Database Users

HELP: Battery stuck in DHD and won't slide out!

Man is this the stupidest problem ever...
The good news: I finally got my DHD yesterday...
The bad news: The battery cover is as bad as I've been hearing. For some reason I couldn't put it back on. So I pushed the Battery as far in as I could in order to put the cover on. The phone works great, but now the battery is stuck inside and won't slide out by itself and I don't know how to take it out
Please Help...

Put your fingers flat on the table, same width as the battery door.
Rest the DHD on your fingers (so that the battery door is facing the table.
Raise the DHD an inch or two and bring it down on your fingers (not so hard that it hurts).
Keep doing this, the battery will work its way free and drop onto the table.
I'll add a pic in a sec...

Thanks James, this definitely sounds very doable; I'm giving it a try now!

The battery has moved about half an inch now!! This is working *jumping up and down with joy*
I got the battery out!! Why does everyone else's battery just seem to slide out by itself? I thought it was because I pushed it too far in, but even when the battery is half way out, I still have to pull it out with some effort...
Maybe my phone just has a lot of "friction"? When I watch those YouTube videos, everyone seems to glide their fingers smoothly across the screen, but when I do it, it feels very fricative...do you guys put on hand lotion or something...

Do not press the screen too much, only a slightest touch is needed. Also if you have moist hands, it makes swiping the screen harder.

nubicurio said:
The battery has moved about half an inch now!! This is working *jumping up and down with joy*
I got the battery out!! Why does everyone else's battery just seem to slide out by itself? I thought it was because I pushed it too far in, but even when the battery is half way out, I still have to pull it out with some effort...
Maybe my phone just has a lot of "friction"? When I watch those YouTube videos, everyone seems to glide their fingers smoothly across the screen, but when I do it, it feels very fricative...do you guys put on hand lotion or something...
Click to expand...
Click to collapse
Probably because its a new phone. You have to play with it a little bit until the oil from your skin lubes up the screen. Then its all slidey slides.

I had a similar problem with my first DHD... part of the the plastic wrapper around the battery had folded back on itself along the forward edge of the battery. That caused the battery to get wedged inside. A little trimming of the plastic wrapper with a craft knife fixed it... YMMV
Sent from my Desire HD using XDA App

you sure you didnt put it back in upside down or something?

rossysaurus said:
you sure you didnt put it back in upside down or something?
Click to expand...
Click to collapse
I'm pretty I didn't because the phone was working but seriously I could totally go without the cover; the battery really gets stuck in there when it's inside!

nubicurio said:
I'm pretty I didn't because the phone was working but seriously I could totally go without the cover; the battery really gets stuck in there when it's inside!
Click to expand...
Click to collapse
No you can't - the WiFi/BT antenna is in that cover .

would've given you some extra grip tho
Now seriously, if when u look at ur battery there's no visible flaws that u can safely and/or easily remove and if your screen keeps giving you the finger in my opinion you should return it for a replacement. There's been enough faulty hardware cases, the folks at HTC know the drill by now. If that's not an option, sell it on ebay ( or your local online market ) and grab a new one;]

tkolev said:
No you can't - the WiFi/BT antenna is in that cover .
Click to expand...
Click to collapse
And I was wondering the whole time why that piece of plastic would cost 19 Euros!
bahkata said:
would've given you some extra grip tho
Now seriously, if when u look at ur battery there's no visible flaws that u can safely and/or easily remove and if your screen keeps giving you the finger in my opinion you should return it for a replacement. There's been enough faulty hardware cases, the folks at HTC know the drill by now. If that's not an option, sell it on ebay ( or your local online market ) and grab a new one;]
Click to expand...
Click to collapse
AWWW it's just my stupid, clumsy fingers are still trying to learn how to swipe across the screen...think I'm getting a hang of it now ...luckily no major flaws with my DHD so far *knock on wood*

Join the club and stay in

I got an aftermarket battery stuck in my DHD and had basically given up on getting it out until I found this thread. Nice work! Worked a treat after tapping it for what seemed like a couple of minutes.
Slow and steady wins the race!
Cheers guys

Really strange screen issue

Hi all
So I just installed a few games on my Nexus 4 this evening and noticed some areas of the screen not responding. Its isolated to about a 1cm from the left on my screen. When I enable the "show touches" option under developer options I can see the ball jump when I move my finger over the area. Whats odd is that the very edge reports OK and I can swipe to Google Now without issue.
I was using PA with Franco and just as a test revered to stock and it seemed to work however after about 5 mins it went back to the same behaviour. Once again I installed my stock nandroid and now its just jumping like it was. So confused!
I guess some software is running and causing issue or the screen is over sensitive in that area me touching it is causing issue. Its worth noting that I changed the screen a few days ago so it could be the connectors but could it be isolated due to a connection?

bert682 said:
Hi all
So I just installed a few games on my Nexus 4 this evening and noticed some areas of the screen not responding. Its isolated to about a 1cm from the left on my screen. When I enable the "show touches" option under developer options I can see the ball jump when I move my finger over the area. Whats odd is that the very edge reports OK and I can swipe to Google Now without issue.
I was using PA with Franco and just as a test revered to stock and it seemed to work however after about 5 mins it went back to the same behaviour. Once again I installed my stock nandroid and now its just jumping like it was. So confused!
I guess some software is running and causing issue or the screen is over sensitive in that area me touching it is causing issue. Its worth noting that I changed the screen a few days ago so it could be the connectors but could it be isolated due to a connection?
Click to expand...
Click to collapse
Ok so I was able to use the old screen (cracked) in a frankenstein fashion and it works 100% of the time. The current seen seems to work for a while and then goes back to missing that area.
Will try and return for a replacement.

bert682 said:
Ok so I was able to use the old screen (cracked) in a frankenstein fashion and it works 100% of the time. The current seen seems to work for a while and then goes back to missing that area.
Will try and return for a replacement.
Click to expand...
Click to collapse
Update 3
So the issue has progressed to being intermittent. It will be broken for a few hours, then work OK for a few. This can happen at random,so, not plugged in as I suspect heat was an issue. I can get a text, its broken, pocket the phone and in 5 mins when I get the reply it can be working again.
Ive made a video of what its doing, notice the white dot "jump" when compared to the right.
https://drive.google.com/file/d/0B0i6bdx3f4lWd3VmTWZXM0tjMTQ/edit?usp=sharing
Any suggestions?

