yashsingh1/xdaforums huggingface dataset:
[Nexus 4 General] LadFromWales85:


Seems my laptop (Dell E6400) has a design flaw. The CPU and chip set share the same cooler. The chip set has a lower temperature limit. The CPU being taxed by prime heats the cooler which in turn heats the chip set and it throttles back the CPU!

It does seem as though more modern laptops from other manufacturers allow the chip and chassis to get very hot before throttling back, whereas my Dell never feels very warm

Next time it wont be a Dell! But it was £200, cant complain :)
[Nexus 4 General] gbroon:
Mine doesn't shut down at 60 missed it showing 102 it cooled a little.
[Nexus 4 General] OverTheBelow:
You trying to kill your phone and/or battery or something? Because you're going the right way to do that lol
[Nexus 4 General] kerman19:
Surely that's meant to read 96F, which would be about 36C. It would be literally impossible to hold the phone at that temperature!

Phil
[Nexus 4 General] gbroon:
There was a quite hot point on the back but I think the app was wrong.
[Nexus 4 General] kerman19:
Use *#*#4636#*#* and see what it reports?
[Nexus 4 General] gbroon:
With 82 in system tweaks shows about 45 for battery. Think system tweaks may be actual CPU temp.

Here's what I get before and after throttle at Max speed. Only 3 cores throttled and temp graph shows stable temp after throttle.

This is on motley kernel with some aggressive under volting.

Hmm just realised the temp showed higher when I had it under clocked in the previous post.
[Nexus 4 General] taxas:
http://www.youtube.com/watch?v=jsPwecrxRKk&feature=youtube_gdata_player

Interesting, another video take a look.
[Nexus 4 General] peachpuff:
System tuner shows cpu temp, stability test on the other hand is using battery temp.
[Nexus 4 General] guest_2011:
I remember my Optimus One would often overheat inside a hot car on a hot summer day just sitting there doing nothing and had to be cooled down if i needed to run apps. I can only imagine how this phone will melt on the dash running GPS in the summer 1-2 hours straight.
[Nexus 4 General] Somairotevoli:
I have yet to see my phone throttle.

Sent from my Nexus 4 using Xparent ICS Tapatalk 2
[Nexus 4 General] vollmilch:
Another thought: we know that the s4 pro can clock its cores asynchronously (correct grammar?). So which core does stability test measure? I don't think every core throttles down..
[Nexus 4 General] jacklebott:
Yes, "asynchronously" is correct grammar. StabilityTest can stress either a single core or all 4 cores at the same time

I just noticed, you were probably asking which core the temperature is detected from, and I think the CPU temperature is shared among all cores. I could be wrong though
[Nexus 4 General] vollmilch:
Sorry, "measure" was the wrong word. My English became a little rusty ;)

I wanted to ask of which core stress test shows the frequency. I don't believe that all cores throttle at the same amount. Is there a way to record every core on its own? Even CPU spy can't do that. Like they don't support asynchronous clock speeds.
[Nexus 4 General] jacklebott:
Oh, then no, it doesn't, it just shows the 1st core's frequency. What you can do is use another app that overlays the different cores' frequencies as you're running the test

EDIT: Here's a link to an app that should show each core's independent frequency, though it costs $2.49. You can probably find a free one that does the same if you search around a bit
[Nexus 4 General] Capt.PP:
How can you rely on a stress test app that can't even show the right Celsius or Fahrenheit?
[Nexus 4 General] italia0101:
That stress test app shows the battery temp !

The CPU tuner shows the CPU temp

The battery temp is what is linked to the throttling .

---------- Post added at 01:47 PM ---------- Previous post was at 01:46 PM ----------
[Nexus 4 General] jb91:
http://www.youtube.com/watch?v=koLJ4BU9tgc

Here's a video. The phone just shuts down after ~12 min. As shown in the video, this is at 22.5°C room temperature. So imagine using an app (game for example) that needs a lot of power, during summer. The phone will just turn off after a few minutes.
[Nexus 4 General] taxas:
Its the same video i posted in the begging mate
[Nexus 4 General] powerwagon:
SGN2 is a BEAST! :D
[Nexus 4 General] gbroon:
Running again it took about 7 minutes to throttle. System tweaks showed 66 for CPU and stress test 37 for battery.

