive governor or Lag free governor
Optional 4) Use a different kernel... If you are on stock switch to ziggy's and vice versa. (this may be the most promising test as since switching to ziggy's I have had a few lockups where the old Android logo pops up on the screen and I need to do a battery pull to fix it. This happens to the fiance's device as well)
If you do these tests, please post the results, and what ROM and kernel you are using. I will keep track of the results and update as appropriate.
Lets see if we can find some consistent data and narrow this heat issue down.
Edit:
Running Ziggy's kernel I hit 108*F kept playing and shortly after the phone did the odd crash I mentioned.
Nice, had the same idea to do one of these over the weekend - you just beat me to it
I've done alot of research/ testing heat wise, and the pseudo-scientific conclusion that i've come to is that in a room temperature environment something like 75-85F idle & 110-115F netflix is normal for this gen of phones (Rezound, Galaxy Nexus, Galaxy S II, etc) - Give or take another 5F if you're using 4G. Seems like some devices are luckier than others & stay slightly cooler, but i'd gauge that they aren't the typical use case. IMO, (along side battery) data is a huge reason we've seen some of the face melting temperatures people have been reporting.
One thing I think would really help this thread is to set an easy to follow format for posting results. For example, here's a few tests I've done:
### Phone Info ###
ROM - Stock
Kernal - Stock
CPU Speed - Default (1.5)
Battery Type - Standard
Case - Generic TPU
## Test 1 ##
Charging - No
Data - 4G (4 bars)
App - Field Runners
Test Duration - 15 min
Start battery temp - 85 F
End battery temp - 112 F
Total Battery Drain - 20%
## Test 2 ##
Charging - No
Data - 4G (4 bars)
App - YouTube
Test Duration - 20 min
Start battery temp - 85 F
End battery temp - 104 F
Total Battery Drain - 16%
## Test 3 ##
Charging - No
Data - 4G (4 bars)
App - Onlive
Test Duration - 30 min
Start battery temp - 85 F
End battery temp - 125 F
Total Battery Drain - 40%
Hope this helps, i'd really like to see people participate - this information will be helpful for pretty much everyone in the Android community with a current gen phone.
Stock rom
Extended battery
Charging - yes
App - shine runner
Duration - 20 min
Start temp - 96F
End temp - 115F
3g, 3bars
This extended battery will get just as hot as the stock, just takes a little longer.
Edit-not quite as hot as the stock, but pretty toasty.
if it's the battery, then isn't the only parameter we need to test is current draw from the battery? no matter what radios/apps are enabled/disabled. It's bottom line is, the more we're drawing off the battery the hotter it's getting? I'd have to bring a pro in here on how Li-ion works in this form factor and why it gets hot, or what corners the battery manufacturer cut to make it possible!
The only time my battery gets hot is when I am in a weak signal area and the phone is searching for the 3G-4G signal. During daily use in a good signal area it never heats up.
My phone (and wife's also) heats up most notably during charging, especially when the battery is around 99% and going 100%. Usually the temp goes to ~ 45C (115F). In some rare cases, it was too hot to touch (dunno the exact temp). But some other times it would stay cool at all time.
Wife's first phone went into bootloop and her current phone is a new replacement. I kind of believe the overheating was the main cause of the bootloop problem.
thatsricci said:
if it's the battery, then isn't the only parameter we need to test is current draw from the battery? no matter what radios/apps are enabled/disabled. It's bottom line is, the more we're drawing off the battery the hotter it's getting? I'd have to bring a pro in here on how Li-ion works in this form factor and why it gets hot, or what corners the battery manufacturer cut to make it possible!
Click to expand...
Click to collapse
It's more than just the battery. Also: feel free to post a test - the more data we get from everyone, the better.
One important variable missing: ambient temp.
