yashsingh1/xdaforums huggingface dataset:
[G3 General] liamR:
I just received the high performance ARCTIC Thermal Pad, I'll do the mod on the weekend.

http://www.amazon.com/ARCTIC-Thermal-Pad-0-5-Conductivity/dp/B00UYTT3I2/ref=sr_1_64?s=pc&ie=UTF8&qid=1438176961&sr=1-64&refinements=p_4%3AARCTIC
[G3 General] caesar170988:
did u use silicone pad or copper pad ? silicone has very bad heat disipation compared to copper . all you need is a 15x15x05 copper shim and some good quality thermal paste . the buttons on the back will not get hot anymore and the phone wont throttle .
[G3 General] liamR:
So I had a little time and did the mod (with the ARCTIC Thermal Pad), so far it causes my G3 to reboot when the temperature comes near 80 degrees celsius :(
[G3 General] Racer-1:
And how was it before?
[G3 General] liamR:
It seems that my battery is too weak (more than a year of heavy use) to handle the stress (AnTuTu & Stability Test). I connected my G3 to the charger and it didn't reboot anymore.

Before the mod I got ~38,000@AnTuTu

After the mod I get ~45,000@AnTuTu

My temperature is ~10 degrees celsius lower overall.
[G3 General] Racer-1:
Maybe, but it can also be kernel related. Which kernel do you have now? My phone reboots sometimes, because it get's too hot with the new kernels.

At the moment I have MX-4 applied to my phone, but I ordered a copper shim today and I will try it out.
[G3 General] liamR:
My G3 runs on CloudyG3 2.5. Maybe I'll get a copper shim too, but I don't like the mess thermal paste do.

I don't know how much CPUTemp temperature read is accurate but with AnTuTu@~27% the temperature jumps to almost 90c for a moment.
[G3 General] Ophidian_DarkCore:
You guys need to clean the surfaces with 90% alcohol and coffee filters!

I'm guessing it's increasing temps by drawing heat to the copper and then not being able to let it go, or oil is just causing lack of heat transfer...

the metal cover on the cpu can come off too!
[G3 General] Racer-1:
Today the copper shim arrived and it seems that my phone does a reboot too or even gets a black screen. With thermal paste it wasn't that bad.

And even with a thermal pad I didn't have any of the problems.

Edit:

Now it runs. Or at least the last tests of AnTuTu. I have to check it for a longer time.
[G3 General] liamR:
This is weird I got 2 G3s, one with the mod the other one without it. When I run AnTuTu the one with the mod reboots at about 27%, When it connected to the charger it runs ok. I exchange the batteries between them and both passed the AnTuTu bench without any problems (the G3 with the mod was about 10-15c lower). When I changed the batteries back again the G3 with the mod reboots at 27% when running AnTuTu.

Any ideas?
[G3 General] Snoob25:
bad battery i suppose, i've already seen bad batteries that would shut down phone earlier, or under heavy loads like banchmarks or photos with flash

new battery, phone reborn
[G3 General] liamR:
The weird thing is that the same Battery was fine in my other G3 without the mod.
[G3 General] Snoob25:
damn sorry, I missed the "both", that's weird indeed!
[G3 General] christ95:
Which recommended thermal pad?

0.5 mm or 1 mm?
[G3 General] Racer-1:
0.5mm. 1mm is too thick.
[G3 General] christ95:
Thanks, and it's better, for example, 3 or 6 w/mk?
[G3 General] Racer-1:
A higher rating is better, because it can transfer more heat.
[G3 General] liamR:
I used 0.5mm thermal pad and noticed that it's not touching all the chip as it should I then changed it to 1mm and got much better results. If you using copper shim stick with 0.5mm (and thermal paste).
[G3 General] Racer-1:
I tested a 1mm (not 0.1 like you wrote) and it was too thick. Also my Wi-Fi speed were extremely low with that.
[G3 General] liamR:
Typo... How did you know it was too thick (mine fitted very good)?

I don't experience any problems with 1mm, I do get much better temperatures (5-7c lower than it was with the 0.5mm).
[G3 General] Racer-1:
I stacked two 0.5mm pads and the mainboard didn't fit like before. It was a little higher than normal.

I think a 0.7 or 0.8 would be good. Maybe my two 0.5mm pads were a little more than a standard 1mm pad. I don't know.

Now I have a copper shim with MX-4 installed and it works pretty good.
[G3 General] liamR:
I think it should be a little pressed to make sure the surface completely touching. But I also think it will probably be better to go with copper shim and thermal paste. So far I'm very pleased with my results, I did order copper shim incase I'll want to change it.
[G3 General] GTMoraes:
I've got an old AMD stock heatsing, cutted off a heatsink fin, cutted it again to tidily fit (with a good excess to the sides), then placed GC-Extreme both on top and on the bottom of the aluminum fin.

