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[Q] Is this normal?

Is it normal to lose 28% after 15 minutes of online gaming thru stable 3G network connection on the Xperia Z and getting an high level of heating also?
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Destroyedbeauty said:
Is it normal to lose 28% after 15 minutes of online gaming thru stable 3G network connection on the Xperia Z and getting an high level of heating also?
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yes...this phone cant take heat very well, the processor doesnt help either.

G1_enthusiast said:
yes...this phone cant take heat very well, the processor doesnt help either.
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Underclocking does fix this to some extent?
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Destroyedbeauty said:
Underclocking does fix this to some extent?
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it does, just prolong it from heating...once the phone get hot enough, it will start to thermal throttle which downclock your cpu anyway...i tink the preset is 902mhz and 712mhz(?) not a good phone if you wanna play game long...

G1_enthusiast said:
it does, just prolong it from heating...once the phone get hot enough, it will start to thermal throttle which downclock your cpu anyway...i tink the preset is 902mhz and 712mhz(?) not a good phone if you wanna play game long...
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That sucks.. Seems like my Samsung Galaxy S3 will be better for gaming. No heat issues there just need to dust it off a little..
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Destroyedbeauty said:
That sucks.. Seems like my Samsung Galaxy S3 will be better for gaming. No heat issues there just need to dust it off a little..
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I never use the international version so i dont know but the S3 USA version is freaking awesome...many reviewers crown it as the official Iphone killer...

G1_enthusiast said:
I never use the international version so i dont know but the S3 USA version is freaking awesome...many reviewers crown it as the official Iphone killer...
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Click to collapse
I am using the international version of the S3 and gaming on that machine is like butter smooth!
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not underclocking......undervolting will help for sure....i use it for a month so far...25-30 percent longer battery life , way cooller phone.

glukasil said:
not underclocking......undervolting will help for sure....i use it for a month so far...25-30 percent longer battery life , way cooller phone.
Click to expand...
Click to collapse
Stock kernel on leaked .407 (Jelly Bean 4.2.2) doesn't support undervolting.. :thumbdown: so I am pretty limited atm. And moving back to 4.1.2 isn't ideal because of wakelock issues on latest .253 and .307 Firmwares..
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under clocking is essentially undervolting, but undervolting too much lag the phone.

G1_enthusiast said:
under clocking is essentially undervolting, but undervolting too much lag the phone.
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Click to collapse
Nope, underclocking is lowering lowest and highest frequencies that the CPU can provide and use for certain tasks.
Undervolting is lowering the voltage frequencies of the CPU cores at their CPU frequencies so they drain less power from battery. Lower this too low though will cause lag and reboots because less power to the cpu..
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Destroyedbeauty said:
Nope, underclocking is lowering lowest and highest frequencies that the CPU can provide and use for certain tasks.
Undervolting is lowering the voltage frequencies of the CPU cores at their CPU frequencies so they drain less power from battery. Lower this too low though will cause lag and reboots because less power to the cpu..
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underclocking using a lower freq, since the freq have different voltage, the lower the freq the less voltage, since you are using a lower freq you are using a lower voltage.

G1_enthusiast said:
underclocking using a lower freq, since the freq have different voltage, the lower the freq the less voltage, since you are using a lower freq you are using a lower voltage.
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Click to collapse
Not necessarily. It is quite often that the voltage between two neighbouring frequencies doesn't differ.
Besides the voltage differences between highest frequencies are small so to effectively prolong your battery life by underclocking you'd have to limit the CPU a lot. So usually undervolting is the way.

xswistaqx said:
Not necessarily. It is quite often that the voltage between two neighbouring frequencies doesn't differ.
Besides the voltage differences between highest frequencies are small so to effectively prolong your battery life by underclocking you'd have to limit the CPU a lot. So usually undervolting is the way.
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Undervolting or underclocking - which one of them is best?
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I'd go with undervolting. You get the same performance and longer battery life but it might cause reboots if you undervolt too much.
With underclocking there's no rebooting issue but it's simply limiting your phones performance.

Extremely bad battery life

I've been experiencing very bad battery life lately. Currently using PAC, I could lose 10% of battery in under 20 minutes of normal web browsing with the brightness set all the way to low. I'm underclocked and undervolted, battery health is good. I don't really know what's causing my media server thing to use so much battery but it's definitely chewing up more juice than normal. How am I supposed to fix this?