I was just playing words with friends for ten minutes:
Ambient temp: 67, Screen brightness: 50%,
4g: ON
wifi: OFF
my temp went to 105F, it's NEVER gone to 105F when playing before... and I play it every evening. It was hooked to the USB charger at the time, and when I felt it getting so hot, I looked at battery monitor and my net charge was negative, so it was using more than it was charging off the usb...
maybe something in some of those apps triggers something that causes the temp to rise? a loop? something?
thatsricci said:
I was just playing words with friends for ten minutes:
Ambient temp: 67, Screen brightness: 50%,
4g: ON
wifi: OFF
my temp went to 105F, it's NEVER gone to 105F when playing before... and I play it every evening. It was hooked to the USB charger at the time, and when I felt it getting so hot, I looked at battery monitor and my net charge was negative, so it was using more than it was charging off the usb...
maybe something in some of those apps triggers something that causes the temp to rise? a loop? something?
Click to expand...
Click to collapse
I noticed any time I charge with USB and use my phone it gets hot
Sent from my HTC Rezound
dustintheweb;21090574
One thing I think would really help this thread is to set an easy to follow format for posting results. For example said:
Good layout... and I think you are right about 115-120 degrees is normal for heavy use with apps that really stress the CPU or radio.
thatsricci said:
if it's the battery, then isn't the only parameter we need to test is current draw from the battery? no matter what radios/apps are enabled/disabled. It's bottom line is, the more we're drawing off the battery the hotter it's getting? I'd have to bring a pro in here on how Li-ion works in this form factor and why it gets hot, or what corners the battery manufacturer cut to make it possible!
Click to expand...
Click to collapse
A pro huh... good thing I'm here.
Ok I'm not a "pro" as it were, but i know a thing or too.
Its not going to be simply the battery, but I think it is a big culprit, and most of these devices only provide battery temps, not CPU or internal temps, this limits our overall knowledge of what is going on internally. The battery getting hot causes the device to heat up as well so a bad battery that overheats can cause the device to overheat.
All batteries will convert some energy draw into heat. This is caused by the internal resistance of the battery. Li Ion batteries have fairly low internal resistance compared to other types, but battery design an affect power output handling. Pulling more power than the battery can handle or near its limit and you get more heat than normal. The heat to output ratio stops being proportional and becomes exponential. So that means the real kicker is the actual amp draw on the battery. How much power the battery can handle is related to both the capacity of the battery and the manufacturing process/ design of the battery construction. I bet the new devices are straining the battery more than the current design can handle. There are better battery manufacture processes for better power handling, but that increases the cost of the battery.
(BTW battery is a misnomer for these, they are cells, specifically one 3.7/8V Li Ion cell. The difference is that batteries are made up of 2 or more cells. This goes for AAA, AA, C and D cells as well. Car batteries for example are made of six 2V cells, 6V lantern batteries are made of four 1.5V cells and 9V batteries are six 1.5V cells)
This is one reason I want to do a test with airplane mode on. This helps lower the power draw and allows us to get a better overall device temp, this helps us know if there is an issue with the CPU getting excessively hot vs just the battery being stressed to hard.
Kane5581 said:
One important variable missing: ambient temp.
Click to expand...
Click to collapse
I assumed most testing would be done at room temps of 68-72 degrees. If anyone tests in temps that are much higher or lower, then that would throw off the measurements.
I switched back to stock kernel, going to check for lockups and issues like I had before.
Click to expand...
Click to collapse
nev310 said:
I noticed any time I charge with USB and use my phone it gets hot
Sent from my HTC Rezound
Click to expand...
Click to collapse
Charging always causes heat. You are forcing power into a small space.
Charging via USB should only get the battery a little warm to the touch. 95* or so at most.
Charging with AC should get it a few degrees higher. I would think over 100* is odd.
as you reach 100% is when the heat should spike to the max temps I mentioned, before that it should just be warmish.
I will check mine to see how it behaves, but all my R/C batteries behave that way.
