Develop Bugs

[Q] Extreme battery drain (CM7)

No idea what happened here, but my partner's myTouch Slide is eating the hell out of its battery.
Two days ago I updated the phone from CM7 nightly #41 to CM7.0.3 Stable. The day I performed the update, she noticed her phone started complaining about low battery levels. This was only after about seven hours off the charger, with extremely light use.
A quick look at the Battery usage menu showed Display at the very top with 80% of usage... but it had only been on for a whopping seventeen minutes. The phone was sitting idle almost the entire day.
I have tried everything possible--full wipes, installing several different ROMs, restoring to complete stock--the display continues to drain the living hell out of the battery. I know screens take a lot of power, but this is ridiculous. Before this started happening, her phone could easily go two days before needing to be charged.
I'm starting to think the problem is hardware-related and there's some damage to the phone. It's had some minor water damage in the past--a partially-cracked window allowed some rain to get on it, enough to cause the phone to shut down and refuse to turn back on until after a night in a bowl of rice. She isn't exactly gentle with her phone... (if we're forced to buy a new one, I will make her be gentler... lol)
Any ideas? Anyone else have this problem?

Update: It appears as if the phone isn't going to sleep. It was taken off the charger an hour ago and has been in a pocket with the screen off for the whole time, and the battery usage screen is showing the phone was awake the entire time.

I had similar problems in the past with a previously owned G1 and later with an EVO 4G. I'm not sure exactly what caused it but what fixed it for me was flashing a different kernel. Although I wouldn't sudgest you do this it might turn out a bit problematic.
Sent from my T-Mobile myTouch 3G Slide using XDA App

I tried flashing a different kernel and the problem wasn't resolved. Unfortunately it looks as if the problem is hardware-related and the phone needed to be replaced.

Oh. Well sorry I couldn't help you body. I think I'm having a hardware-related problem as well with my current phone (MT3GS) it seems to be having problems with the network when I try making calls it reboots. I flashed cm7 and it didn't reboot anymore but now when I attempt to make calls it doesn't make or receive them. I think ima need to have it replaced as well.
Sent from my T-Mobile myTouch 3G Slide using XDA App

Battery Drain
I have a mytouch 3g slide with android 2.2.1. The battery only last 4h 35m. it all started when i updated all the apps (including the android market). Reset my phone downloaded no apps but updated the market still the battery drained. i uninstall latest android market and battery last for 1d 9h 45m 15s. I believe that did the work.

Wow that's some very large text!!!

jimczyz said:
Wow that's some very large text!!!
Click to expand...
Click to collapse
Maybe he got some vision issues?

Car charging problem plus first random reboot

The phone has been absolutely rock solid since the day I bought it and I love it. Today however I was using Google Navigation with Bluetooth connected to a headset so I could hear navigation prompts and phone calls. The phone was plugged into a generic Motorola microUSB car charger that I've always used for tons of phones.
The sun was out and hitting the back of the phone so the battery app I had was reporting battery temp at 45 and above.
Anyway even though the phone shows the charging icon and says its charging it doesn't seem to receiving enough juice to charge the phone? The battery kept dropping and I can't tell if this was because the phone was so hot that it stopped charging the battery like my Incredible used to do or if I just need a more powerful car charger.
Then on my second leg of the trip the phone rebooted mid navigation. Started back up and has been working fine.
Anyone have any ideas or seen something similar?
Sent from my Galaxy Nexus using xda premium

Was listening to Bluetooth music and browsing a site and boom hard freeze and had to pull battery to get it to start. Only thing today is I installed nytimes. I'm going to try uninstalling it since I remember having issues with the app on G2X. Let's hope.
Sent from my Galaxy Nexus using xda premium

I've had random reboots, but I'm not at all sure what's causing them.
Also, the lockscreen will occasionally become unresponsive, but it seems to fix itself if I leave it for a while.
I guess we just have to hope for a fix in an upcoming patch.