Still running to see how high battery temp will go.

System tweaks shows stable temp of 64 battery about 39 after 15 minutes.

It throttled all cores to 1.3 GHz I put speed back to 1.5 now all cores at full CPU seems stable at 74 battery now shows 43 at 22 minutes.

Half an hour and its not throttled again since I put speed back up. Battery 46 CPU 78.

45 minutes

Battery 50 CPU above 80 no new throttle.

After almost 1 hour battery not much hotter at 52, system tweaks showed 86 CPU temp

My battery went from 92 to 12 % in that hour with screen on

Temperature would probably be higher if I had been charging at same time.

After it down clocked I manually put it back up and it didn't throttle again so it looks like software solution could adjust it.
[Nexus 4 General] ryan92084:
If you are out in close to 60C weather your phone shutting down will likely be the least of your worries.
[Nexus 4 General] d0nnie:
Confused...

Ok, so after reading this thread we have 3 different results... Am i right?!

1. (Swedroid) http://www.youtube.com/watch?v=koLJ4BU9tgc @ around 60 Celsius and phone shutdown after 12 minutes

2. http://www.youtube.com/watch?v=jsPwecrxRKk @ around 37 Celsius after 24 minutes

3. gbroon @ around 51 Celsius after almost an hour of stressing

How come the results are so far apart? Can those phones be from different batches where LG/Google already have fixed the issue or is the one that Swedroid uses the faulty one?

I am trying to figure this our as i really wish this phone to be good enough to purchase and i was convinced before...now, not as much :(
[Nexus 4 General] jb91:
So you made the phone stop throttling, and it was able to do 45 min of full cpu usage, without damaging? Then why does LG set the threshold for the throttling so low? Also, could you run benchmarks like this and see if the results come closer to what should be expected by the hardware of the N4?
[Nexus 4 General] Semitope:
I post these 2 comments on the video. Some things to consider. I would replace that glass back as it's serving as an insulator IIRC

the glass back and the high screen brightness. Whenever i see someone turn on the brightness on the nexus 4 it looks twice as bright as the other phone being compared.
[Nexus 4 General] kerman19:
I'm pretty certain that removing the Glass and replacing it with plastic would actually make the problem worse, Glass is an extremely poor insulator, and has pretty good thermal conductivity compared to plastic which will aid heat dissipation.

Thermal conductivity of Plastic ranges from 0.17-0.50@25C, Glass however is in the region of 1.08@25C

For comparison, copper is 401@25C

Phil
[Nexus 4 General] kanetheninja:
The glass is almost acting as a heat sink in this case. If this behavior is intentional, or at least taken into account when engineering it, it could be dangerous to the device to remove it. I've heard the macbooks can get away with such small fans due to the entire case acting in the same way.
[Nexus 4 General] kerman19:
Indeed! It's not the most efficient means of heat dissipation but I suspect it'll be doing something. I also suspect it's not something that would be relied upon for cooling purposes from a design perspective, because slapping a case on it is a sure fire way mitigate what ever gains were to be had from the Glass back.

I just wanted to clear up that the Glass on the Nexus 4 is not impacting the cooling efficiency.

Phil
[Nexus 4 General] Semitope:
wasn't thinking about plastic. It's also not just about the material. Other phones will have thinner backs. This one has a plastic back on which the glass is placed (I presume). Can't be better than simply having plastic.
[Nexus 4 General] kerman19:
Thicker doesn't always mean worse. If a material has the ability to absorb heat and remove it from the source then having more of it will absorb more heat.

As a side note, plastic is far superior insulator compared to glass, having a plastic back would probably heat the device up, thin or not.

On the reverse side (screen side) of the motherboard sits the RAM and CPU, and then on the front side, directly on top of that sits the LTE chip which has a aluminium foil pad on it, that touches the glass back directly. That'll be why the back of the phone near the camera heats up really fast.