Replacing the kernel with stock lowered my temps quite a bit. I was around 110-115 degrees after 30 minutes or so. This was with LTE enabled.
Nobody else have anything?
noticed most of my heating issues when 4g was on (even when idling on 4g). Leaving in wifi and 3g keep the stock battery cool...on the extended I never really notice the heat, even on 4g.
I realize that you're trying to keep things as similar as possible, but I had an issue today listening to the broncos game in the NFL app while charging. It got so hot it boot looped. After getting it back up and running I started monitoring battery temps and even with the screen off and just listening to the game, it would get extremely hot. Btw, I have 4G 4 bars. A couple of times I ran to the freezer and put the phone in it for a couple minutes to cool it down as the temps got above 117°F.
From here, I thought it might be the CPU, so I set the maximum setting to 384 in antutu and then let the phone sit there with the screen off just as before listening to the game and still charging. Same thing, phone got extremely hot, 115°F. Although, what I find strange, is I can watch Netflix while charging and even tho it gets warm, it never gets above 115°F and never goes into the boot loop issue. Same exact location, charger, ambient temps, signal, the works. So I'm wondering if an app is just poorly written and causes some sort of excessive use of the radio.
On another note, I had a rezound battery in my thunderbolt and never had any issues what so ever with heat.
Sent from my ADR6425LVW using Tapatalk
What temperatures are you people expecting to see just out of curiousity? I mean if we run 3d intensive apps, videos, extreme web browsing we're going to see high temps since we are stressing the devices. We do have to remember these are compact devices and they are limited to what type of heatsinks/cooling they can add. From the multiple posts form this thread and others like it, we can see the majority of our devices run at same temps while under load. If it hasn't already been done maybe we should contact HTC and see what they say? Just a thought.
zetsumeikuro said:
What temperatures are you people expecting to see just out of curiousity? I mean if we run 3d intensive apps, videos, extreme web browsing we're going to see high temps since we are stressing the devices. We do have to remember these are compact devices and they are limited to what type of heatsinks/cooling they can add. From the multiple posts form this thread and others like it, we can see the majority of our devices run at same temps while under load. If it hasn't already been done maybe we should contact HTC and see what they say? Just a thought.
Click to expand...
Click to collapse
I am trying to find the norms and what is too hot.
I am thinking 115 is normal for heavy use. But we need to be sure, if someone says they only hit 100 under similar conditions as someone that hits 120. it may be that 120 is a problem temp and that 100 is normal. It may also be that the person only hitting 100 is just lucky.
tbot said:
I realize that you're trying to keep things as similar as possible, but I had an issue today listening to the broncos game in the NFL app while charging. It got so hot it boot looped. After getting it back up and running I started monitoring battery temps and even with the screen off and just listening to the game, it would get extremely hot. Btw, I have 4G 4 bars. A couple of times I ran to the freezer and put the phone in it for a couple minutes to cool it down as the temps got above 117°F.
From here, I thought it might be the CPU, so I set the maximum setting to 384 in antutu and then let the phone sit there with the screen off just as before listening to the game and still charging. Same thing, phone got extremely hot, 115°F. Although, what I find strange, is I can watch Netflix while charging and even tho it gets warm, it never gets above 115°F and never goes into the boot loop issue. Same exact location, charger, ambient temps, signal, the works. So I'm wondering if an app is just poorly written and causes some sort of excessive use of the radio.
On another note, I had a rezound battery in my thunderbolt and never had any issues what so ever with heat.
Sent from my ADR6425LVW using Tapatalk
Click to expand...
Click to collapse
Go play an app that is heavy in 3D, lets see what temps you get. If you go much over 120 it may be an issue.
Running Gun Bros for about 20 minutes gets me up to about 105°F. Right now after the phone had been sitting for 5ish hours doing nothing its at 98°F.
Sent from my ADR6425LVW using Tapatalk
I think it is Ziggy's kernel I have never got 125f when tethering for 30min or playing GTA for 30 min. I am going to try another kernel.

