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Something really weird happened to my O2 mini s. I just saw all the LED lights flash and then the phone vibrated and went blank. I did a soft reset it restart but then the same thing happened. I did a hard reset it was all ok, then when the O2 software began installing it did the same. Flashed all LEDs including the flash led vibrated and went blank. I though it was the battery. Changed the battery and it would refuse to wake up, just switch on all LEDs and keep vibrating. This kept happening for several times, and then suddenly all was ok. Re-installed an all, all is fine now. But I wonder what happened? And will it happen again? Any explanation by anyone would help. Thanks in advance.
This sounds like a hardware fault to me.
Can you think of ANY outside influences? Things like extreme temperature exposure, exposure to high humidity, or very fast changes of temperature or humidity could all cause shorts or low resistance conditions. I don't know that any of these historically lead to the type of fault you experienced specifically in Wizards, but from an electronics standpoint, anything of this nature could cause bizarre but temporary faults. Even dropping it could cause you problems of an unusual nature.
If the answer to any of the above (except dropping) was yes, do this:
Gather up all the desiccant you can find. This stuff can be found in bags of jerky, and in just about any electronics box ever packed. Sometimes I find little "jars" of desiccant in medicine bottles (long-acting antacids, in particular). Put the phone in a plastic zip-top bag in a warm, dry place with all of the desiccant inside and seal it up tight. Leave it for at least 12 hours, but 24 would be better. Throw away the desiccant when you're done.
If you can't come up with an outside cause for the fault, you may just have to chalk it up to the age of these phones. They are far from new. Even if you just bought yours, chances are good that it is refurbished, and electronics, like fruit, will go bad eventually.
Thought so...
Thanks for your detailed reply. I think the temperature would be the reason. I am in India and that too in the Southern part and its been awfully hot these last few days (40 deg. C or more) yesterday I was in my room and had switched on the air conditioning, the phone was near the ac for a while. Then I did switch off the ac, probably this fluctuation caused to form moisture? It was behaving weird but its ok for the time being... for the last 12 hrs or so. I am waiting for 3G services in India before I decide on my new phone, so I hope this lasts for another 6 months. Hope! Thanks again, will try your method if this happens again.
The problem is back and won't go away. Should I bury my phone? Or is there hope? Any help would be appreciated. Thanks in advance.
If dessication didn't work, you can also try swapping batteries with someone (best to do this while the problem is presenting itself).
You can also try doing a hard reset as a last resort (remember to backup your PIM info!), but I doubt this will do you any good. However, it doesn't cost you anything, and is therefore worth a try.
See if your service carrier offers insurance on your phone. If they do, sign up, and turn it in a week later for replacement. Just remember to wipe out your personal data and remove any HardSPL/Unlocks you might have done.
If insurance fraud is distasteful to you, hit eBay. You can usually score a decent condition Wizard for around $120 USD.
I haven't really tried dessication, but I think its gone beyond that. Batteris I have 3 and none of them worked. Is it easy to open the phone and try and "air" it? Will that help. Unfortunately carriers in this country don't have insurance plans. So that leaves out that last option. And if I have to buy another phone then why... the same one... ;-) Thanks anyways..
Hi, I've now used the Nuxus One for a few days and I'm pretty happy with it and all it's fancy fetures.
The phone works flawlessly and the only minor issue I'm willing to report is the fact that when the phone is lying on the table the touchscreen doesn't respond as quickly as it does when holding it in hand..
I've also noticed that if you touch the shell of the phone with a finger while trying to use the touchscreen, everything goes back to normal.
Is it a flaw only present in mine or is it an issue that involves the capacitive touch screen of the Nexus?
Video Proof
This is the video I've taken with my other phone so it would me much clearer what I mean..
The quality is not great but I hope it will be explicative enough..
http://www.youtube.com/watch?v=hXPpyGwuSzM
mine work correctly, try it on another table
I've tried it on different surfaces but the result it's the same..
Problem is that it doesn't always do it, so it's difficult to judge if a surface works better than an other.
I've called HTC support and together with them I've done some tests, like letting another person use it the same way, but nothing changes.