Theoretically speaking, removing that LTE chip would provide a massive hit to the passive cooling of the device in relation to the CPU. Interesting.

Phil
[Nexus 4 General] Semitope:
yeah, but we're talking about 2 poor conductors here. Would it be better to have plastic and glass than to have a thin plastic back that offers less poorly conducting material between the cooler air (that should be carrying away the heat) and the hot components?

I'm just guessing though. Only a proper test could sort it out.

Did anyone in this thread have their backlight at full during their testing?
[Nexus 4 General] kerman19:
If you were talking about the glass back being completely lined with a thin layer of polycarbonate vs a thin layer of just poloycarbonate then the phones would be identical in terms of heat dissipation.

However, the Nexus 4 isn't completely lined with Plastic, a very small portion is. Also as I said above, the CPU/RAM are in contact with the LTE chip, which happens to be in direct contact with the rear glass panel.

Phil
[Nexus 4 General] Anubis007:
isn't the induction coil attached to the back of the phone made of metal?
[Nexus 4 General] bioyuki:
I'm assuming the governor is something that be updated via firmware?
[Nexus 4 General] BennyJr:
Anyone also notice the DNA runs a higher build kernel? 3.4.10 is on the dna.
[Nexus 4 General] jacklebott:
Linux kernel 3.4.19 is used in one of the N4's custom kernels, and it doesn't appear to change much in regard to battery life
[Nexus 4 General] d0nnie:
This is insane for a cellphone. It is a 27% drain in 12 minutes which means that the phone used around 570mah in 12 minutes. This is well above 1C drain and it's no wonder the battery gets hot when you pull out a constant 2.8Amps over 12 minutes.

It feels like this phone could have used a better battery that could sustain a higher constant drain.
[Nexus 4 General] hextreatFLAK:
There's file in Google GIT called "thermald-mako.conf"

Here's the Thermal Throttling and Screen Dimming

80.[batt_therm] 81.sampling 5000 82.thresholds 360 370 380 390 410 420 450 83.thresholds_clr 350 360 370 380 400 410 440 84.actions cpu+gpu+lcd+battery cpu+gpu+lcd+battery cpu+gpu+lcd+battery cpu+gpu+lcd+battery cpu+gpu+lcd+battery cpu+gpu+lcd+battery cpu+gpu+lcd+battery 85.action_info 1512000+400000000+248+0 1296000+325000000+228+0 1296000+325000000+208+0 1188000+200000000+195+1 1188000+200000000+195+1 1188000+200000000+195+2 1188000+200000000+195+3

Why dont we just delete it except 80.[batt_therm] 81.sampling
[Nexus 4 General] mastergamer99:
but is shouldnt get that hot by itself so fair, in the rc area there are batterys which are designed for constant load over 40C, i mean, we are talking about 2,8A, thats not that much... these LiPo cells should have less resistance...

To generate just 0,5W heat inside the battery at 2,8A load the battery must have more then 60mOhm, i dont think so...

i think the S4 Po heats up the battery at most.
[Nexus 4 General] d0nnie:
I don't think the discharge rates of Li Po and Li Ion batteries are close. I do know from RC that Li Po have a way greater discharge rate (i mean i have seen 60C+ batteries) but when it comes to Li Ion i am reading 2C is what they are max designed for. Again, this number changes from manufacturer to manufacturer based on quality and so on. However, considering the test was pulling around 1.4C then i can't help thinking that the battery is getting warm from the discharge rate also not just from the close SoC...

The fact that the Qualcom S4 gets warm and helps warming everything up does not help, but again, i wish i would see the same test with a better or/and bigger battery...
[Nexus 4 General] guest_2011:
it gets warm in the top part when i play Angry Birds only after a few minutes.
[Nexus 4 General] PoisonWolf:
That's where the CPU is. Lol.
[Nexus 4 General] guest_2011:
yes i figured it must be cpu or gpu up there leaking interference to the earpiece. I don't remember any of my phones getting warm when playing angry birds, but it could be that they were only 500 or 1000mhz or i didn't play long enough.
[Nexus 4 General] PoisonWolf:
Or that the plastic was not a good heat conductor. The phone getting warm on the case is a good sign that it's conducting heat and releasing heat adequately. You would not want a thick plastic phone that's really hot on the inside but is cool on the outside. It means that it is essentially an oven inside which in turn would be really bad for electronics.