mobilehavoc said:
The phone has been absolutely rock solid since the day I bought it and I love it. Today however I was using Google Navigation with Bluetooth connected to a headset so I could hear navigation prompts and phone calls. The phone was plugged into a generic Motorola microUSB car charger that I've always used for tons of phones.
The sun was out and hitting the back of the phone so the battery app I had was reporting battery temp at 45 and above.
Anyway even though the phone shows the charging icon and says its charging it doesn't seem to receiving enough juice to charge the phone? The battery kept dropping and I can't tell if this was because the phone was so hot that it stopped charging the battery like my Incredible used to do or if I just need a more powerful car charger.
Then on my second leg of the trip the phone rebooted mid navigation. Started back up and has been working fine.
Anyone have any ideas or seen something similar?
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Its common to run hot when using gps. Reboot was probably because battery too hot. Your phone did the right thing. Cool off period.
Sent from my Galaxy Nexus using xda premium

depending on the car charger & phone use, you'll get insufficient juice to keep the battery charging. i'm assuming your moto charger is a 'rapid charger', if not.. then i would suggest trying one out.
this one is pretty decent: Motorola P513 Rapid Car Charger
if that doesn't cut it then the next step would be to use a power inverter(what i use).. only down side is they are a bit bulky & can be noisey to.. but will ensure your phone gets charged up no matter what(gps use, torrent download, etc)

Thanks I ordered the Motorola charger. It was only 5 bucks on Amazon Prime. I hope that works otherwise its inverter time
Sent from my Galaxy Nexus using xda premium

My N1 used to get nuclear hot when using navigation. Doesn't surprise me.
Sent from my Galaxy Nexus using Tapatalk

[hfm] said:
My N1 used to get nuclear hot when using navigation. Doesn't surprise me.
Click to expand...
Click to collapse
That's bit a OTT, it got hot but not Nuclear.
I'm finding the GN gets hot just from using it with games/browsing.
The hot spots are on the back at the top, next to camera
Sent from my Galaxy Nexus using xda premium

I agree, the GN does get warm often. I'm trying to get used to it. My NS never got warm.
Sent from my Galaxy Nexus using Tapatalk

i'm having constant reboots. this happened to the first GNex i had. it eventually wouldn't come back on. i even waited a good 12hrs and tested it again and it still wouldn't come back on. returned it and now the people i returned it to are telling me that it's fully functional, and now i have a new one that's acting the same. i guess it's going to die too and then i'll have two lemons on my hand. thanks a lot, Google/Samsung.

I've just had my first two random reboots today. Phone updated with the volume fix ota yesterday morning.
It reboots and then gets stuck at the android updating screen.
Don't know if it is a coincidence that this has started after the bug fix.

This morning I look at my phone to see that it has not only rebooted but the default, first-time welcome message is waiting asking me to log on using my gmail account, etc.
In other words my phone got wiped over night and I don't know why. I did install some phone tracking apps yesterday but removed most of them except for PhoneLocator which I ended up paying for.
So I've spent a few hours restoring things the way they were and right before I got to work the phone did a reboot but fortunately did not do a factory reset as it did before.
I am kind of worried now, I really hope this will not happen again.
Any thoughts? Similar experiences?

I had this "problem" with my Desire. In car, connected to a charger than I know works. Phone not charging.
Basically, as mentioned, the battery will stop charging when it reaches a certain temperature. And the OP mentioned it was a hot day. Plus being on the other side of the glass amplifies the suns heat.
Also a "good" charger is specifically one that has an output of 1A. I and others have found that charger with an output of 850mA and less definitely won't cut it for GPS duties.
The reboots... may be heat. May be something else. Does it only happen when the phone is hot?
Sent from my Galaxy Nexus using xda premium

just so you know you are not alone - i'm having the same problem with the galaxy nexus i got yesterday. it was constantly rebooting, also showing the "upgrading Android" dialog at startup.
this continued after factory reset and no additional applications installed.
i returned it, waiting for one from the next batch.