Stop media scanning.
On the Store there is an app called Rescan Media Root.
Media server drain ia usually caused by the sd scanning proccess, sometimes a bad file can cause it to go nuts and keeps the proccess alive, thus killing your battery.
Give it a go.

DrKrFfXx said:
Stop media scanning.
On the Store there is an app called Rescan Media Root.
Media server drain ia usually caused by the sd scanning proccess, sometimes a bad file can cause it to go nuts and keeps the proccess alive, thus killing your battery.
Give it a go.
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Click to collapse
I will also try this, my phone is only two days old and the battery life on this device is absolutely horrible compared to my Samsung Galaxy Note 2, I will check back with you folks and let you know the results

It is horrible compared to a Note 2, even if you didn't have that bug.
Plus, CM, AOSP, and PAC, all of them don't have that great of a battery life compared to stock.
Say you can get a solid 5+ hours out of a stock rom with few tweaks, whereas on those buolds mentioned you could get 4h, with not so great idling times.

DrKrFfXx said:
It is horrible compared to a Note 2, even if you didn't have that bug.
Plus, CM, AOSP, and PAC, all of them don't have that great of a battery life compared to stock.
Say you can get a solid 5+ hours out of a stock rom with few tweaks, whereas on those buolds mentioned you could get 4h, with not so great idling times.
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Click to collapse
mines totally stock too

DrKrFfXx said:
It is horrible compared to a Note 2, even if you didn't have that bug.
Plus, CM, AOSP, and PAC, all of them don't have that great of a battery life compared to stock.
Say you can get a solid 5+ hours out of a stock rom with few tweaks, whereas on those buolds mentioned you could get 4h, with not so great idling times.
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Click to collapse
Obviously horrible compared to a note 2 since note 2 has a bigger battery and lower resolution screen?
Sent from my C6603

DrKrFfXx said:
Stop media scanning.
On the Store there is an app called Rescan Media Root.
Media server drain ia usually caused by the sd scanning proccess, sometimes a bad file can cause it to go nuts and keeps the proccess alive, thus killing your battery.
Give it a go.
Click to expand...
Click to collapse
and if its not rooted?

I'm trying it our now, report back in a day or so. This phone is bound to have worse battery life than the Note 2, it has 2 more cores, 2x more pixels, LCD screen, smaller battery, if you want great battery life go back to the Note or get a battery case. I didn't know that stock gives me more battery, maybe I should go back :/

pimpsuprazx said:
and if its not rooted?
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Click to collapse
how can you have Custom ROM, but not want root?
sebastianlow said:
I'm trying it our now, report back in a day or so. This phone is bound to have worse battery life than the Note 2, it has 2 more cores, 2x more pixels, LCD screen, smaller battery, if you want great battery life go back to the Note or get a battery case. I didn't know that stock gives me more battery, maybe I should go back :/
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Click to collapse
Sony stock is very good rom to me. I will go to custom rom only if sony discontinued the updates, or sony makes the rom while drunk ( too much bugs, unstable... )
And, don't undervolt too much, -100mV is ok,
there's some test out there (not APQ8064), when undervolt too much, the processor will messed up the calculation, and re-calculate the process, wasting more battery and time. [this is applied to my old xperia arc]
If on Intel X86, I never get any issues/drawbacks from undervolting.
Sorry if I'm wrong, and sorry for my bad english.

sebastianlow said:
I've been experiencing very bad battery life lately. Currently using PAC, I could lose 10% of battery in under 20 minutes of normal web browsing with the brightness set all the way to low. I'm underclocked and undervolted, battery health is good. I don't really know what's causing my media server thing to use so much battery but it's definitely chewing up more juice than normal. How am I supposed to fix this?
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Pretty common on cm based Roms.
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~iPod~nano~ said:
how can you have Custom ROM, but not want root?
Sony stock is very good rom to me. I will go to custom rom only if sony discontinued the updates, or sony makes the rom while drunk ( too much bugs, unstable... )
And, don't undervolt too much, -100mV is ok,
there's some test out there (not APQ8064), when undervolt too much, the processor will messed up the calculation, and re-calculate the process, wasting more battery and time. [this is applied to my old xperia arc]
If on Intel X86, I never get any issues/drawbacks from undervolting.
Sorry if I'm wrong, and sorry for my bad english.
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Click to collapse
i never said i had a custom rom, i went to install it, and it said i had to be rooted, and I'm not rooting my phone yet, thats why I asked if something similar was available for non rooted users.