You need a different screen if you want to fix it.

bert682 said:
Update 3
So the issue has progressed to being intermittent. It will be broken for a few hours, then work OK for a few. This can happen at random,so, not plugged in as I suspect heat was an issue. I can get a text, its broken, pocket the phone and in 5 mins when I get the reply it can be working again.
Ive made a video of what its doing, notice the white dot "jump" when compared to the right.
https://drive.google.com/file/d/0B0i6bdx3f4lWd3VmTWZXM0tjMTQ/edit?usp=sharing
Any suggestions?
Click to expand...
Click to collapse
Check that the flex cable isn't damaged, dirty or loose before you bother with a replacement. Either way, you probably need a replacement screen

lopezk38 said:
Check that the flex cable isn't damaged, dirty or loose before you bother with a replacement. Either way, you probably need a replacement screen
Click to expand...
Click to collapse
Yea I took it all apart and while the new one was connected I was able to connect the old one, upside down etc. It worked OK. Did a bit of a blow and properly pressing down on the connectors.
I could accept the screen is at fault at return it but when the issue is not 100% of the time I know my luck will be that when it gets tested at the sellers end it will work, get sent back to me and be broken again.
Have some monitoring apps running now so I can tell of its heat. Since this side is away from the battery im less incluined to think its heat from that. The motherboard does run down that side so it could be something in that? Ever seen any reports of that getting too hot?
Could even be heat from the antenna cable somehow?
Strange that it spans the whole length though.
Ill risk the return I think, got a video of it being broken so will see what happens.

Run over to Radio Shack (or whatever the equivalent is in what ever country you're in - I don't know where you are) and find a product called Deoxit/Progold. Deoxit cleans the contacts from oxidation, Progold enhances conductivity. Or find something similar.
This stuff is great for blasting inside headphone jacks to get rid of the "scratching" when your plug gets moved around, to fix iffy USB connections, etc. A little goes a long way. I don't know if it'll solve your screen issues, but it's worth a try, and if it doesn't work, you can still use it on other things, so it's not a waste of money.

Planterz said:
Run over to Radio Shack (or whatever the equivalent is in what ever country you're in - I don't know where you are) and find a product called Deoxit/Progold. Deoxit cleans the contacts from oxidation, Progold enhances conductivity. Or find something similar.
This stuff is great for blasting inside headphone jacks to get rid of the "scratching" when your plug gets moved around, to fix iffy USB connections, etc. A little goes a long way. I don't know if it'll solve your screen issues, but it's worth a try, and if it doesn't work, you can still use it on other things, so it's not a waste of money.
Click to expand...
Click to collapse
Wow, that stuff isnt cheap. Lets hope a little does go a long way!
Thanks, have ordered a small bottle, will give it a go.
I noticed that my new screen is genuine LG (at least its stamped all over it) but the one I removed seems to be a 3rd party replacement. Its got some areas that "look cheap" in comparison. Its got a small foil coating over the flex cable where as the one I removed didnt. I assume its to protect and move heat away?
Few forum posts mention the use of 3rd party chargers....I have used a cheap one when I am in work. I have used in on my old HTC Desire HD and my Lumia 520 and never had an issue. Do you think it could have damaged the digitiser?

bert682 said:
Wow, that stuff isnt cheap. Lets hope a little does go a long way!
Thanks, have ordered a small bottle, will give it a go.
I noticed that my new screen is genuine LG (at least its stamped all over it) but the one I removed seems to be a 3rd party replacement. Its got some areas that "look cheap" in comparison. Its got a small foil coating over the flex cable where as the one I removed didnt. I assume its to protect and move heat away?
Few forum posts mention the use of 3rd party chargers....I have used a cheap one when I am in work. I have used in on my old HTC Desire HD and my Lumia 520 and never had an issue. Do you think it could have damaged the digitiser?
Click to expand...
Click to collapse
Interestingly enough , the original digitizer is wrapped with aluminum tape. Some knockoffs have a better cover in fact. They use a hard aluminum sheet instead of aluminum tape. Some knockoffs don't have that shielding which is bad because that tape is there to keep the IC from getting spammed with useless data by radio frequencies and such.
If you haven't dropped your device , i don'T think it is likely that there is a problem with the glass. It's most likely the IC.
You could transfer your old flex to your new glass which is easy but you need some seriously steady hands.
When you remove the glass from the frame , you will see the flex cable's contact zone. It's basically the part where it connects to the glass. If you heat that area up with a heat gun it's gonna come right off when the solder beneath melts. Take out the new one and the old one. You need a flathead tip for your solering iron , which is like a flathead screwdriver. Simply take some solder and spread that solder around the contact dots , don't worry it won't stick to the plastic but it will melt if you keep it at the same spot too much. When you're done spreading , there are two dots with which you can align your old flex cable to your new glass. Use some adhesive tape around the alignment dots and Align the dots with your flex cable (you'll know which dots when you see it because it's orange and kinda stands out) press it so the adhesive holds and then use your heat gun and melt the solder to the contact zone.
It's actually easier than it sounds.