It was a pretty snugly fit with good pressure. Didn't try to stress test, but on casual usage with 4G, it doesn't even get warm anymore. Pretty good
[G3 General] Pacote-san:
Just got my heatsink from ebay.

Size: 15*15*0.8mm

It fitted perfectly

Antutu before and after:

BEFORE

AFTER
[G3 General] dadi11:
what about heat of the screen after doing this mod? it should be hot, when heat is transferred from processor into the screen. please somebody share your impressions and tell me what is better: thermal paste, termopad, thermal tape or something mixed?

Sent from LG G3
[G3 General] liamR:
My screen gets really hot (worries me) when I use Waze more than a few minutes to navigate in a sunny day (ambient about 35c and the G3 in direct sun). Other than that I think it's just fine.
[G3 General] skunk droid:
I am not sure if this mod is long term safe, cause if you watch on youtube the LG G4 disassembly it is possible to see that LG has put an insulator between the motherboard and the metal frame. Besides that, the heat dissipation was improved in LG G4, as now there is a dissipator over the SOC, but it doesn't touch the metal frame.
[G3 General] Racer-1:
I think the SoC with stacked RAM dissipates via a thermal pad into the metal cover and the black thing on the rear side of the display could also be some kind of thermal pad.

The heat has to be transferred away from the SoC and that's the only way I see.
[G3 General] kdoul:
Yesterday night I got frustrated after seeing my g3 crawl when I opened smash hit while charging. Temperature was hitting 90 deg C and freq was jumping between 300 and 650 mhz. Today I decided to try this mod with an aluminum shim cut from an old cpu cooler. Results are amazing. Before, after opening anything the temperature instantly rose to 75 degrees and freq was throttled to 1.5 ghz. Now after running smash hit and riptide gp 2 on max settings (even with performance governor on both gpu and cpu) temp wont go above 66 degrees. Charging and gps/lte in the car was impossible before as I was getting a pop-up saying that my phone will shut down due to extreme heat. Today, the maximum I got was 72 degrees after doing that.

I don't think there is any reason to worry about damaging the display. Before the mod, the cpu was running much hotter and upper part of the lcd panel got very hot because of that. Now, the temperature is lower and that heat is distributed behind all of the panel instead of a single spot.

IMO this mod does not damage the phone but it rather extends its lifespan.

Even lg on the g4 has done something similar.
[G3 General] 3dawg:
Did you use the shim with thermal paste? Thermal paste on the CPU then shim on top? Is that it? Or did you add more paste between the shim and back?
[G3 General] kdoul:
Between shim and cpu, shim and metal plate. The paste was a leftover from another cooler box.

The materials I used are far from good and yet I am seeing the phone idling at 35 deg C.
[G3 General] skui:
Hi everyone!

I really appreciate mods like this, i'm just wondering if we can do better! :)

Looking at the phone, there is a dissipation module yet, and i'm thinking to put some thermal paste on the entire copper cooling surface not just on the chip, inside the red lines (first pic)

Then, I think we can also use some thermal paste on the other side of the chip, here (second image)

there is just an hole with some components (temperature sensors probably) that shouldn't be covered with the paste, but it won't be so hard if we consider the paste must be spread with a little brush or with the tip of a gloved finger

This part will stick inside the red zone of the left side of the next image, where there's already some kind of airflow holes, and i'm considering to put some thin copper foil in the zone marked in red in the right side of the image to spread the heat a bit more (making holes on that to keep the airflow) (third image)

Yes, of course this will spread the heat on a larger area of the screen and on the back of the phone also, but we must consider that more dissipation surface means that we have a lower temperature on a larger area instead of an high temperature on a small area: we will have a larger part of the screen heated with a lower temperature, and that's better than having 70° on a 2x2cm square area

What do you think about this?
[G3 General] Racer-1:
The problems with the reboots is still present. They started about 5 or 6 weeks ago. At this point I had a thermal pad installed.

I got a new battery but not a original one because I couldn't get one.

The problem is that I get reboots when the phone heats up with both batteries even when they are charged to 100% but not when the phone is plugged into the charger.

Did anyone fixed this problem?
[G3 General] Gimic26:
I'm on day 3 of this mod using only thermal paste and the difference is incredible. No lag, less heat and slightly better battery life. Using my phone to watch Netflix on a hot day using 4g used to make the phone get incredibly hot near the camera but not anymore. The phone gets warm, but not blazing. I'm loving it so far.
[G3 General] liamR:
I didn't find any solution, but with 2 months old original battery it didn't happen.