Of course I'm not saying it's gonna get magically better but you should really give it more of a chance than two days a couple full charge cycles will help some,plus being new your prob setting up alot etc
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Jonathan2677 said:
Of course I'm not saying it's gonna get magically better but you should really give it more of a chance than two days a couple full charge cycles will help some,plus being new your prob setting up alot etc
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thats definitely true, I know these batteries aren't supposed to have "memory" but should I do the full charge and drain with them?
I guess I'm under the assumption of it being newer and better technology then my Galaxy Note 2 I was coming from, I was expecting it to be right off the bat better.
thanks

pimpsuprazx said:
thats definitely true, I know these batteries aren't supposed to have "memory" but should I do the full charge and drain with them?
I guess I'm under the assumption of it being newer and better technology then my Galaxy Note 2 I was coming from, I was expecting it to be right off the bat better.
thanks
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Diff threads I read say it's no good to let it drain down to low, I usually charge around 20,30 percent I do about once a month let drain completely
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Jonathan2677 said:
Diff threads I read say it's no good to let it drain down to low, I usually charge around 20,30 percent I do about once a month let drain completely
Sent from my C6603 using xda premium
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I'm gonna try that, thanks

Bad battery? So this type not worthed to buy?

Hey, the "rescan media server" app fixes the battery drain temporarily. How do I find out and delete the file that is causing my media scanner to keep running? I switched over to another ROM a few hours ago and media scanner is still taking a big chunk of my battery until I kill it. Do I need to reformat my card? Run anti virus?

Try this app. It is an android issue not an Sony issues. The mediaserver running all the time. This app will help. https://play.google.com/store/apps/details?id=com.addz.mediascannerroot
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~iPod~nano~ said:
how can you have Custom ROM, but not want root?
Sony stock is very good rom to me. I will go to custom rom only if sony discontinued the updates, or sony makes the rom while drunk ( too much bugs, unstable... )
And, don't undervolt too much, -100mV is ok,
there's some test out there (not APQ8064), when undervolt too much, the processor will messed up the calculation, and re-calculate the process, wasting more battery and time. [this is applied to my old xperia arc]
If on Intel X86, I never get any issues/drawbacks from undervolting.
Sorry if I'm wrong, and sorry for my bad english.
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Click to collapse
I'm undervolted with -300 and my battery is lovely without any problems..
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Destroyedbeauty said:
I'm undervolted with -300 and my battery is lovely without any problems..
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Crazy undervolt. I thought my -200 was about the max you could achieve.

Question regarding total amount of active CPU cores..

I did some checking in the .sh files, inside the /system/etc folder, and found inside the set_governor.sh that the Z1 is pre-configured to keeping all 4 CPU cores online at the same time. For performance reasons it seems..
Should I delete every line that is related to total amount of online / active cores so the kernel can decide and take care about that by itself or should I echo 0 the amount of cores that I want to be in sleep / idle mode?
I am tweaking my brand new Z1 for even more battery life, that's why I am asking this question!

Destroyedbeauty said:
I did some checking in the .sh files, inside the /system/etc folder, and found inside the set_governor.sh that the Z1 is pre-configured to keeping all 4 CPU cores online at the same time. For performance reasons it seems..
Should I delete every line that is related to total amount of online / active cores so the kernel can decide and take care about that by itself or should I echo 0 the amount of cores that I want to be in sleep / idle mode?
I am tweaking my brand new Z1 for even more battery life, that's why I am asking this question!
Click to expand...
Click to collapse
All four cores are not online at the same time all the time. At idle, only 1 core is active at min frequency 300 mhz, the other cores come online when there is demand for them. Disabling cores has never helped improve battery life in my experience, merely causing slow downs and resulting in the CPU taking longer to complete processing, using up precious power before it's able to return to min frequency.
(My limited knowledge)

tomascus said:
All four cores are not online at the same time all the time. At idle, only 1 core is active at min frequency 300 mhz, the other cores come online when there is demand for them. Disabling cores has never helped improve battery life in my experience, merely causing slow downs and resulting in the CPU taking longer to complete processing, using up precious power before it's able to return to min frequency.
(My limited knowledge)
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If this is the case - why does kernel modules like ECO-Mode exist that shuts down two cores and converts the phone into an DC one?
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Destroyedbeauty said:
If this is the case - why does kernel modules like ECO-Mode exist that shuts down two cores and converts the phone into an DC one?
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Eco mode? Never heard of it. Don't know anything that makes the Xperia Z1 go dualcore mode, might want to show me a link?
Ps. Tried underclocking with fauxclock or trickstermod?
Sent from my C6903 using Tapatalk

Why would anyone want to lower speed or nr of cores active on a beast like this? Go buy an older phone if u want a slower one lol. It uses the power it needs to complete the tasks it is asked to do unless u got some crap laying in the background draining your battery that way.