mobilehavoc said:
Was listening to Bluetooth music and browsing a site and boom hard freeze and had to pull battery to get it to start. Only thing today is I installed nytimes. I'm going to try uninstalling it since I remember having issues with the app on G2X. Let's hope.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Some of us have the GN crash on us while listening to music. There is a thread on it here: http://forum.xda-developers.com/showthread.php?t=1379600

Got my GN Thursday morning. Since then I've had 3 Reboots.
First was actually a full power off while streaming music via Subsonic, plugged into a car charger about 10 hours after getting the phone.
Second was after viewing some flash enabled websites, so not too surprised there (reboot).
Third was just after installing and setting up Google Wallet about 45 minutes ago (reboot).
Wow years of lurking and apparently that was my fist post.

GNex Reboots and Freezes
I am in the process of exchanging my GNex replaced by Samsing. Within 48 hours after getting it in the mail (no rooting or anything, just stock) I was getting random reboots, apps crashing, black screen (unable to wake) requiring battery oull. By the next day it was just continuous soft reboots (starting at the boot animation, not the "Google" screen).
Called Google who transferred me to Samsung who said they need to repair and not replace the device quoting 7-10 days. I called Google back and they said Samsung should have offered to replace the device and the Google rep called Samsung back and got them to replace the device (apparently there's a 14-day window that the device can be replaced).
It was a Friday morning and I was told someone from another Samsung department would contact me within one business day to arrange shipping the replacement and getting my credit card details for the advance replacement. On Monday I still hadn't heard from anyone so I tweeted at @samsungsupport with my ticket number saying i was still waiting and received a call within minutes from a Samsung rep arranging the shipping of the replacement. May be a coincidence, not sure.
At this point, I was quoted Wednesday for a total of 5 days without a phone, unless it takes longer. Unfortunately I only recently switched to a GSM carrier and don't have a spare SIM card phone so the delay is inconvenient. Hoping for a better experience with the replacement device and I wish there could have been a next-day replacement strategy for DOA units.
Good luck everyone.

You need a minimum of 1 amp for the car charger, most chargers only provide 750 mA. Also check the charging method, some of the cheap chargers will not trigger AC mode (Will show as usb charging) and in those cases, you are only getting 500 mA, if this is the case, you might be able to trick things by shorting out the two data pins on the USB cable.
I picked up an iPad car charger, the older ones are 1 amp, the newer ones are 2.1 amps. Toss out the crappy proprietary cable and put in a standard micro usb. Plenty of juice for this thirsty phone.

Phone Overheating & Won't Switch On

I'm a bit worried about my phone overheating when it's not being used. This has happened twice in the last 3 days. It was on my desk, not been used for a while then when I pick it up it's red hot. I hadn't been using the phone recently and the only things I use are phone/sms/internet, no games or anything. It was so hot that I thought I better switch it off. However, after powering off the red light stayed on and the phone continued to get hotter even though it was off. I tried to switch it back on but it wouldn't power on.
Eventually it switched back on, cooled down and all seemed well until it happened again just now. This time I was charging the phone while on, I left it for an hour or so, went back to it and realised it was red hot again and the same thing happened.
The only things that have been different since the problem started are that I flashed the OTA update for the latest ViperX rom (stock kernel) and I've put it in a different case, an official HTC case with a hard back and leather front flap. Could either of these be causing this? I've searched the ViperX thread and although others have mentioned the phone getting hot it's always been when they were playing games. Mine just heats up on its own while not in use
Does anyone have any ideas? I'm really worried the phone will overheat without me realising and fry itself to a crisp or something
Edit: I forgot to mention, I installed SmartStay Ex recently as well, could this cause overheating?