Theory on Potential Partial Cure for Random Restarts/Freezing (Long Post)

First and foremost, I don't promise this will fix anything as it has only worked for myself, but let me share my experience/journey and see if this can help at least another person in the same boat as I am.
If you do not want to read the entire story, feel free to skip to the break below.
Back story:
I got the phone in Hong Kong back in November. It's a 505 H815TR. (Don't ask me why I ended up with a Turkish phone, I have no idea)
The phone worked fine for about two weeks, then it would one day start to restart randomly. It also started happening more and more frequent, and the phone might fail to boot at all.
Sometimes it would just freeze on a screen and there'll be artifacts like the GPU overheated. When that happens the phone wouldn't even respond to a hard power-off (holding power for 4 seconds+) and I'd have to take out the battery.
Unfortunately for me, I have since went overseas and LG would not honour the motherboard swap. I also didn't want to sell this otherwise great new phone to another unfortunate soul either. So I'm stuck with the few hundred bux worth of not-quite junk. Determined to not let the money go to waste, I still tried to use it as a daily driver but it had gotten so bad at one point that I had to keep taking the battery off and restarting every few minutes during a meeting like an idiot.
So I tried upgrading the firmware, in hopes that it'll at least improve the situation. It was the 20c firmware. I used LGUP to upgrade it and it got better, if only for a while.
I thought, hey it ran better! Maybe I can stick it out, and sucker up the less frequent restarts. It will run okay for a week or so with occasional restarts. Then it suddenly got bad one day I opened up Maps for navigation. It would suddenly go back to a few restarts an hour.
At this point my hypothesis is that apps/sensors that would require a hike in power can trigger the crash. (duh!) So I turned off Bluetooth/GPS/disable every other app that I can think of. While it help a BIT, it certainly did not alleviate the problem. It had only gotten worse as time goes.
A few weeks went by, 20d came around. Hoping situations would improve, I upgraded the phone.
The problem got WORSE. I thought that's weird, the new version should have came with optimizations and gave less work the phone - hence it should freeze less. Puzzled and disappointed, I flashed back to 20c and was prepared to bite the bullet and accept it as lost cause. To my surprise however, when 20c finished generating cache and booted up, things started looking better again. It would run a few DAYS without problems. I got even more confused. If the problem was purely triggered by spikes of load, going back to the old firmware should have little to no effect. Something else must be going on. Before long, the problems came back and I'm plagued by the restarts again.
I came up with 2 possible hypotheses:
1 - It had something to do with cache
2 - It had something to do with Doze optimizations
Number 2 was easy to test. I went to settings and ignored every possible optimization (****ty UI on that screen by the way. It takes forever to scroll to anything and the checkboxes don't save until you exit the menu. When a restart hits before I exit the menu all progress is lost and I had to start from beginning :crying: ). I ran for a few more days and it seemed to have little impact.
So I was fairly confident at one point that it had to do with cache. Unfortunately, the G4 (at least my G4) does not have an easy access to erasing cache (which was incredibly annoying LG!). The so-called stock recovery only has an option to wipe the phone and obviously I didn't want to do that. I also did not want to temper with bootloader for the same reasons aside from the risk of bricking the phone. I had remembered that when I upgraded the firmware the cache gets wiped and it'll be regenerated on first boot. So I thought I'll just flash the same firmware and I'll be done! To my demise, apparently flashing the same kdz does NOT trigger the cache generation process. What I had to do was to flash 20d, boot that, and flash 20c again.
Things started to look better here. It ran fine. It did not crash for about a week or so. I thought it was a fair compromise. I can deal with a quick refresh(flashing 20d and then 20c again) once a week. Whenever I see signs of the restarts, I would quickly refresh when I got home that evening and it will be good for a week or so. Here I was ready to finalize my theory until...
It crashed. Soon after one of my routine refresh. I thought this was interesting? If it had to do with some kind of cache buildup, surely it would not crash right after a refresh? What's weirder still was it stopped doing that after 2-3 times. Something ELSE MUST be contributing to this. What else was related to the process of cache generation that could affect the stability of my system?
Here ladies and gentlemen, is what my little pea brain have came up with, through trial and error, no engineering background, limited tech knowledge, and limited common-sense:
It had to do with the activity of the CPU; or more precisely, it may have to do with the extended heating process that caused some component around the area to change in some kind of state, and thus improving the stability for a duration until it gradually changes back with time.
Engineers are probably laughing at me right now. I know it probably makes no sense, but it's the best that I can come up with. So I come to you guys, maybe some may help shed some light on this issue that plagues those of us who are stuck with the problematic phones that are not eligible for exchanges/repairs.
Anyway, to test my theory out, I downloaded some kind of stress tester from Google Play (I used StabilityTest v2.7)
I would wait until the phone starts restarting again (and it will, and when it does happen the stability dropped SHARPLY, from no restarts to maybe 2-3 an hour).
Then, I would run StabilityTest. I chose the classic stability test, and just let it run.
The first time it ran, it did not survive the first 10-15 mins. The phone would restart, and I would try again.
This time it ran for 2 hours without restarting (double the time needed for generating cache twice on my phone). I manually stopped the test and started using it normally.
Lo and behold! It was rock solid stable! No crashes, no matter what I did! Wifi, bluetooth, GPS, games, maps, youtube,... all of the above?!
And it would stay this way for me for about 2 weeks. When the phone starts restarting again, I would run the stress tester for a couple of hours, and it would be stable again.
I have since tried the 20d firmware, which also ran fine. I also flashed 20e yesterday, and so far it has been very smooth. I have tried various amounts of times like 1hr, 3hrs, 10hrs, but it would seem that going longer than 3hrs have no impact on the interval between restarts. So personally I find 2hrs will last me 2weeks or so and that works best for me.
I may not have completely solved the problem, and I still don't understand why it works, but it is sort of working for me.
And I hope it would work for you as well!
So here you go! And thanks for reading this unnecessarily long post!
TL;DR
Summary - I have found that by putting the cpu on load for an extended amount of time will dramatically increase the stability of the problematic phone. Here's something you can try:
Disclaimer: I do not guarantee this will work on your phone. I am no engineer. I take no responsibility if it causes any problem on your phone or if it explodes. That being said, it has worked for me. Please try at your own risk!
1. Make sure the area is well ventilated, the phone has sufficient battery or is charging.
2. Download and run "StabilityTest (ROOT Optional)" from Play Store.
3. Run "CLASSIC STABILITY TEST"
4. Let it run for at least 2 hours. If your phone restarts during the test, try again.
*However I would keep an eye on the temperature. I normal at around 50-60 Celsius.
5. It SHOULD be okay now. Depending on how bad your particular problem is, you may have to repeat this process every week or two. Experiment with different load times and see where your sweet spot is.
Thanks,
cbpneuma