Maybe the heat goes to the battery causing it to fail and reboot the phone.

Is there anyone here with old battery that experiencing the same problem (about a year old battery, try to do AnTuTu test)?
[G3 General] Racer-1:
I ordered a new battery. Hopefully it's really a original and not a fake. At the end of the week I can test it.
[G3 General] Kigsuha:
Any good quality thermal pad that ships to europe, suggestion?

Thanks
[G3 General] arebokert:
Arctic silver ceramique 2
[G3 General] Kigsuha:
Thank you but I was asking for a thermal pad.
[G3 General] arebokert:
Oh, sorry about that. I guess I misread your post. Anyway you can get thermal pads on ebay pretty cheap.
[G3 General] Kigsuha:
So any thermal pad is fine as long they arent electrically conductive ( and of the right size ?)
[G3 General] arebokert:
I believe so. I haven't done this mod yet as I'm waiting for some copper shims to arrive, but I don't think there is a big difference between thermal pads. Maybe someone else who has done the mod with pads could give some input.
[G3 General] torpedrolx:
I solved my problem with kitkat :)

Enviado do meu LG-D855 através de Tapatalk
[G3 General] 3dawg:
15mm x 15mm x 0.5mm copper shim worked perfectly. Artic Silver thermal paste on both sides of the shim. Antutu can actually complete now without overheating and shutting the phone off. Scores jumped from 38k to 45k. Temp idles around 15c lower and never goes above 74c now. Used to pass over 85c consistently.
[G3 General] Danzan:
Last night I put Spire SilverGrease Pro thermal paste which I used for my Notebook CPU. Haven't checked my temps nor I did Antutu test before mod, but here are the results after it:

Antutu score

Temps right after Antutu test

Idle temps

My phone works much better and I don't feel back of my phone is hot as it was before!

Thanks! :)
[G3 General] nerdo:
So you are using only a thermal pad?

With 1 mm thick pad no issues putting things back together? not a squeez?

The pad is it adhesive by the way?

Thanks!

---------- Post added at 04:54 PM ---------- Previous post was at 04:50 PM ----------

Is that a thermal pad or a proper heatsink? maybe a link?

Cheers!
[G3 General] liamR:
I'm using 1mm thermal pad and it works great. No issues whatsoever.
[G3 General] nerdo:
Thanks..... and all others here for useful input and sharing experiences :)

I think I'll go for the pad option as less messy and non electrically conductive

I'll try to find one with optimum thermal conductivity
[G3 General] Kigsuha:
What thermal pad are you using ?

What's your after and before result ?

Thank you
[G3 General] 8vasa8:
Does CCT help after this hardware mod?
[G3 General] Racer-1:
Yes, I always flash the CTT even when the temps don't get that high with the hardware mod. It's free performance.
[G3 General] nerdo:
Amazing difference after thermal pad

So as I mentioned earlier I think the thermal pad is neater, less messy, easy to remove and most importantly non electrically conductive

I went ahead and ordered (eBay) Arctic thermal pad 1 mm thick/thermal conductivity 6W/mK

The pad I got was 50x50mm big, it's tacky btw so it sticks well.

After disassembling my LG G3 I did some measurements and found that chip and corresponding impression on midframe is about 16x16mm.

I cut a piece of the pad about 20x20mm and applied it to midframe covering the chip impression as in pic.

Put things back and it was a bit of squeeze on midframe to get it to fall into place, good thing the thermal pad is spongy so it can be pressed a bit.

[IMG="LG G3 D855 Thermal Pad"]http://i.share.pho.to/d64067b2_o.jpeg[/IMG]

I was impressed by the immediate difference in temp with straining all 4 cores:

temp before: 74C

temp after: 61C

I am not big on benchmarking, but my phone scored about 4K more after mod with same kernel settings.

As pointed earlier upper part of screen does get a tad warmer after mod.

There is no warranty seal. My phone has been to repairs previously because of bezel crack.

For disassembly you can watch this video only until 4:05 and then reverser steps after applying thermal pad, paste and/or shim:

[YOUTUBE]zT2CP-8zmrU[/YOUTUBE]

Thanks to all those who provided details on this mod, it's without doubt a must do :)
[G3 General] biustech:
does anyone noticed drop in wifi performance after this mod? i have checked many times all connections seems ok, i'm using thermal paste instead
[G3 General] Racer-1:
Yes, I had that too when I stacked two 0.5mm pads. With one pad or with a copper shim no problem at all.
[G3 General] biustech:
yeah i noticed that, the antenna connections are not touching with the pad, that's why i replaced with thermal paste, but even so, my wifi is not the same :(, i wonder if lolipop had any involvement with this problem
[G3 General] liamR:
Arctic thermal pad 1mm (cut from 50x50mm sheet to fit the SoC).