Even my N7000 gets warm from browsing, etc. Rule of thumb? If you use the CPU, your CPU will generate heat.
[Nexus 4 General] jb91:
Interesting find. Is anyone willing to try this?
[Nexus 4 General] rootuser11:
looking at how the battery temp increases like this, i don't care really. it is bad per se.
[Nexus 4 General] vodred:
Don't the wireless charging orb and the slimport harm the battery too while we use them?
[Nexus S General] dscatto:
Well, I'm moving on to the SGS3 forums. It's been a great couple of years with my NS4G, but I sold it & took advantage of the Black Friday deal that Sprint was having. I'm going to miss the stock experience & "quick" updates, but I've heard the Dev community for the SGS3 is great. So, far I am loving the phone. It's responsive, the batter life is incredible, & the radios in the phone are definitely better. Plus, it's nice to be able to pick up the 4G LTE tower they recently built a few miles down the road :D

However, I won't have to miss the Nexus experience for too long because I am getting an awesome Christmas present! A 32 GB N10!!

Thanks NS4G Community, y'all have been great!
[Xperia Arc Q&A, Help & Troubleshooting] ClosureDX:
Hi (and sorry for my bad english)

Today i got a problem with jellysandwich, i try to install this rom with my arc s with bootloader not allowed to be unlock. When i finish the installation in aroma i reboot and the screen stop at sony logo, someone have n idea about my problem ?
[Xperia Arc Q&A, Help & Troubleshooting] SXUsr:
Reflash a stock ROM and try again. See the first link in my sig too before replying. ;)
[Xperia Arc Q&A, Help & Troubleshooting] ClosureDX:
But which one stock ? And in "how to" install the rom.they say fix permission in cwm but i can't see this option
[Xperia Arc Q&A, Help & Troubleshooting] SammiSaysHello:
stock rom for arc

stock rom for arc s

Here is tutorial on how to flash stock rom

root your phone after flashing stock rom (you should know how because you could flash custom rom before despite it failing

make sure in cwm before installation

1. Wipe data/factory reset

2. wipe cache partition

3. go to mounts and storage menu and\

4. format /system

5. format/data

6. format cache

7. exit mounts and storage menu

6. go to advance

7. wipe dalvik cache

8. wipe battery stats

9. exit advance

10. install Jelly sandwich from sd card without rebooting
[Xperia Arc Q&A, Help & Troubleshooting] ClosureDX:
And there is a post to know how to root the arc s 4.0.4 or i need to downgrade first ?
[Xperia Arc Q&A, Help & Troubleshooting] SammiSaysHello:
here is a good thorough guide :)
[Xperia Arc Q&A, Help & Troubleshooting] ClosureDX:
For cwm i use SE extreme tweak installer is that good or there is a new version ?
[Xperia Arc Q&A, Help & Troubleshooting] SammiSaysHello:
I use "x-parts". Search in Google Play :)

Sent from Xperia Arc S
[Xperia Arc Q&A, Help & Troubleshooting] TheHaso:
Wont xparts recovery kill system partition if you format it?
[Xperia Arc Q&A, Help & Troubleshooting] ajebulon:
does anyone have stock GB for LT18i?
[Xperia Arc Q&A, Help & Troubleshooting] rhastaboy:
will using GB 2.3.4 stock work?