I've also done a hard reset and nothing has changed so I think I will have to send it in hoping they will fix it..
I envy you in the US where you can just ask for a replacement...
Is it possible that your fingers are real dry and or you are working in a dry low humidity environment?
rotohammer said:
Is it possible that your fingers are real dry and or you are working in a dry low humidity environment?
Click to expand...
Click to collapse
Hi,
I don't think so, since I've now tried it in different environments and by different people...
This is very weired..and annoying..
I've had my Nexus One for over a month, but I recall having the same issue one day early on.
Similarly, I've had days where I can't operate the touchpad on my notebook computer because my fingers were dried out from handling solvents.
I have an associate that has a similar issue when the phone is in a leather holster case. She has to take the phone out on occasion to operate it, most while driving.
havent had any issues. Call them for a replacement
I think I will do so!
The problem is minor but sometimes can be a real nuisance..
Looks like screen isn't grounded properly.
Yes, I think so too. It must be something electrical. When I keep it in hand or touch it, the static electricity must not influence it, but it does so if I try using it lying on its own.
I've taken another video changing the surface on which I use it on..
Take a look: http://www.youtube.com/watch?v=iZ-nS_h5Pqs
I'm glad to see you're still investigating. Because the problem is so repeatable, and the fact that its not a common complaint, I'd conclude theres a something wrong with your phone.
One thing I'd try is to remove the battery for 8hrs (overnight) and see if that make a difference. I've worked with a lot of electronic devices that behave badly after receiving a static discharge. Sometimes leaving it sit without power helps the static dissipate.
But the fact that it works while on the laptop would indicate a poor ground from the touchscreen circuit to the chassis of the phone, as the proximity of the laptop changes the capacitance of the internal circuit enough to overcome the lack of effect that the chassis alone needs to provide.
hehe I have to investigate to be sure this is a bug relative to my device so that when I will send it in for repair they will have to find a way to solve it and not just pretend it doesn't exist...
try pressing with all skin and not with your nail. It needs heat to work.
htcmagic said:
It needs heat to work.
Click to expand...
Click to collapse
No, it doesn't. To prove it, hold a metal spoon and slide it across your screen. Mine works.
this was a common problem on the G1 and the way the capacitive screen was designed. In order for it to be functioning completely, HTC told users that he needed to have it in his hand or at least a finger or two touching the phone. HTC said that it simulated a circuit (the hand on the phone made a complete circuit while just touching it left the circuit incomplete) I have noticed the same thing on the N1... it works great in my hand on if i am touching the sides with a finger and scrolling or using it, but if i just lay it down and try to scroll/touch with 1 finger it becomes much less responsive, the same way the G1 would.
i will see if i can find the exact thread over in the G1 forums where all this is posted.
It makes sense, but then, why others work? mmm...
Batas said:
It makes sense, but then, why others work? mmm...
Click to expand...
Click to collapse
The only thing I found while googling is that you need some humidity in the air for it to work effectively. I'm really not sure if that applies to this specific design though.
I've never had an issue with using the screen on a table, so this is probably isolated, I'd give htc a call and ask for repairs.
Edit: I just tried for the hell of it doing the pinky touch on the frame, and the soft buttons became much more responsive. Hmm
I saw another thread about the phone getting hot but couldnt find it.. so im making another thread
When i play certain games the phone gets very hot near the top left.. both sides.
When i take the cover off the back i can smell something.. its not a burning smell.. iv never smelt something like this before.. its like a really.. really weird liquorice smell.
Iv downloaded some temperature apps but none of them give the correct reading.
The game i was running is "Dungeon Hunter".. i even ran an old snake game (the ones from old nokia phones) and even then it got really hot. Though most of the games i play on it the phone doesnt get hot.. just warm-ish
So i was just wondering what temperature app should i use and does your phone get really hot/ weird smell coming from it?
Thanks!
ps: even though the phone is cool now i can still smell it
mine2gets reli hot, even the footy game crashes
Im really thinking of sending this phone back now.
The smell i get off of it is not normal at all.
I get scared of the phone overheating/ burning when playing games etc..
and again.. after 1hour the phone still smells the same..