Temperature is 10-15c lower.

Got more ~7k in AnTuTu benchmark.

Didn't affect the wifi signal.
[G3 General] dadi11:
nothing
[G3 General] trips555:
An important note, that I'm not sure is posted here: adding a copper shim has the potential to interfere with gps. I did it and it dropped my gps a ton. Removed it and just did thermal paste and the gps went back to normal. Just a consideration for those looking to try this
[G3 General] dadi11:
so now I'm confused.. use only termal paste or buy termal pad?

Sent from LG G3
[G3 General] fiki13:
i am using ur rom, and i got 52k in antutu, i did this mod like 1 month ago.

i use cooper shim, 15*15*0.5mm

and thermal paste above and under the cooper.:good:
[G3 General] Racer-1:
[MENTION=6368230]fiki13[/MENTION]

How did you get 52k?
[G3 General] fiki13:
use CTT 75' for overclocked one and this mod, also set msm max to 2.7ghz

with msm hotplug, gov conservative

forgot to mention rom xenonhd latest

kernel nebula 8.5 T2
[G3 General] TheDainCalleh:
Thermal Paste Mod LG G3 D855

I did the mod on my D855 last night and I've been running it for roughly 24hrs now. I used a very small blob of thermal paste about 5mm in diameter and applied it directly to the chassis. I haven't experienced any extra heating of the screen and the processor seems to be running about 3 degrees (celsius) cooler.
[G3 General] Mietas2:
Hi guys. I registered just to write here.

I did the mod. I used 0.5mm thermal pad - Only - I forgot to buy thermal paste (maybe will do it later).

I did some tests. I ran Antutu test three times in a row before and after:

BEFORE

Antutu 1 - 41955

Antutu 2- 39491

Antutu 3- 38306

----------

[EDIT IN SQUARE BRACKETS]

----------

AFTER / [thermal pad + thermal paste]

Antutu 1- 42617 / [43386]

Antutu 2- 41572 / [42943]

Antutu 2- 41734 / [41953]

I was also able to record in 4K three times in a row, one after another (3x5 min) and the temperature has gone up to 76*C [63-65*C with thermal paste] at the end of last recording. Before it was 79-80*C after 5 minutes (one clip). I think with thermal paste I should be able to record in 4K even longer if not all the time.

So as you can see even without thermal paste it makes a difference.

I would mention that the screen does get warm but you notice it only because the heat is spread more comparing to unmoded device. And the battery after camera test was at 43*C which is understandable: high battery drain coupled with extra heat from screen's frame).

If you want more details please tell me what to do, what tests you want that normal LG G3 would fail (Overheat or drop score/ frame rates) comparing to modified device.
[G3 General] mrjayviper:
I just want remind and recommend that it's better to use non-conducting thermal paste/pads. arctic silver paste has silver particles/dusts in it. might give problems later. :)

edit: just performed the mod (just non-conductive paste for now. shim is on its way) on my G3 (2GB/16GB model) and I've been running Antutu in the hopes it would "settle" the paste. thanks guys! :)
[G3 General] mrjayviper:
to those using copper shim, do you apply paste on both sides (thus making contact with CPU and display metal plate) or just the CPU side? thanks! :)
[G3 General] Racer-1:
On both sides.
[G3 General] ikuraz:
thanks for this idea. I just bought the same pad and cant wait to install it
[G3 General] sylaw:
Alright guys i have a small question to ask.. im runing this thermal mod without a copper shin. just ic diamond compound paste ( @ 2.7ghz im getting around 46000 antutu with around 70ish Celsius) . instead of using copper shins can i use a silver shin? i can get silver sheets cuz my best friends dad is a silver wear designer guy
[G3 General] Abaddon:
silver shims are def better than copper. but copper shims work too and cheaper.

I'd recommend silver from between the two though.
[G3 General] sylaw:
sn't silver a better heat conductor?
[G3 General] Abaddon:
yeah. I got confused while typing. I meant silver instead of copper and copper instead the other. lol sorry. :cowboy:
[G3 General] mrjayviper:
losing GPS connectivity when using the "mod". no problems with GPS without it. steps/things I've tried (in order/sequence)

1. So I put a 0.5mm shim on the CPU and then paste on both side of the shim. This gave me no GPS connectivity.

2. I removed the shim and just thermal paste. still no go

3. I cleaned it up and decided to try GPS without any mods. no problem at all.

4. I just tried shim and paste only on the CPU side and still no go.

5. cleaned it up again and it's now running "bare" of any mods. GPS is back.