McT1980 said:
Why would anyone want to lower speed or nr of cores active on a beast like this? Go buy an older phone if u want a slower one lol. It uses the power it needs to complete the tasks it is asked to do unless u got some crap laying in the background draining your battery that way.
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This have nothing to do with get a slow device. This probably will help avoid battery drain and without a few test no body can said it will not work.

eclyptos said:
This have nothing to do with get a slow device. This probably will help avoid battery drain and without a few test no body can said it will not work.
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What battery drain are you referring to? When people talk about battery drain they usually mean when screen is of and they usually got some crap running in the background. I can get 2-3 days of moderate usage running dooms kernel and that's not bad.

McT1980 said:
What battery drain are you referring to? When people talk about battery drain they usually mean when screen is of and they usually got some crap running in the background. I can get 2-3 days of moderate usage running dooms kernel and that's not bad.
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Click to collapse
Any core need energy, trying to switch them off when not needed can only improve battery standby. This is not the solution for the battery, this is one of many. We know that the crap running in background it's another reason and the screen too. Here we considering only the CPU.

eclyptos said:
Any core need energy, trying to switch them off when not needed can only improve battery standby. This is not the solution for the battery, this is one of many. We know that the crap running in background it's another reason and the screen too. Here we considering only the CPU.
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Agreed, but it would surprise me if the phone runs at 4x300mhz when the screen is of. 1 core is enough and i've seen several posts saying that it runs with 1 when the screen is of. If it runs at 4 however,yeah you could save some juice by disabling cores.

Overclocking Kernels for the TF701t

Hi, does anyone know of any kernels available for the tf701 so we can overclock/underclock the processor better? I still am kind of new to this forum. I want to do this for overall battery life improvement and also performance improvements as a bonus. thanks for your help!!
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royredman said:
Hi, does anyone know of any kernels available for the tf701 so we can overclock/underclock the processor better? I still am kind of new to this forum. I want to do this for overall battery life improvement and also performance improvements as a bonus. thanks for your help!!
Sent from my TF300T using Tapatalk 2
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Click to collapse
There are none currently.
Not sure the device really needs it either. It's very fast as it and would only generate more heat and worse battery on an already hot device.
Tweaking the kernel and rom are much better options (CROMi-X )

sbdags said:
There are none currently.
Not sure the device really needs it either. It's very fast as it and would only generate more heat and worse battery on an already hot device.
Tweaking the kernel and rom are much better options (CROMi-X )
Click to expand...
Click to collapse
I essentially wanted to use SetCPU in order to dramatically underclock the processor during sleep and slightly underclock it while its screen is on (because who needs all this processing power really?). This could possibly stretch out my battery life by another day. Do you think that will be possible to do when I install a different ROM on the tablet? (like yours for example)

Ah ok - download trickster mod and set the min and max freq there. SetCPU is years old and won't work with our device

sbdags said:
Ah ok - download trickster mod and set the min and max freq there. SetCPU is years old and won't work with our device
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Click to collapse
with the trickster mod, would I be able to set profiles for it when I do things like turn off the screen? thanks for the suggestion!!

royredman said:
with the trickster mod, would I be able to set profiles for it when I do things like turn off the screen? thanks for the suggestion!!
Click to expand...
Click to collapse
Nope - it just sets the min and max.

I wonder why it gets hot though. I thought these are SoC's and aren't supposed to get hot. The tf101 didnt get hot at all. But if you overclocked it to 1.6 it started to get warm.

Does anyone know if this happens as regularly on cm11 or another aosp ROM? Also, what's a good max level to clock it at so I don't constantly worry about the heat issue?
Sent from my SCH-I545 using Tapatalk 2

royredman said:
Does anyone know if this happens as regularly on cm11 or another aosp ROM? Also, what's a good max level to clock it at so I don't constantly worry about the heat issue?
Sent from my SCH-I545 using Tapatalk 2
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Click to collapse
What exactly are you worried about? You can't clock it past 1.9GHz anyway which while it might get toasty it won't fry an egg or anything.

sbdags said:
What exactly are you worried about? You can't clock it past 1.9GHz anyway which while it might get toasty it won't fry an egg or anything.
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Click to collapse
I just want to make sure getting it this warm wouldn't damage the hardware in anyway.
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Battery overheating?