Terrible battery life, tried everything I could think of

So first a little background on this phone: my girlfriend had been heavily using it for 2 years. Over time, the battery went bad. She would keep it always on charger when she's at home, so she can have a full battery when she goes to school. At one point, after over 1.5yr, the phone started behaving weird when connected to charger: it would be either discharging while on charger, or charging very slowly, like 5% in 2 hours, during which the phone is on standby, not being used.
I took the phone and flashed a CM11 nightly. Ever since then, the charging problem has been resolved. However, the phone has extremely poor battery life. I'm able to get maximum of 2 hours screen-on time.
- I have the Greenify app, and most of the apps are greenified, including keyboard even.
- I have data off at all times, and am using Tasker to turn it on only when certain apps are running. Turning the screen off or exiting the app disable data.
- Screen brightness is at 50%
- Maximum CPU frequency is lowered to 1000 MHz (min is at 200 MHz)
- CPU governor is ondemand
- I/O scheduler is CFQ
- The phone is running CM11 nightly from 16/02 with it's native kernel.
I have recently bought a battery which is claimed to be an original. I don't know if it is, is there a way to actually check it? The battery life has not improved in regard to the old battery, the one that came with the phone.
I have also tried Gustavo kernel, but for some odd reason the drain was like 1% every 2 minutes when on standby, so I restored the latest backup.
Maybe worth to mention is that I have a yellow-ish rectangle going over my screen. It's not really noticeable, only in apps with white background. The rectangle is located in the middle of the screen, goes from side to side, and takes ~1/3 of the screen vertically. I have no idea what is that, but the screen is okay. It's responsive and the colors are fine.
I have no idea with else I could do to improve my battery life. It's seriously awful.
I'm going to try and calibrate the battery using this app tonight, but I'm really not too optimistic.
Any tips?
Lucenzo7 said:
At one point, after over 1.5yr, the phone started behaving weird when connected to charger: it would be either discharging while on charger, or charging very slowly, like 5% in 2 hours, during which the phone is on standby, not being used.
Click to expand...
Click to collapse
These are common symptoms of a damaged usb port. It was the same with me, until i replaced the usb port. Now my S2 works, battery wise.
Lucenzo7 said:
So first a little background on this phone: my girlfriend had been heavily using it for 2 years. Over time, the battery went bad. She would keep it always on charger when she's at home, so she can have a full battery when she goes to school. At one point, after over 1.5yr, the phone started behaving weird when connected to charger: it would be either discharging while on charger, or charging very slowly, like 5% in 2 hours, during which the phone is on standby, not being used.
I took the phone and flashed a CM11 nightly. Ever since then, the charging problem has been resolved. However, the phone has extremely poor battery life. I'm able to get maximum of 2 hours screen-on time.
- I have the Greenify app, and most of the apps are greenified, including keyboard even.
- I have data off at all times, and am using Tasker to turn it on only when certain apps are running. Turning the screen off or exiting the app disable data.
- Screen brightness is at 50%
- Maximum CPU frequency is lowered to 1000 MHz (min is at 200 MHz)
- CPU governor is ondemand
- I/O scheduler is CFQ
- The phone is running CM11 nightly from 16/02 with it's native kernel.
I have recently bought a battery which is claimed to be an original. I don't know if it is, is there a way to actually check it? The battery life has not improved in regard to the old battery, the one that came with the phone.
I have also tried Gustavo kernel, but for some odd reason the drain was like 1% every 2 minutes when on standby, so I restored the latest backup.
Maybe worth to mention is that I have a yellow-ish rectangle going over my screen. It's not really noticeable, only in apps with white background. The rectangle is located in the middle of the screen, goes from side to side, and takes ~1/3 of the screen vertically. I have no idea what is that, but the screen is okay. It's responsive and the colors are fine.