Thanks for writing up your experience and theory. I wonder if the additional stress load is generating a large amount of heat that is curing some type of mechanically related electrical fault like a cold solder joint or marginally loose connection.
Some people bake or freeze their phones once the phone is continuously bootlooping so that they can get it to boot up and stay operational long enough to pull their data off the phone.
LG should take responsibility of their shoddy product and replace all affected serial numbers now without questions or provide a 3 year extended warranty.

Wow
That's great TC.
This is the first real lead that anyone has made ( to my knowledge)
And may be why LG is quiet on the cause of the hardware failures
Similar heading would help red ringed Xbox 360 and yellow light ps3's back in the day

cbpneuma said:
Engineers are probably laughing at me right now. I know it probably makes no sense, but it's the best that I can come up with. So I come to you guys, maybe some may help shed some light on this issue that plagues those of us who are stuck with the problematic phones that are not eligible for exchanges/repairs.
Click to expand...
Click to collapse
Not laughing if anything your patience and dogged determination is inspiring.
Great write up

I have found out something !!!
After 6 months of use of my LG G4 H815 S/N 509 Germany... When I put it over heavy load and let it heat up pretty well ( about 70-80 degrees Celsius ) I used to take the back cover off !!! I smelled it several times through out this period !!! And guess what I used to smell ??? The smell of flux !!! which shouldn't be there... I used to work daily fixing Mobos and PCBs so I know how flux smells like !!! My theory is that there is an excess of flux with the solder on the board and as we know flux helps solder to melt at lower temps, so at certain high temps on the G4, flux is slightly boiling... which is causing these fumes ( no smoke though !!! ) !!! Which could cause either of both:
1. An isolation if flux wastes get between the solder and the PCB !!!
2. If solder is deforming or melting which might cause loose contact between the components and the PCB !!!
How to fix this, it is all about burning the flux away without causing damage to the mobo :
1. Heat the hell out of your LG G4 while it is sitting still on a table !!! ( AND I REPEAT, SITTING STILL !!! NOT MOVING AROUND !!! )
2. The better solution would be to fix it like we fix GPUs !!! And this will burn the flux away so the solution should work...
a. Disassembled your LG G4 and remove your mobo.
b. Turn on your oven and heat it to 200 Degrees Celcsus .
c. Place your mobo on the Aluminium foil stand onto a cooking sheet or Aluminium foil with the EMI shield Up.
d. Once Oven has reached the 200 Degrees Celsius... place it into the Oven and bake it for 7 min.
e. When time up, leave the Oven door opened and the it stand or cool down for at least 60 min. (but I recommend you wait 120 min. to be on the safe side !!! ). Do not touch it or move it or eat it ( LOL, that sounded dirty... ) !!! Be patient.
f. Finally, reassemble your G4 and turn it on !!! It should work fine now !!!
Don't attempt this fix unless you are aware of what you are doing !!! And only if LG refused to fix your precious device !!! Don't attempt to fix it if you lack the required experience and skills !!! Learn how to do things first...
" DISCLAIMER: "
I am not responsible of any damage you cause to your device, yourself, your surroundings... or even your entire god damn country !!! LOL... I am not responsible if you cause a thermonuclear war or get the USA and Russia into war trying to fix your device !!! So please be aware of what you are doing and be careful !!!
BTW I hear a weird sound ( similar to spinning HDD if you ever heard one ) coming from the SoC area on the LG G4 when I put it under heavy load !!! I wonder if it is normal or due to the loose contact which usually causes similar sounds to come out of electronic components !!! Does anyone else hear that ??? Is it normal ???
( btw before you start saying that, I know smartphones don't have HDDs !!! I was just describing the sound !!! )