My phone got pretty warm when I played some zombie hunter and browsed the internet. After an hour the area around the lense and the screen were very warm. Though I wouldn't say they were uncomfortable to use because of it.
As for smell, apart from the new phone/plastic smel, I didn't notice anything.
My advice: if you notice weird behaviour you think can be traced back to heat, give it back. Otherwise, trust the built in safety stuff.
Sent from my GT-I9100 using XDA App
were you charging the phone at the time? cuz mine gets hot when playing games with it being plugged in. there was once when the temperature shot up to 50 degree C which quickly went back to normal range after unplugging the phone.
sckc23 said:
were you charging the phone at the time? cuz mine gets hot when playing games with it being plugged in. there was once when the temperature shot up to 50 degree C which quickly went back to normal range after unplugging the phone.
Click to expand...
Click to collapse
I wasnt charging my phone at the time.
also the battery is fine it doesnt get hot at all.. its just the top left of the phone.. where the CPU is?
Does any one have or know of an app that shows the correct temperature of the phone/ CPU?
bump
again.. any one know of an app that gives an accurate reading of the CPU temperature?
My phone got pretty hot earlier, I was playing angry birds whilst plugged in, the screen was getting very hot, the top in particular.
I use a hard-ish gel case. The one with the kick stand
It's normal for phones (especially thin ones, where the back is plastic) to get hot during heavy CPU intensive use. This is very common when charging also. As a general rule of thumb, it should never exceed a heat you can't hold. So if you are finding it really too hot to hold or uncomfortable I would definitely take it back. Otherwise, as long as it doesn't exceed 40/50 degrees, it's likely ok.
However no phone should be smelling like that! I suppose a new plastic smell might occur if it's brand new, but certainly not as you describe.
PS: Just a thought... do you have a case on it? Often, a plastic / gel case can make the phone a lot hotter and I suppose that could also be the source of the smell?
its normal to get hot whilst charging tho, i guess the phone has safty measures if it gets too hot.
Maybe its more of software fix for games rather than hardware problem, just like my pc graphics card that used to get very hot and force a restart but once a software update (firmware) came out and installed it was fine.
The CPU is probably specced for like 80C, heat shouldnt be a problem unless you place in 40C sunlight or something.
The smell is of course another matter.
I didnt have any case on it.
Iv returned the phone for now and i might wait for the iphone5
Don't get me wrong.. i love the phone but it shouldnt be getting that hot/ smell coming from it when hot.
Who knows.. i might rebuy the phone later.. but as of right now my mind is set on waiting for the iphone5.
Thanks for your help anyway =)
Did you ever smell SGS1?
If you did, is it same kind of smell or not?
It smells too really weird if you take the back cover off, really not a big issue I think.
I have the same problem when I played the Pro evolution soccer. After 3 minutes, the zone of the virtual direction pad was very very hot. I think it's a problem when we push hardly on a very thin screen multitouch like GS2. It's really a serious problem. Anybody can verify? I think this should be a sticky topic!!!!!!!!!!!
Sent from my GT-I9100 using XDA Premium App
hakkinenvthh said:
I have the same problem when I played the Pro evolution soccer. After 3 minutes, the zone of the virtual direction pad was very very hot. I think it's a problem when we push hardly on a very thin screen multitouch like GS2. It's really a serious problem. Anybody can verify? I think this should be a sticky topic!!!!!!!!!!!
Sent from my GT-I9100 using XDA Premium App
Click to expand...
Click to collapse
Was it the top end of the phone? If so then that's where the CPU is, so its got nothing to do with a thin multitouch screen. That area is bound to get hotter than the rest of the phone.
Problem is that everyone got their own definition of "hot". I mean, even my computer monitor is "hot" at the top and bottom while its cold at the center (backlighting heat it up). It doesnt hurt its function the slightest. Electronics do this, plain and simple.
I find it very hard to believe that Samsung could have missed heat dissipation issues, unless they never tested their own phone for a single minute.
murklor said:
Was it the top end of the phone? If so then that's where the CPU is, so its got nothing to do with a thin multitouch screen. That area is bound to get hotter than the rest of the phone.