I have no idea with else I could do to improve my battery life. It's seriously awful.
I'm going to try and calibrate the battery using this app tonight, but I'm really not too optimistic.
Any tips?
Click to expand...
Click to collapse
You should try different Roms like slimsaber 4.4.4 by fusionjack. I know i've said this particular line many times before (to others) but it has now become one of the first things I say. AFAIK, the last few cm11 night lies weren't particularly stable or battery friendly. You should try a custom ROM with a different custom kernel (i have noted that you've flashed gustavo kernel) like apolo kernel 7.2 beta 3 by pedestre or dorimanx 10.44 v008 by cybernetus.

[Q] How to max the battery life ?

Well i just got the LG G3 and am using it on GSM.
prior to using i rooted ,TWRP and loaded jasmine 4.0 , also put in skydragon kernel 2.9.4 s 3.0 had crazy boot times.
I am trying to get the max out of the phone what ive noticed is that the phone just doesn't wanna deep sleep.
I have greenify , xposed (amplify) and noticed the issue of battery being drained when idle , i went to sleep and saw it was at 50% , woke up to 10% battery, my older phones never dropped more than 2% overnight,
To investigate loaded BBS and wakelock detector , nothing that pops up out of the ordinary
So my question is what do you guys do to max the battery outta this , what can i do ? i dont really see any apps causing it to wakeup . suggestions or any would be appreciated
any other stock rom also if you could suggest for battery life ? ive heard good about cloudy 1.2 as well.
I have really gotten great battery life out of sky dragon along with the 3.0.2 SD kernel (kernel is in the orig Dev section). Along with amplify ad greenify.
Sent from my LG-VS985 using XDA Free mobile app
cletusarrarr said:
Well i just got the LG G3 and am using it on GSM.
prior to using i rooted ,TWRP and loaded jasmine 4.0 , also put in skydragon kernel 2.9.4 s 3.0 had crazy boot times.
I am trying to get the max out of the phone what ive noticed is that the phone just doesn't wanna deep sleep.
I have greenify , xposed (amplify) and noticed the issue of battery being drained when idle , i went to sleep and saw it was at 50% , woke up to 10% battery, my older phones never dropped more than 2% overnight,
To investigate loaded BBS and wakelock detector , nothing that pops up out of the ordinary
So my question is what do you guys do to max the battery outta this , what can i do ? i dont really see any apps causing it to wakeup . suggestions or any would be appreciated
any other stock rom also if you could suggest for battery life ? ive heard good about cloudy 1.2 as well.
Click to expand...
Click to collapse
Are you connected to WiFi when your phone won't deep sleep?
I work from home, so my phone spends 90% of its time on WiFi - I was getting terrible battery drain and only 50% deep sleep on a good day. One day, I left the house and noticed great battery life and plenty of deep sleep on a 4G connection (which is the opposite of what I expected).
After trying nearly everything, I discovered the fix was as a simple as turning on the "Battery Saving for WiFi" setting under Settings -> Wi-Fi -> Advanced Wi-Fi". I've been getting great battery life and deep sleep times when I'm at home now.
Give it a shot and see if it solves your issue.
Also, ever since daylight savings time went into effect, I noticed both my phone and my wife's phone keep randomly changing time zone for no reason. Looks like the phone is struggling to automatically detect the time zone from the carrier and causing battery drain as a result. I disabled the setting to automatically detect the time zone (and manually set it for PDT) and the battery drain stopped on both of our devices. Could be unique to my area but may be something to try as well.
Artimis said:
Are you connected to WiFi when your phone won't deep sleep?
I work from home, so my phone spends 90% of its time on WiFi - I was getting terrible battery drain and only 50% deep sleep on a good day. One day, I left the house and noticed great battery life and plenty of deep sleep on a 4G connection (which is the opposite of what I expected).