Just a comment... flux does not actually lower the melting point of solder, but rather helps it to flow better to the metal traces of the components and printed circuit board.
From Wikipedia (https://en.wikipedia.org/wiki/Flux_(metallurgy))
In high-temperature metal joining processes (welding, brazing and soldering), the primary purpose of flux is to prevent oxidation of the base and filler materials. Tin-lead solder (e.g.) attaches very well to copper, but poorly to the various oxides of copper, which form quickly at soldering temperatures. Flux is a substance which is nearly inert at room temperature, but which becomes strongly reducing at elevated temperatures, preventing the formation of metal oxides. Additionally, flux allows solder to flow easily on the working piece rather than forming beads as it would otherwise.
The role of a flux in joining processes is typically dual: dissolving of the oxides on the metal surface, which facilitates wetting by molten metal, and acting as an oxygen barrier by coating the hot surface, preventing its oxidation. In some applications molten flux also serves as a heat transfer medium, facilitating heating of the joint by the soldering tool or molten solder.

cbpneuma said:
First and foremost, I don't promise this will fix anything as it has only worked for myself, but let me share my experience/journey and see if this can help at least another person in the same boat as I am.
If you do not want to read the entire story, feel free to skip to the break below.
Back story:
I got the phone in Hong Kong back in November. ...
Click to expand...
Click to collapse
Very interesting. Keep in mind that almost all of the bootloop problems are fatal - the phones won't boot up unless placed in a freezer, and eventually many of those phones won't boot up at all, even if placed in freezer. And the oven method doesn't provide for a long term fix.
For most of us, once it starts to bootloop, the phone is basically dead.

kwarwick said:
Just a comment... flux does not actually lower the melting point of solder, but rather helps it to flow better to the metal traces of the components and printed circuit board.
From Wikipedia...
In high-temperature metal joining processes (welding, brazing and soldering), the primary purpose of flux is to prevent oxidation of the base and filler materials. Tin-lead solder (e.g.) attaches very well to copper, but poorly to the various oxides of copper, which form quickly at soldering temperatures. Flux is a substance which is nearly inert at room temperature, but which becomes strongly reducing at elevated temperatures, preventing the formation of metal oxides. Additionally, flux allows solder to flow easily on the working piece rather than forming beads as it would otherwise.
The role of a flux in joining processes is typically dual: dissolving of the oxides on the metal surface, which facilitates wetting by molten metal, and acting as an oxygen barrier by coating the hot surface, preventing its oxidation. In some applications molten flux also serves as a heat transfer medium, facilitating heating of the joint by the soldering tool or molten solder.
Click to expand...
Click to collapse
You probably misunderstood me... But it is okay !!!
Flux helps the solder to melt faster ( not lowering the melting point of solder ) cuz it allows better heat transfer... It also helps soder to better stock to the PCB and the terminals of electronic components !!!
Flux with solder works like oil when you want to fry potatoes... It will make them get cooked faster !!! Without oil they will take longer time !!! I hope you get my point....

starfcker69 said:
Very interesting. Keep in mind that almost all of the bootloop problems are fatal - the phones won't boot up unless placed in a freezer, and eventually many of those phones won't boot up at all, even if placed in freezer. And the oven method doesn't provide for a long term fix.
For most of us, once it starts to bootloop, the phone is basically dead.
Click to expand...
Click to collapse
I feel like this more because of the **** implementation of CPU, since I disabled 2 main cores almost 3 or 4 weeks ago my phone is running pretty well and I'm even on a custom ROM.

Adam Myczkowski said:
I feel like this more because of the **** implementation of CPU, since I disabled 2 main cores almost 3 or 4 weeks ago my phone is running pretty well and I'm even on a custom ROM.
Click to expand...
Click to collapse
What was your phone doing before you disabled those two main cores and do you feel any performance decrease with them disabled?

divineBliss said:
What was your phone doing before you disabled those two main cores and do you feel any performance decrease with them disabled?
Click to expand...
Click to collapse
My wasn't completely dead, it was booting up sometimes, rarely but usually in the really low temps, I tried baking the mobo, worked for few hours and phone died, I put thermal pads on all the components what made pressure on them pushing them apart into the processor, phone worked, but again in REALLY low temps if it got up to like 27•C the phone constantly rebooting. ( I was on stock Marshmallow btw ). Then I found this reddit thread about disabling big cores, somehow it worked. Works only on 5.1, just saying. Anyway even though I disabled only 2 cores, the phone have been booting up only on 1 (WTF), what made it really slow and laggy. Fortunately, if you root your device you can enable all 4 cores in device manager. Or if you have H815 with unlocked bootloader as I do, you can flash any AOSP, CM, AOKP etc based ROM, with root and enable all for cores as well, I don't feel that big difference since I'm on pure android really. I already found a bug that disabling 2 cores is causing, on SUPERXE AOSP ROM this is somehow causing lockscreen settings to crash as I am not able to have any screen lock, weird bug... I didn't try any other ROMs.

Is it normal for the N4 to run super hot?

I've had a N4 back around launch and although I recall of hearing people with problems of their N4s getting hot, I haven't noticed anything too bad.
Just got a N4 again recently, and during OS updates (I use CM), the back of the N4 gets so hot it can burn if I hold my finger at a specific spot.
I've heard of some fix a while back involving putting some kind of shim between the CPU and the piece of metal it sits near so it could use that as a heatsink basically; would this really help?

espionage724 said:
I've had a N4 back around launch and although I recall of hearing people with problems of their N4s getting hot, I haven't noticed anything too bad.
Just got a N4 again recently, and during OS updates (I use CM), the back of the N4 gets so hot it can burn if I hold my finger at a specific spot.
I've heard of some fix a while back involving putting some kind of shim between the CPU and the piece of metal it sits near so it could use that as a heatsink basically; would this really help?
Click to expand...
Click to collapse
Hi,
It will get hot when updating OS as after wiping of cache, all the apps are optimised again. During normal usage however it wont, as you'll use a custom kernel with setting a highest possible temperature. I usually leave my phone for a while to cool it down after updates and then use it.
You can put a thermal paste between body and cpu, this will spread heat better. Metal shim is a better conductor but can affect your GPS performance.
This lets your phone run cooler by a few degrees, but is it worth prying open your phone just for this?

espionage724 said:
I've had a N4 back around[......]
Click to expand...
Click to collapse
Yes, it is normal. Its CPU gets hot with medium-high usage, and the dissipation of the phone is not so good.
And Yes, applying a shim of copper with thermal paste as described here improves the situation! I did it some months ago, and I can assure you it still works. Moreover, if you manage to undervolt a bit, you'll notice that you'll not feel the back turning hot ever again! Since I did this, using my phone in 3g while I'm around is not a problem in terms of temperature anymore.