Problem is that everyone got their own definition of "hot". I mean, even my computer monitor is "hot" at the top and bottom while its cold at the center (backlighting heat it up). It doesnt hurt its function the slightest. Electronics do this, plain and simple.
I find it very hard to believe that Samsung could have missed heat dissipation issues, unless they never tested their own phone for a single minute.
Click to expand...
Click to collapse
Yes, it was the top left end on my phone. I quitted the game as soon as I realized that the phone was burning really really hot, in 20 minutes before I have to turn it off. I can't imagine a phone can be "hot" like that, it's unacceptable. Try the game Pro evolution soccer and you'll see. I'll try some more games to verify
The phone feels hot (well hotter then you would expect) when I am playing game, browsing webs or charging it. I am a little bit concerned but decided to keep the phone which is such a powerful mean machine and too good for me to let go.
I hope they do honour the two years manufacture's warranty if the phone does melt in the future.
hello1122 said:
The phone feels hot (well hotter then you would expect) when I am playing game, browsing webs or charging it. I am a little bit concerned but decided to keep the phone which is such a powerful mean machine and too good for me to let go.
I hope they do honour the two years manufacture's warranty if the phone does melt in the future.
Click to expand...
Click to collapse
I haven't any problems when charging it, browsing web or playing some light games, but try to play an "extreme" game like Pro evolution soccer and you'll see
hello1122 said:
I hope they do honour the two years manufacture's warranty if the phone does melt in the future.
Click to expand...
Click to collapse
If you use a custom rom or root your phone it will void your warranty so you will be left with a very nice £500 melted slab.
Problem is that everyone got their own definition of "hot". I mean, even my computer monitor is "hot" at the top and bottom while its cold at the center (backlighting heat it up). It doesnt hurt its function the slightest. Electronics do this, plain and simple
Click to expand...
Click to collapse
I understand that electronics get hot but atleast a screen has air vents and because its much bigger it can spread the heat around the product.
Did you ever smell SGS1?
If you did, is it same kind of smell or not?
It smells too really weird if you take the back cover off, really not a big issue I think
Click to expand...
Click to collapse
I never owned the SGS1 but at first when i bought the SGS2 i did smell it every now and then when it was warm but it didnt smell of nothing.. though when it got really hot it started to smell.
its amazing how ive played with my phone to death the last 3 days and never got hot. Maybe a little warm but nothing uncomfortable. Maybe the first batch had some defects or something but mine is running perfectly. Only problem I am having is all these damn warning signs that popup.
I've noticed that the device is pretty hot. I'm not sure, which is why I want to verify this with you.
I've used the "Battery Indicator" app which shows that the temp is 34-37 Celsius.
Does that seem about right?
Thank you
yep that's perfectly normal : )
drm111 said:
yep that's perfectly normal : )
Click to expand...
Click to collapse
Really? Cause it always feels hot in my hand....
Could it be that I'm just hot (cause the weather here is hot as well)?
What would be too hot ( I mean what temperature ).
I've had the phone restart itself twice yesterday after getting too hot (don't know the temp it was at though)
matanc1 said:
Really? Cause it always feels hot in my hand....
Could it be that I'm just hot (cause the weather here is hot as well)?
What would be too hot ( I mean what temperature ).
I've had the phone restart itself twice yesterday after getting too hot (don't know the temp it was at though)
Click to expand...
Click to collapse
34-37c is absolutely normal. Its quite cold where I am atm, and the battery is 37c.
You've also no idea that the phone restarted due to heat. I've gone through 5 replacements now for various reasons, and they all got pretty warm under use. However one of them got stupidly hot, so hot you couldn't even hold onto it without hurting your hand. Thats why I got that one replaced.
And yes, if the ambient temperature is hot, it'll make the phone feel hotter aswell.
None of my GSII's have ever restarted on their own though. Could've been due to an app/widget though.
There has been 2-3 threads on this, one of which I created myself.