After trying nearly everything, I discovered the fix was as a simple as turning on the "Battery Saving for WiFi" setting under Settings -> Wi-Fi -> Advanced Wi-Fi". I've been getting great battery life and deep sleep times when I'm at home now.
Give it a shot and see if it solves your issue.
Also, ever since daylight savings time went into effect, I noticed both my phone and my wife's phone keep randomly changing time zone for no reason. Looks like the phone is struggling to automatically detect the time zone from the carrier and causing battery drain as a result. I disabled the setting to automatically detect the time zone (and manually set it for PDT) and the battery drain stopped on both of our devices. Could be unique to my area but may be something to try as well.
Click to expand...
Click to collapse
i was connected to wifi , however i doubt that could be the issues , ive had other phones behave while on wifi as well,ive identified a few services that could be the issue. did some tinkering today, lets c how it goes tonight. what roms r u guys on ?
cletusarrarr said:
i was connected to wifi , however i doubt that could be the issues , ive had other phones behave while on wifi as well,ive identified a few services that could be the issue. did some tinkering today, lets c how it goes tonight. what roms r u guys on ?
Click to expand...
Click to collapse
I thought the same as well which is why I discounted this as being a cause for 4 months....I have 15 other android devices and none have exhibited this behavior so I was surprised that such a trivial setting could have had this impact.
To answer your question, I am currently running:
- BeanTowns stock 11B ROM
- SkyDragon 2.9.7 kernel
- Xposed installed with Disabled Services running
- Selected stock apps/services disabled
I don't use greenify/amplify (don't see the need as my average daily drop is anywhere from 1.6% - 2.4%/hour with moderate use).

This is a normal 3G battery time with CM11 by ggow?

I've got 1 day and 10 hours standby battery life from 100% to 0%.
There was no use of the tablet and only standby time.
and I turned on Mobile data and Bluetooth and turned off WiFi which means full time 3G(HSPA) standby with bluetooth.
I use HDX 8.9 3rd gen LTE(apollo) with CM11 by ggow on the Sidestrap 4.0.1.
there was almost no 'awake' and there was never 'screen on'.
I wonder this battery time is normal or not.
Likesoft said:
I've got 1 day and 10 hours standby battery life from 100% to 0%.
There was no use of the tablet and only standby time.
and I turned on Mobile data and Bluetooth and turned off WiFi which means full time 3G(HSPA) standby with bluetooth.
I use HDX 8.9 3rd gen LTE(apollo) with CM11 by ggow on the Sidestrap 4.0.1.
there was almost no 'awake' and there was never 'screen on'.
I wonder this battery time is normal or not.
Click to expand...
Click to collapse
While I have no experience with HDX mobile data (my devices are WiFi only) I will comment my phone (Moto X variant) with a battery 35% the capacity of an HDX 8.9" can hold out for 48+ hours under the same scenario. No radios, only mobile data, no screen activity (left in drawer). Obviously a lot depends on connectivity type (2G/3G/LTE), distance from tower and the ability for the device to fall into and remain in 'deep sleep'. Google services are notorious for waking idle devices; you have to pretty aggressive to quite the framework while not impacting functionality.
Based on the above caveats and my experience with several HD and HDX 7 devices runing FireOS, CM11 and Nexus (can easily last a week or more in standby) I'd say the mobile radio is certainly taking a toll on battery life. There are several Xposed modules that attempt to manage radio configuration on-the-fly to moderate power draw. Might want to try one of those.
Davey126 said:
While I have no experience with HDX mobile data (my devices are WiFi only) I will comment my phone (Moto X variant) with a battery 35% the capacity of an HDX 8.9" can hold out for 48+ hours under the same scenario. No radios, only mobile data, no screen activity (left in drawer). Obviously a lot depends on connectivity type (2G/3G/LTE), distance from tower and the ability for the device to fall into and remain in 'deep sleep'. Google services are notorious for waking idle devices; you have to pretty aggressive to quite the framework while not impacting functionality.