{Possible Fix} Overheat, bootloop issues? this may fix it forever!...

so..
i bought a G4 H812 canadian off Kijiji (our local buy and sell like craigs list kinda thing) $50 no battery stuck in HS-USB 9008.
invested another $22 in a battery from a friend. now total invested into a possible bricked device... $72.. not to bad, a risk yes... but i had luck and confidence!
excellent screen scratch wise but had delamination all around the screen (see pic 1)
so with a half charged new battery, a possible bricked g4, and some previous knowledge and repair skills, i went to work.
tried QPST... nadda. tried LGUP... nadda. tried lg flashtool... guess what.. yup.. nothing... felt like friends repair shop was last left option...
but im a scrooge, and determined
so i took to youtube and google, found out it may have been one of a possible recall phones that had the thermal bootloop issue or emmc failure..
grabbed my custom heatgun and blasted it at 275 for 3min.. 3" away in circle patterns, just like most unbrick guides.. and left it cool for 30min.
put it back together and powered on to find it boot just fine not needing no relfash, had a pattern lock, contacted original owner the seller, got lock off,
wiped personals and internal storage, and found it was on 6.0.1... DAMN... no root possible.
go to downgrade and it doesnt, error's out before can even do anything, i forget, com41 change required...
so go to reboot and it stops booting again, but really warm... overheat issue again...
repeat the process many times trying to get to usable home screen as it would just keep freezing.. so i really examined all the phones parts and noticed... pic2 this really crappy black thermal tape, right where the main emmc and cpu is... kinda silly for such a heat hog i thinks.. so looking at the rf shield on phone where cpu is they also have this really ****ty goldish shield tape that on the reverse side is plasticy feeling.. not good for thermals i think.. so i tore it off, and removed that black thermal tape, cleaned top of cpu, heatgunned again this time at 300 for 2 1/2min. 2.5" away circulars, twice, 30 min cooldowns between.
took a light blue 1mm thick heatpad i found from a ddr3 ram stick heatshield, cut it to shape of cpu, and placed on top, also placed a piece on the slightly smaller black chip to the upper left of cpu, and also on the what i believe to be the power control ic on the opposite side of board, so that all possible sources of higher heat had thermal pads and better conductivity.
placed phone all back together, screwed all screws finger tight, placed sim card and sd and battery, back cover.. and hoped to god.. press power..
boots up nice and quick, hot at first after a factory wipe in recovery, like kinda scary hot at first then slowly cools...
its been running for almost 2 days now.. no slowdowns, no sluggish, does get warm when charging as expected.
but so far, ive been able to use sixaxis controller app, my ps3 controller, moonlight for root, and stream wildlands from my pc for almost 2 hrs,
charge up a bit, play Bully and run 3dmark for a while, and while it does get warm, its not near as bad as it used to be, i think something went right this time
its almost upon its 3rd full day of use without bootloop or overheat, mind u i am also using v4 CTT cpu mod
have xposed installed and root on 5.1 and am happy its still running so far.
so yeah, if this continues to run ill keep updating post when and if something happens to the device..
if it keeps running every two days ill update, and then this may just be a way to self fix the overheat bootloop cpu issues most of us have face i bet!
if you try this, let me know if it works for you.. id be happy to know im not the only one

I'm glad you got it working! Yeah this has been brought up here before on getting it working or putting in the oven etc lol. But it will eventually fail again there's no complete fix sadly. But hope it lasts you long I loved the G4 but the boot loop issues really gave it a bad rap.
Sent from my iPhone using Tapatalk

Will follow this, keep us updated !!

I have done this already and I can assure you it's won't last. Nice work but you are being too optimistic. Without going into too much detail, the problem with the soc will slowly get worse the more you use the phone and putting heatsinks only slows down the rate at which it gets worse and does't stop it altogether. You haven't fixed the underlying issue. That's why it will fail again eventually.

My lg g4 had bootlooped issue too. Everything I did didn't solved the problem . From freezer to oven , and disabling two big core to remaining in only one core the device bootlooped everytime. Now what I did was : First I opened a device , remove the upper golden colour cover enclosing the processor, put some thin paper covering both processor and ram. Then put everything on their respective place. Then I turned a device it booted up. Downgraded to lollipop , disabled the big core using .tot method , rooted my LG G4 and enabled four core using free app by stojshic (Kudos to him: https://forum.xda-developers.com/g4/themes-apps/root-4-cores-activator-t3538175) . The device is working fine since week . I've restarted the device many times to check whether I will get bootloop again, played games like clash of royale for 2 hours etc. The device is working fine with less heating. The main culprit is I guess golden cover shield which is worsening overheating issue . The CPU generates heat and the cover shield is increasing thermal cycle . If by any means a thin better insulator is kept between the CPU and covering shield, this may solve the bootloop problem