If I flash back to the GB ROM that's available when I use EMMA (when I tried earlier it is the only "service" that came up). Then do the steps outlined here, will it work? Or should i use the 4.0.4 ROM in the link that you provided? -> http://www.filehosting.org/file/details/399620/LT18i_4.1.B.0.587_Generic_Global.ftf
[TouchPad Q&A, Help & Troubleshooting] amkaos:
Hi:

i wanted to view pics in gallery... shows as -0- pics in all of gallery.. then i get error: unfortunately gallery has stopped ..

cleared apps cache, reboot to rec and cleared cache and delvik.

no change..

google talked about reinstall gapps.. did so; used 429.

settings > app > shows as some 7 mb so i dont think its empty..

i did not delete any pics atall

any help is greatly appreciated.

i mounted TP to winxp and pics i care about are in correct folders..

thanx

edit:: i had "media storage " app disabled so another app would work..re-enabled and all is well..
[Xperia Arc Q&A, Help & Troubleshooting] centi50:
Hello to everyone,

Please can Anybody give me Xperia Arc Stock GB.62 wifi Modules.

My Arc is Bootlocked

Thanking all in Advance
[Xperia Arc Q&A, Help & Troubleshooting] Destroyedbeauty:
Is CWM installed on your device? If not, u need to flash stock firmware. Again.
[Xperia Arc Q&A, Help & Troubleshooting] centi50:
Yes CWM Installed
[Xperia Arc Q&A, Help & Troubleshooting] Destroyedbeauty:
Here:

Stock Wi-Fi modules

Put modules on SD-Card, flash them through CWM and you'll get stock Wi-Fi functionality back again!
[Xperia Arc Q&A, Help & Troubleshooting] centi50:
Thanks Alot Man
[Xperia Arc Q&A, Help & Troubleshooting] Oohhlala:
is there any way to install custom wifi module for ArcS lockedbootloader ? and is there any wifi module that increase the connection ability of wifi ?
[Xperia Arc Q&A, Help & Troubleshooting] Destroyedbeauty:
Nope, I don't think so because custom WiFi modules are related to custom kernels. Sure, it is never impossible to mod existing stock modules for that increased connection you are searching and still staying on stock kernel

The best way to get any answer on this question is to ask someone of the kernel developers :)
[Xperia Arc Q&A, Help & Troubleshooting] Oohhlala:
can i install the stock kernel which modded in advance ? or just only install modded wifi module for locked fone
[Xperia Arc Q&A, Help & Troubleshooting] Destroyedbeauty:
Huh? O.o
[Xperia Arc Q&A, Help & Troubleshooting] Oohhlala:
sorry for my bad english :p i mean a wifi module which included a custom kernel as arknghit that can be flashed via CWM for locked bootloader phone
[Xperia Arc Q&A, Help & Troubleshooting] Destroyedbeauty:
Aha you meaned it that way.. Nope that is not possible because custom WiFi modules requires custom kernels and without unlocked bootloader - you are stuck to signed, stock firmwares from Sony / Sony Ericsson.
[Xperia Arc Q&A, Help & Troubleshooting] Oohhlala:
i have tried some advace wifi module for locked bootloader but i didn't find out any one
[Galaxy Note II Q&A, Help & Troubleshooting] a5ian300zx:
Hi all,

I have a rooted phone with Acid audio Mod but still find the in call volume when speaking to someone quite low, is there any way to increase this?

on my SG3 i use to have STweaks which had a option for this if i remember correctly, not sure if this would work on the Note 2?

does the Megabass mod increase in call volume?

any feedback appreciated?
[Galaxy Note II Q&A, Help & Troubleshooting] jujuburi:
I don't know but the 'volume boost' feature is enough for more than loud volume, no need to flash any mods. Besides they distort the volume always.

Sent from my GT-N7100
[Galaxy Note II Q&A, Help & Troubleshooting] a5ian300zx:
hi,

where can i find this feature?

thanks
[Galaxy Note II Q&A, Help & Troubleshooting] gee2012:
Install this sound mod from here http://xdaforums.com/showpost.php?p=32538351&postcount=16. Unzip it and paste in sytem/etc. First backup the original default_gain.conf.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] waz000000:
just picked up a note and when i use a voda or orange sim everything works but if i try 3 or o2 it just comes up saying insert sim card, ive ran the galaxunlock but that says already unlocked im stumped as to why it doesn't work

any one got any idea whats up?
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] nokiamodeln91:
if its a new note, take it to the service center and show then
[Galaxy S III Q&A, Help & Troubleshooting] BaronInkjet:
New I-9300 owner here on AT&T. I noticed today that my phone says HSDPA in network settings. Is this the same thing as HSPA+? Do I need to change some settings someplace? I am temporarily in small town, so hard to tell from speed tests -- best I have seen so far is 2704 down.