Hello guys,
Recently i had to send in my Z1 because I bricked it! Sony said various components were broken and replaced including the motherboard the phone works fine and better than before but i've noticed an increase in battery temperature! Before the repair my battery never went above 30°C but after the repair my battery is often over 40°C and I do not know what's wrong!
Is this normal or should I be worried?
after some browsing and writing this text: the cpu is 55°C and the battery is 44°C no overclocking is used and I am using the same rom as before the repair (crdroid)
Update: more browsing whilst charging cpu is 60°C and battery is 47°C charging was automatically stopped

What firmware version before the brick and what version after?

DorianX said:
What firmware version before the brick and what version after?
Click to expand...
Click to collapse
Don't know what it was before but my phone came back with 14.5.A.0.270

I'd suggest taking it to Sony service center

The heat depends on many factors such as the room tem (if is hot in the room the phone can't be cooler than the room temp) same story if you are using it outside. A few days ago it was about 40 degree celsius in my city and my z1 was hot even with little usage. Hope you get the idea. So if you use it in a hot room it is normal for the phone to heat.

I didn't read that you are using the same ROM as before sorry, so isn't a ROM problem but anyway I suggest try downgrade to stock KK if the problem persist send it to Sony service center

this is a screenshot of all temps after browsing facebook for 10 minutes...

noahvt said:
this is a screenshot of all temps after browsing facebook for 10 minutes...
Click to expand...
Click to collapse
Those readings are abnormal. Your battery will fail in a few months and cpu will burn once the warranty expires. Go back to kitkat and check. If temperatures are within the norm, that's stock lp fault. Either stay with KK or use a custom rom.

I smell some cpu overuse here... Do you use task killers? If yes, they do more harm than good, because you kill services that your system will respawn within a few seconds (and use cpu to do that)
Also, a good check with an app such OS Monitor can tell you what is burning down your cpu cycles...
Don't forget to read the temps while idling, if there is no cpu use in idling and high temps (40+) unless you live in Sahara, send your device back to Sony or try to restock and do a clean install of your rom (sometimes this works for me)

Do u use facebook mobile app?
Sent from my A0001 using XDA Free mobile app

CappyT said:
I smell some cpu overuse here... Do you use task killers? If yes, they do more harm than good, because you kill services that your system will respawn within a few seconds (and use cpu to do that)
Also, a good check with an app such OS Monitor can tell you what is burning down your cpu cycles...
Don't forget to read the temps while idling, if there is no cpu use in idling and high temps (40+) unless you live in Sahara, send your device back to Sony or try to restock and do a clean install of your rom (sometimes this works for me)
Click to expand...
Click to collapse
I used os monitor and nothing weird is going on: system uses 30%, systemui uses 15% and my keyboard (fleksy) uses 9% the rest is all 0.1 or 0.0

noahvt said:
I used os monitor and nothing weird is going on: system uses 30%, systemui uses 15% and my keyboard (fleksy) uses 9% the rest is all 0.1 or 0.0
Click to expand...
Click to collapse
System should use 5-10% Max...
Inviato dal mio C6903 utilizzando Tapatalk

CappyT said:
System should use 5-10% Max...
Inviato dal mio C6903 utilizzando Tapatalk
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Click to collapse
It seems like the voltages on every kernel are totally NOT optimised for PVS3 as I can keep slashing 25mV off of the lower frequencies like 300mHz without the device shutting down, could cpu overvolting be the problem?

optimumpro said:
Those readings are abnormal. Your battery will fail in a few months and cpu will burn once the warranty expires. Go back to kitkat and check. If temperatures are within the norm, that's stock lp fault. Either stay with KK or use a custom rom.
Click to expand...
Click to collapse
You are right.... Battery life decreases every day. Now it barely lasts 3 hours :/

Well I guess it just died... Was messing with my ROM and suddenly everything crashed and it never booted again... Not a single ROM works all stuck on a flickering boot animation! Recoveries are also a hot mess
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So anyone having overheating while charging phone.my oneplus one reaches 60-70°c while charging any solution for this?
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---------- Post added at 03:42 AM ---------- Previous post was at 03:41 AM ----------
Which device is this? Which chipset does it have?
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