georgemb said:
My lg g4 had bootlooped issue too. Everything I did didn't solved the problem . From freezer to oven , and disabling two big core to remaining in only one core the device bootlooped everytime. Now what I did was : First I opened a device , remove the upper golden colour cover enclosing the processor, put some thin paper covering both processor and ram. Then put everything on their respective place. Then I turned a device it booted up. Downgraded to lollipop , disabled the big core using .tot method , rooted my LG G4 and enabled four core using free app by stojshic (Kudos to him: https://forum.xda-developers.com/g4/themes-apps/root-4-cores-activator-t3538175) . The device is working fine since week . I've restarted the device many times to check whether I will get bootloop again, played games like clash of royale for 2 hours etc. The device is working fine with less heating. The main culprit is I guess golden cover shield which is worsening overheating issue . The CPU generates heat and the cover shield is increasing thermal cycle . If by any means a thin better insulator is kept between the CPU and covering shield, this may solve the bootloop problem
Click to expand...
Click to collapse
Yes but the the heat of the phone when your playing games and booting up will still effect the soc to get worse over time, just at a slower rate. Its not a case of "if it does't reach a certain temp it will be fine". It's a case of "the more heat the quicker it will bootloop, the less heat the slower it will take to bootloop" but either way it will get there eventually as the problem gets worse over time.

Any recommendations?
Can anyone recommend a copper heat tape (or something better) that would work to get my phone running again? It's overheating and therefore bootlooping, so I am curious if there is any specific things to look for or stay away from when buying something to fix this, however temporary it may be.

Copper is better conductor of heat .. So it will work as heat sink ..U can put thermal paste in between CPU and copper tape..
Check it out
youtu.be/G3dQdS1b0aw
Try it and report back

tnap1979 said:
so..
i bought a G4 H812 canadian off Kijiji (our local buy and sell like craigs list kinda thing) $50 no battery stuck in HS-USB 9008.
invested another $22 in a battery from a friend. now total invested into a possible bricked device... $72.. not to bad, a risk yes... but i had luck and confidence!
excellent screen scratch wise but had delamination all around the screen (see pic 1)
so with a half charged new battery, a possible bricked g4, and some previous knowledge and repair skills, i went to work.
tried QPST... nadda. tried LGUP... nadda. tried lg flashtool... guess what.. yup.. nothing... felt like friends repair shop was last left option...
but im a scrooge, and determined
so i took to youtube and google, found out it may have been one of a possible recall phones that had the thermal bootloop issue or emmc failure..
grabbed my custom heatgun and blasted it at 275 for 3min.. 3" away in circle patterns, just like most unbrick guides.. and left it cool for 30min.
put it back together and powered on to find it boot just fine not needing no relfash, had a pattern lock, contacted original owner the seller, got lock off,
wiped personals and internal storage, and found it was on 6.0.1... DAMN... no root possible.
go to downgrade and it doesnt, error's out before can even do anything, i forget, com41 change required...
so go to reboot and it stops booting again, but really warm... overheat issue again...
repeat the process many times trying to get to usable home screen as it would just keep freezing.. so i really examined all the phones parts and noticed... pic2 this really crappy black thermal tape, right where the main emmc and cpu is... kinda silly for such a heat hog i thinks.. so looking at the rf shield on phone where cpu is they also have this really ****ty goldish shield tape that on the reverse side is plasticy feeling.. not good for thermals i think.. so i tore it off, and removed that black thermal tape, cleaned top of cpu, heatgunned again this time at 300 for 2 1/2min. 2.5" away circulars, twice, 30 min cooldowns between.
took a light blue 1mm thick heatpad i found from a ddr3 ram stick heatshield, cut it to shape of cpu, and placed on top, also placed a piece on the slightly smaller black chip to the upper left of cpu, and also on the what i believe to be the power control ic on the opposite side of board, so that all possible sources of higher heat had thermal pads and better conductivity.
placed phone all back together, screwed all screws finger tight, placed sim card and sd and battery, back cover.. and hoped to god.. press power..
boots up nice and quick, hot at first after a factory wipe in recovery, like kinda scary hot at first then slowly cools...
its been running for almost 2 days now.. no slowdowns, no sluggish, does get warm when charging as expected.
but so far, ive been able to use sixaxis controller app, my ps3 controller, moonlight for root, and stream wildlands from my pc for almost 2 hrs,
charge up a bit, play Bully and run 3dmark for a while, and while it does get warm, its not near as bad as it used to be, i think something went right this time
its almost upon its 3rd full day of use without bootloop or overheat, mind u i am also using v4 CTT cpu mod
have xposed installed and root on 5.1 and am happy its still running so far.
so yeah, if this continues to run ill keep updating post when and if something happens to the device..
if it keeps running every two days ill update, and then this may just be a way to self fix the overheat bootloop cpu issues most of us have face i bet!
if you try this, let me know if it works for you.. id be happy to know im not the only one
Click to expand...
Click to collapse
Can anyone recommend a copper heat tape (or something better) that would work to get my phone running again? It's overheating and therefore bootlooping, so I am curious if there is any specific things to look for or stay away from when buying something to fix this, however temporary it may be.