Based on the above caveats and my experience with several HD and HDX 7 devices runing FireOS, CM11 and Nexus (can easily last a week or more in standby) I'd say the mobile radio is certainly taking a toll on battery life. There are several Xposed modules that attempt to manage radio configuration on-the-fly to moderate power draw. Might want to try one of those.
Click to expand...
Click to collapse
I think it's not normal.
Although the mobile radio takes some more power than WiFi, It doens't make sense that a 6000mAh battery device lasts only 34 hours standby time.
I think I should find out what is the problem.
Likesoft said:
I think it's not normal.
Although the mobile radio takes some more power than WiFi, It doens't make sense that a 6000mAh battery device lasts only 34 hours standby time.
I think I should find out what is the problem.
Click to expand...
Click to collapse
Gsam and wakelock detector (or similar tools) are your friend for detection, Greenify and Amplify (if used judiciously) for remediation. Of course there are more powerful tools for advanced tweaking ...
Davey126 said:
Gsam and wakelock detector (or similar tools) are your friend for detection, Greenify and Amplify (if used judiciously) for remediation. Of course there are more powerful tools for advanced tweaking ...
Click to expand...
Click to collapse
Normally, 'wake lock' makes battery drain but there's no awake on my battery log from android setting menu.
I can see the cpu gorverner is 'performance' which sets cpu clock highest and it can't be changed.
Maybe that's the reason of battery drain I think.
but one thing I feel weird is, if cpu clock is set highest and it can't be changed, the device should be warm or hot. but I can't feel any heat from my HDX 8.9. but the battery still drains.
Likesoft said:
Normally, 'wake lock' makes battery drain but there's no awake on my battery log from android setting menu.
I can see the cpu gorverner is 'performance' which sets cpu clock highest and it can't be changed.
Maybe that's the reason of battery drain I think.
but one thing I feel weird is, if cpu clock is set highest and it can't be changed, the device should be warm or hot. but I can't feel any heat from my HDX 8.9. but the battery still drains.
Click to expand...
Click to collapse
The native battery log is not comprehensive, particularly in the area of awake time (based on what?). Use a more robust tool (I suggested a couple). Also take a peek a Process Stats under developer options (KitKat and above). This can sometimes expose CPU/RAM hogs (and indirectly wakelocks).
Try CPU-Z to monitor individual processor speeds (on the SOC tab). Many tools report only the highest level. There are various apps that attempt to set cpu min/max. I would stay away from those as most roms and the device itself do a fine job responding to dynamic loads.
If 1-2 CPUs are elevated and the rest idle there won't be a lot of excess heat.
Davey126 said:
The native battery log is not comprehensive, particularly in the area of awake time (based on what?). Use a more robust tool (I suggested a couple). Also take a peek a Process Stats under developer options (KitKat and above). This can sometimes expose CPU/RAM hogs (and indirectly wakelocks).
Try CPU-Z to monitor individual processor speeds (on the SOC tab). Many tools report only the highest level. There are various apps that attempt to set cpu min/max. I would stay away from those as most roms and the device itself do a fine job responding to dynamic loads.
If 1-2 CPUs are elevated and the rest idle there won't be a lot of excess heat.
Click to expand...
Click to collapse
I've checked the core status with CPU-Z, the 1-2 cores are only elevated to highest clock and the rest cores(3-4) are stopped, as you mentioned. Maybe that's why there was no excess heat.
Anyway, I've installed Gsam battery and WLD. but the WLD gives me only meaning less results(there was no excessive wake lock or so. Kernal wake lock time is almost same as the time of my using the tablet.).
But Gsam gives me that the problem is "Radio". GSam says 66% of battery drain is caused by Radio during last 24 hours, even though I used tablet 3 hours with screen on.
I think the battery is leaking from 3G radio.
The next test will be the Airplain mode with WiFi and Bluetooth on.

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