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[Q] UK D855 model overheating?

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By jusumgeezer, Senior Member on 30th June 2014, 02:51 AM
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11th November 2014, 07:46 AM |#11  
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To further my last comment, if you've hardly got anything installed, then do a quick backup and then install something like 10m (which world perfectly for me) and do a full flash wiping everything.
If I didn't do that, then it got so hot then I couldn't keep the phone in my pocket and had to turn it off !! The heat comes from very close to the volume buttons, and it worried me how hot it was getting.
 
 
30th May 2016, 04:23 PM |#12  
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Mine is burning up in use or on charge, i just checked temps with cpu z and temps were at 81c, 79c, 75,c
81c, etc etcvery warm indeed, yes i have a lot of apps installed and i did have a few running at the time but Jeezz this thing is like a portable radiator, i have a case on it with the quick circle cover but it's the slim model that replaces the rear part of the original case so not packed inside extra plastics, ive never had such a hot phone.

I have tried a few things to try and tackle the problems but with no joy, i'm also constantly running out of space on the internal memory despite moving all the movable apps to Ex SD card, my phone is routed and running fulmics 5.1 rom
20th June 2016, 06:21 PM |#13  
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Same here, using D855 from Hong Kong, I have already done a factory reset/wipe.
Unmounting the SD card does help a bit in my case, still, it does not solve the problem.
As long as I turn on the screen and make some touches, it will start overheating for no reason.
14th September 2016, 12:13 PM |#14  
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Same for me. When I watch 3d sbs 180 videos, after around 25 mins the phone has given a warning and then shortly afterwards shut itself down.
I replaced the circle case with a more common style back cover that I bought from aliexpress and put a new battery into it, but the problem remains.
10M is an earlier android built from 2014, right? Will the problem be solved if downgrading? I wouldn´t mind really.

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18th September 2016, 11:46 AM |#15  
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Quote:
Originally Posted by jazzl

Same for me. When I watch 3d sbs 180 videos, after around 25 mins the phone has given a warning and then shortly afterwards shut itself down.
I replaced the circle case with a more common style back cover that I bought from aliexpress and put a new battery into it, but the problem remains.
10M is an earlier android built from 2014, right? Will the problem be solved if downgrading? I wouldn´t mind really.

Thanks

So, I´ve been trying to downgrade using LGUP. The new version of this keeps telling me that my phone is unknown, and old version gives an error after 4%.
On some of the pages I found about how to do it, it´s saying that I need to change the LGE port to 41 in Windows. When doing that, my windows (10) freezes and I have to reset the computer.

Any ideas about what I may be doing wrong or suggestions to other methods?

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28th September 2016, 04:35 PM |#16  
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Quote:
Originally Posted by jazzl

So, I´ve been trying to downgrade using LGUP. The new version of this keeps telling me that my phone is unknown, and old version gives an error after 4%.
On some of the pages I found about how to do it, it´s saying that I need to change the LGE port to 41 in Windows. When doing that, my windows (10) freezes and I have to reset the computer.

Any ideas about what I may be doing wrong or suggestions to other methods?

Thanks

Allright, I´ve done it!
I used the old 2014 LGupgrader, but instead of running it via a network mounted drive, as I´d done it up till this point, I did it directly from C:/Temp. This was the key to success for me. I had it stuck for a couple of mins at 9 %, but it suddenly continued. This may have to do with the available internal mem. Some ppl say there should be 2 GB free, but I had only 1.51 GB free.
Temp is now 12 C less than before at similar operations.
28th September 2016, 11:30 PM |#17  
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The excessive heat has been reported as an issue across all models of the G3. The best solution is to use a thermal pad on the SoC. That helps spread the heat to the metal chassis, reducing your temps from 10-15 degrees Celcius. Get any 0.5mm thick thermal pad, cut it down to 14x14mm, clean both the SoC and the surface on the chassis with alcohol, apply pad and be sure to tighten screws as much as possible without stripping. I've been using this mod on both of my G3's for almost 2 years, and it does not void your warranty. Good luck!
1st October 2016, 12:52 PM |#18  
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Quote:
Originally Posted by AlwaysLucky

The excessive heat has been reported as an issue across all models of the G3. The best solution is to use a thermal pad on the SoC. That helps spread the heat to the metal chassis, reducing your temps from 10-15 degrees Celcius. Get any 0.5mm thick thermal pad, cut it down to 14x14mm, clean both the SoC and the surface on the chassis with alcohol, apply pad and be sure to tighten screws as much as possible without stripping. I've been using this mod on both of my G3's for almost 2 years, and it does not void your warranty. Good luck!

Do you have a link to such a thermal pad and maybe a link to a vid showing how it´s done?

I was a bit too quick saying that my problems are now solved. I still get much nicer temperature, but VR videos skip frames alot, where they´d go smooth before. I´m wondering if Lollipop is throttled so it won´t get too hot, and does not have the power to play the vids, where Marshmallow pushes the hardware to the max, and then it gets hot.
Would anyone disagree with this?
Also, when did the overheating get introduced? If it´s not there in 10m, maybe there´s a build closer to Marshmallow that will let the hardware work a bit more, without heating too much up.

Ok, I found a pretty decent solution:

http://www.androidauthority.com/lg-g3-problems-517832/

The part about amending the High Temperature Property OFF setting seemed to do the trick. Now VR vids play more smoothly and though it - obviously - gets hotter, it won´t get as hot as with Marshmallow.
With Marshmallow I´d get a warning at 57 C, and then it´d shot down a few mins later. Now, after about the same amount of time using the phone with a VR vid, it shows 49 C, which is acceptable.
2nd October 2016, 10:53 AM |#19  
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Quote:
Originally Posted by jazzl

Do you have a link to such a thermal pad and maybe a link to a vid showing how it´s done?

Use this video for disassembly.

And this is an example of a thermal pad you can use.

The heat issue is a hardware design flaw. The issue can be minimized with software, but the only way to truly solve it is a thermal pad or some other way to allow the heat to escape faster. It's easy to do, just take your time and use the right tools.
3rd October 2016, 04:32 PM |#20  
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Quote:
Originally Posted by AlwaysLucky

Use this video for disassembly.

And this is an example of a thermal pad you can use.

The heat issue is a hardware design flaw. The issue can be minimized with software, but the only way to truly solve it is a thermal pad or some other way to allow the heat to escape faster. It's easy to do, just take your time and use the right tools.


Allright, thanks. Maybe a dumb q, but how do I recognize the SoC?
3rd October 2016, 08:24 PM |#21  
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Quote:
Originally Posted by jazzl

Allright, thanks. Maybe a dumb q, but how do I recognize the SoC?

Not a dumb question at all. It's also referred to as the CPU and it's the biggest chip on the logic board. In the video, he shows the chip at 4:08 when he pulls out the logic board. Once you're at that point, you can apply the pad and reassemble.
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