@ezzony was right, mine finally took a permanent dump last week after 3 more reheat attempts since last post, but it atleast lasted this long..
now im on a heavily modified Huawei Nova Plus converted from a MLA-L03 to a CAN-L11 software wise, so i could get perfect rooted Lineage OS 13 on it and xposed
i miss the camera of the g4 so much...
i still have my dead board Note 4, note 4 edge also dead board, and lg g4 dead board, all cause of same problems SOC overheats
seems like it was a common problem amongst tons of models too.... sad that we the paying customer get shoddy manufactured devices that we end up paying so much for...

georgemb said:
Copper is better conductor of heat .. So it will work as heat sink ..U can put thermal paste in between CPU and copper tape..
Check it out
youtu.be/G3dQdS1b0aw
Try it and report back
Click to expand...
Click to collapse
Thanks a bunch! That's the exact video I've been watching and the most helpful too. I am just not sure if there are different sizes in thickness that are more conducive or not. Also, are there different strengths of copper to resist higher temperatures? I'm learning all of this through google, so I'm sure I sound as savvy as I am with technology.

tnap1979 said:
@ezzony was right, mine finally took a permanent dump last week after 3 more reheat attempts since last post, but it atleast lasted this long..
now im on a heavily modified Huawei Nova Plus converted from a MLA-L03 to a CAN-L11 software wise, so i could get perfect rooted Lineage OS 13 on it and xposed
i miss the camera of the g4 so much...
i still have my dead board Note 4, note 4 edge also dead board, and lg g4 dead board, all cause of same problems SOC overheats
seems like it was a common problem amongst tons of models too.... sad that we the paying customer get shoddy manufactured devices that we end up paying so much for...
Click to expand...
Click to collapse
Sorry to hear that, but yes I feel every G4 will suffer the same fate as in your case. Once it starts it won't keep running forever.
Yes the camera is awesome. The no.1 reason I love the G4 and no.2 reason is the textured leather curved back cover which makes holding the G4 very easy in the hand to manage, as it is a big phone. I was going to go with the G5 when my G4 died as it has the same camera but I really don't think it's as special as the G4. I picked up a new secondhand G4 with a serial number of 701 so I'm hoping the fault has been resolved in the newer version.
I'm not totally optimistic it wont suffer from the same problem in time though as I do feel it gets very hot that one can feel on the back cover . And the heatsink over the soc is virtually non existent in comparison to a Galaxy S6 I owned briefly which had a much more capable heat sink on it. I'm hoping the heatsink is not the problem and it was purely the chip itself, but I don't know for sure. I stuck a copper shim on the soc with some thermal paste anyway just in case, couldn't hurt.
I'd suggest to anyone who like me loves the G4 then picking up a newer version with a serial number of 701 or above might not be a bad idea instead of messing around with a clearly faulty one that will fail on you possibly at a highly inconvenient moment.

tnap1979 said:
so..
i bought a G4 H812 canadian off Kijiji (our local buy and sell like craigs list kinda thing) $50 no battery stuck in HS-USB 9008.
invested another $22 in a battery from a friend. now total invested into a possible bricked device... $72.. not to bad, a risk yes... but i had luck and confidence!
excellent screen scratch wise but had delamination all around the screen (see pic 1)
so with a half charged new battery, a possible bricked g4, and some previous knowledge and repair skills, i went to work.
tried QPST... nadda. tried LGUP... nadda. tried lg flashtool... guess what.. yup.. nothing... felt like friends repair shop was last left option...
but im a scrooge, and determined
so i took to youtube and google, found out it may have been one of a possible recall phones that had the thermal bootloop issue or emmc failure..
grabbed my custom heatgun and blasted it at 275 for 3min.. 3" away in circle patterns, just like most unbrick guides.. and left it cool for 30min.
put it back together and powered on to find it boot just fine not needing no relfash, had a pattern lock, contacted original owner the seller, got lock off,
wiped personals and internal storage, and found it was on 6.0.1... DAMN... no root possible.
go to downgrade and it doesnt, error's out before can even do anything, i forget, com41 change required...
so go to reboot and it stops booting again, but really warm... overheat issue again...
repeat the process many times trying to get to usable home screen as it would just keep freezing.. so i really examined all the phones parts and noticed... pic2 this really crappy black thermal tape, right where the main emmc and cpu is... kinda silly for such a heat hog i thinks.. so looking at the rf shield on phone where cpu is they also have this really ****ty goldish shield tape that on the reverse side is plasticy feeling.. not good for thermals i think.. so i tore it off, and removed that black thermal tape, cleaned top of cpu, heatgunned again this time at 300 for 2 1/2min. 2.5" away circulars, twice, 30 min cooldowns between.
took a light blue 1mm thick heatpad i found from a ddr3 ram stick heatshield, cut it to shape of cpu, and placed on top, also placed a piece on the slightly smaller black chip to the upper left of cpu, and also on the what i believe to be the power control ic on the opposite side of board, so that all possible sources of higher heat had thermal pads and better conductivity.
placed phone all back together, screwed all screws finger tight, placed sim card and sd and battery, back cover.. and hoped to god.. press power..
boots up nice and quick, hot at first after a factory wipe in recovery, like kinda scary hot at first then slowly cools...
its been running for almost 2 days now.. no slowdowns, no sluggish, does get warm when charging as expected.
but so far, ive been able to use sixaxis controller app, my ps3 controller, moonlight for root, and stream wildlands from my pc for almost 2 hrs,
charge up a bit, play Bully and run 3dmark for a while, and while it does get warm, its not near as bad as it used to be, i think something went right this time
its almost upon its 3rd full day of use without bootloop or overheat, mind u i am also using v4 CTT cpu mod
have xposed installed and root on 5.1 and am happy its still running so far.
so yeah, if this continues to run ill keep updating post when and if something happens to the device..
if it keeps running every two days ill update, and then this may just be a way to self fix the overheat bootloop cpu issues most of us have face i bet!
if you try this, let me know if it works for you.. id be happy to know im not the only one
Click to expand...
Click to collapse
It has been six months, does your lg g4 still working?