I wanna try with pads but I'm unsure about thickness. Any suggestions? Thanks! :)

ps. the paste I used is non-conductive and does not contain silver dusts
[G3 General] 8vasa8:
Hey guys I have Cooper shim on my cpu. But I Have really long loading of data for example between edge and 4g. Is it possible that the Cooper shim do this? I must wait like 20 seconds or some. And it's really annoying

Odesláno z mého LG-D855
[G3 General] danthuongvn:
when your G3 got repaired
[G3 General] jymmiphreak:
I was having issues with my screen dimming too much to see in the daylight due to overheating. I just did this fix with a piece of thermal pad I had lying in my pc parts box for a corsair ram cooler and the issue has gone away! I even underclocked it to around 1700mhz to try to fix the issue (which it only partially did) and now the screen doesn't dim itself after playing a game for a few minutes anymore! I was a bit nervous to pull my only phone almost completely apart, but it went perfectly. The top half of the plastic was a bit difficult to get the outside to unclip, but it did without bending or breaking. It really is as straightforward and easy as everyone is saying. I am having no more gps issues as well. Maps was freaking out due to heat, which kinda sucks since I use my G3 for a GPS for my job, but now it even found me in record time in my house! so far no issues. My screen actually gets less hot than it did before and the back of my phone seems much cooler as well! It was running around 46-47C at idle before, and now it's more like 31-33C! It never even got higher than 36 while playing plants vs. zombies 2 for almost an hour with my cpu set to performance! It hit 85-90C after about 10 mins before and the back of the phone around the camera got almost too hot to touch. now, the whole top of the phone gets a little warm! I'll drop an update when I've had it running for a couple of weeks.
[G3 General] tiguy99:
Thanks!

Think I'll buy a G3 and try this mod too.
[G3 General] jymmiphreak:
After a couple of days, the screen has only done the dimming thing once and it was after a furious session of factory resetting and reinstalling my cm 12.1. It has since calmed back down and has not gotten hot like that again. I intend to do this once more but this time using as5 and a copper shim. I wish there was a way to make the back cover metal. Still, it is working good so far as-is.
[G3 General] topet2k12001:
Tested on D858HK

Hi Friends,

Just wanted to report/share as well. I have a D858HK (the dual-SIM variant).

ROM: Carbon ROM (there's one available for the D856, which is fine for use with the D858HK)

Kernel: whatever the ROM came with

Software or kernel tweaks/mods: none

Cooling mod method: thermal pad only

Material used: leftover thermal pad from my EK waterblock (used for computers e.g. CPU, video cards, etc.), 1mm thick

I unfortunately did not test before application, so I was not able to capture a baseline from which to compare. But I wanted to share the results of the Antutu benchmarks, in pictures. :) I ran the test three times. First attempt was with the phone already running/turned on. The other two attempts were done after a reboot of the device. Scores after the reboot were higher. Maybe because there were apps running in the background (before the reboot).

Overall Score:

1st attempt: 51,145

2nd attempt: 53,073

3rd attempt: 53,290

Click the button to unhide the pictures.

[IMG="1st attempt"]http://xdaforums.com/attachment.php?attachmentid=3587710&stc=1&d=1450992268[/IMG]

[IMG="2nd attempt"]http://xdaforums.com/attachment.php?attachmentid=3587712&stc=1&d=1450992268[/IMG]

[IMG="3rd attempt"]http://xdaforums.com/attachment.php?attachmentid=3587716&stc=1&d=1450992268[/IMG]
[G3 General] Racer-1:
After testing with another phone I found out that I got no GPS fix with the copper shim. Not a single one. After removing the shim and the paste I get a fix after 2-3 seconds. Currently I only have a thermal pad in my phone.
[G3 General] Wj287:
You do know having really think paste instead of a thermal pad can cause more harm then leaving it stock.. At a certain thickness the paste actually holds the heat in instead of transferring like its supposed to. Thermal paste is meant to fill the tiny imperfections in the surfaces of the heatsink. It's not actually meant to be globbed on.
[G3 General] derekoh:
I'm looking to do this hack to my D855, but I'm nervous about using copper because of the reports of affects on GPS and WiFi signal.

Does this look like a good pad to use instead?

Phobya thermal pad XT 7W/mk 1mm

It claims to dissipate 7W/mK which looks pretty good as far as I can tell.

Thoughts?