It's normal for the device to get quite hot, especially around the camera at the back and the screen near the top of the phone when gaming or watching videos over wifi. It shouldn't get so hot it can't be held though. It also doesn't help if you have a case on the phone, especially a thick gel-type one. I'm currently looking for a thin perforated cover, like the official Samsung one, but unlike that one with protection for the top and the bottom of the device. I suspect these holes will help with heat dissipation.
The phone has inbuilt safety for overheating I believe, although mine has never gotten hot enough to activate it. The phone will shut down if it thinks any more heat will lead to damage.
Pagnell said:
There has been 2-3 threads on this, one of which I created myself.
It's normal for the device to get quite hot, especially around the camera at the back and the screen near the top of the phone when gaming or watching videos over wifi. It shouldn't get so hot it can't be held though. It also doesn't help if you have a case on the phone, especially a thick gel-type one. I'm currently looking for a thin perforated cover, like the official Samsung one, but unlike that one with protection for the top and the bottom of the device. I suspect these holes will help with heat dissipation.
The phone has inbuilt safety for overheating I believe, although mine has never gotten hot enough to activate it. The phone will shut down if it thinks any more heat will lead to damage.
Click to expand...
Click to collapse
Thanks!
Was just about to ask about the case, since I bought a black gel one.
So do any of you know of a case that won't affect the heat ( a lot )?
I am honestly afraid to walk with the device without a case so that I don't break the screen (or scratch it) or break the phone in half (it looks so delicate!)
Like I said, the perforated covers look the best for preventing heat build up, although the official Samsung case doesn't protect the top or bottom corners, which perversely are the most likely parts to be damaged if the phone is dropped. I'd like to get hold of a cover that looks like that but with all round protection.
But, is it also "normal" that the phone gets incredibly hot when you play music with headphones on?
I seem to have experienced all the issues everybody went through (except for the shutdown) but nobody ever mentioned music (i am talking about 3 minutes playback not hours!)
Anybody with the same issue?
Take the back case off and smell near the top left of the phone..
When mine got hot a weird smell came from it.
It's probably worth checking with something like osmonitor that you haven't got a stuck task.
A few times mine has got really hot and it was a process using 96% cpu...
Most recently it was SocialHub which I don't even use! Had to reboot the phone to stop it as it wouldn't die.
I also had extremal heating in that area while playing angrybirds and after I move app from SDcard to internal memory - All comes OK. So I suppose it is because your apps ar data (music etc) located on SD and some of them due to speed limits heats during work. (it is in addition to WiFi and other network activity). Cause when I plug SD into comp by adapter and perform long file framsfer it also heats
So is this thing hotter than the original Galaxy S? I can live with the phone at that temp, but any higher is questionable.
It will shut down if it gets to hot. And I guess it takes quite a bit because a few months ago on engadget.com I saw some video of an iPhone a palm phone and I think a nexus one on a grill to see which one will either break or shut down first. And after like a minute on a grill it finally shut off. So I wouldn't worry about it unless its so hot u can't hold it. Once with my evo I was using 4g GPS Bluetooth. And charging the phone and it got up to around 115° (around 46° in celcius) and was fine. I shut it down tho when I noticed it got that high tho haha
Sent from my PC36100 using XDA Premium App
Mine (running XWKE7) went to 50 c when gaming "we rule" in game hub with charger plugged in. No external SD installed though.
Also keep in mind that fatter phones have more space to dissipate the heat. This phone is thin thin. That heat has to go somewhere! That's why I want a case that vents
Sent from my mobile phone using Tapatalk
Only charging... No more words to say...
Swyped from my overclocked GT-I9100 using XDA Premium App
I think my phone is sometimes very hot.But after I have ROM KE7 I think is better.
Sent from my GT-I9100 using XDA App
as soon as I start playing "real football 11" i can essentially cook an egg on the phone. Other games are fine though
Could it be due to the installation of overclocking apps? Didn't notice it was this hot during my first few days of usage.
In the first few days after I got my SGS II the phone went really very hot every time I charged it or when I played a game or even when I watched a movie.
Since I use Lite'ning Rom and banned some system apps the problem vanished.
So for me it seems to be a software-sided problem.
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.
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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. ...
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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.
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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.
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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.
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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?
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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.