Thanks for your help!
[Galaxy S III Q&A, Help & Troubleshooting] BaronInkjet:
Another thing I can't figure out is how to choose an APN. I set up one to match my GS2, but after I select it, it switches itself back to one AT&T set up. ???
[Galaxy S III Q&A, Help & Troubleshooting] d4fseeker:
There is no such thing as HSPA in technology - only HSUPA (HSPA Upload) and HSDPA (HSPA Download) - which are cooperative but not necessary for each other.

Sounds as if the Apn failed, so it tries the other ones. An easy method is to delete the other APN's and hope it understands what you want
[Galaxy S III Q&A, Help & Troubleshooting] dutch55:
I don't think your statement that "there is no such thing as HSPA" is correct.

The Samsung PDF user manual for the I747 lists both HSPA and HSPA+ where it explains the 4G icons, and I have personally seen both HSPA:11 and HSPAP:15 on my device by looking at Status > Mobile network type.
[Galaxy S III Q&A, Help & Troubleshooting] KYT:
I know this is an older thread, but I was just reading this support document yesterday:

http://support.t-mobile.com/docs/DOC-4987

http://support.t-mobile.com/docs/DOC-4988
[Galaxy S III Q&A, Help & Troubleshooting] danarama:
Dunno.

My phone has (in order of speed)

3G

H (HSDPA)

H+ (HSPA+)

It doesn't do 2G on my network.

So I assume that H is actually just HSPA.
[Galaxy S III Q&A, Help & Troubleshooting] Cool_of_Finland:
I've seen the following marks on my S3 (International 16GB, Stock 4.1.2).

G

E

3G

H

H+

G is barely usable. Like 0.02mb down, ping over 1000.
[Galaxy S III Q&A, Help & Troubleshooting] Mord0rr:
Im living in Portugal and i have the same question. Normally

i have E or H

. When im talking appears 3G...:confused:

Im using I9300 and 2G+3G.

Tks!
[Galaxy S III Q&A, Help & Troubleshooting] Glebun:
G is GPRS, E is EDGE
[Galaxy S III Q&A, Help & Troubleshooting] ag4751:
If you really want to know these will explain it all in full

HSPA+

HSDPA

HSDPA download speeds up to 42mbps where HSPA+ has download speeds up to 337mbps with release 11, 168mbps with earlier release 7
[Galaxy S III Q&A, Help & Troubleshooting] Donald K.:
E - edge = slowest

G - gprs = slow

3G = "normal" speeds

H - HSDPA = Faster download speeds

H+ - HSPA+ = Fastest speed on the S3

4G = 3 times as fast as 3G, only on LTE version
[Galaxy S III Q&A, Help & Troubleshooting] danarama:
Edge is faster that GPRS. GPRS is 2G. Edge is 2.5G
[Galaxy S III Q&A, Help & Troubleshooting] Donald K.:
Oh sorry my fault!
[Galaxy S III Q&A, Help & Troubleshooting] danarama:
No problem. Lets hope none of us have to use gprs or edge anyway ;)
[Galaxy Note II Q&A, Help & Troubleshooting] hsb50:
Could any one confirm whether following windows features exist on the N7100 or not ?

1.Any app for defragmentation like in microsoft windows ?

2.Any app for system restore ?

3.Any other windows feature on N7100 ?

Thanks
[Galaxy Note II Q&A, Help & Troubleshooting] almaalma74:
windows features? There is Android on N7100, not windows... what r u speaking?

in Android: no defrag, no sys restore, no other outdated windows features