I’m on Viper 2.1.0 too, and don’t play games. Mine never gets hot while browsing, youtube, streaming music etc..The only time it gets a little warm is when navigating (google maps) + BT streaming + charging at the same time. If yours is getting hot for no reason then I suspect there is a rouge app or something else is forcing your phone to run at full speed all the time. Install CPU spy and check how your CPU behaves. Most of the time should be spent in deep sleep while rest at 640MHz or lower speeds. It shouldn't be spending that much time in 500/1400Mhz mode if you are not running CPU/Graphics intensive apps. You can also check battery stats and see which apps are using most of the battery.

eggshaped said:
I'm a bit worried about my phone overheating when it's not being used. This has happened twice in the last 3 days. It was on my desk, not been used for a while then when I pick it up it's red hot. I hadn't been using the phone recently and the only things I use are phone/sms/internet, no games or anything. It was so hot that I thought I better switch it off. However, after powering off the red light stayed on and the phone continued to get hotter even though it was off. I tried to switch it back on but it wouldn't power on.
Eventually it switched back on, cooled down and all seemed well until it happened again just now. This time I was charging the phone while on, I left it for an hour or so, went back to it and realised it was red hot again and the same thing happened.
The only things that have been different since the problem started are that I flashed the OTA update for the latest ViperX rom (stock kernel) and I've put it in a different case, an official HTC case with a hard back and leather front flap. Could either of these be causing this? I've searched the ViperX thread and although others have mentioned the phone getting hot it's always been when they were playing games. Mine just heats up on its own while not in use
Does anyone have any ideas? I'm really worried the phone will overheat without me realising and fry itself to a crisp or something
Edit: I forgot to mention, I installed SmartStay Ex recently as well, could this cause overheating?
Click to expand...
Click to collapse
do a factory reset, probably some bad app that is running in the background like crazy. disable smartstay and see if that changes anything
Sent from my HTC One X using Tapatalk 2

Thanks Phoenix and KLUVJ, I think you were right about it being an app. I uninstalled Smartstay as that was the only thing I've installed in the last couple of weeks and so far everything seems fine. It's not even warm
If it happens again I'll get the CPU app Phoenix mentioned and look into it more closely, but I've got a feeling it must have been Smartstay.
Thanks for your advice, very much appreciated

Impressions & Questions

I've had this phone for a little over three days now. Overall, I absolutely love it. The only smartphones I've ever owned were the Evo lines, so this was a big leap for me, and I'm not sorry. However, there are a few issues with it.
First is a strange antenna issue. I have the Sprint version of the Optimus G, updated and rooted. When the network mode is set to LTE/CDMA, the 3G antenna will only turn on very rarely, leaving me entirely without internet access. I was about to return in when I realized that the issue is solved when I change it to CDMA only. We don't have LTE in my area, so I don't mind leaving my LTE antenna off. I'm not sure if it's an issue with my phone alone, or if it's a software issue that others have.
Then there's the screen. The screen itself is BEAUTIFUL, and I have no issues with it. But the screen scratches like crazy! I am extremely careful with my phones, and this one in particular. I kinda bought it on impulse, so I didn't have time to order a screen protector for it (one should be in tomorrow though). So I have been treating it with extra, almost paranoid caution. It's only ever been in my pocket while at work (nice khakis, so nothing harsh), and otherwise it's been undisturbed on a table. I check my pocket for any abrasive lint often since there's no screen protector on it. But the screen has developed about a dozen or so scratches, and one of them deep enough to distort the screen when it's on. I don't know how this is happening (the deep one happened in the space of five minutes, inbetween two texts, and was merely put into and removed from my pocket.)
Also, the battery life is kinda crappy. I live near a tower, so always have full signal. At work I'm on wifi, so that's not an issue. The battery scarcely lasts through work, with VERY light usage, and is nearly dead by the time I get home. Today, from the time I woke up with it at 100% to the time I got to work (about 2 hours, with constant near-full signal), the phone dropped from 100% to 76%.
Are these normal issues, or am I the only one experiencing them? I want to love this phone so much, but these seem like serious flaws to me.

I too had to change to CDMA so dont know what is wrong with that. And the scratches is weird ive dropped mine a few times and dropped my keys on the screen and nothing. And my battery is phenomenal. Seems like you have a dud.
Sent from my LG-LS970 using xda premium

In regards to the screen....this may sound like a stupid question and I don't mean to offend, but did you remove the temp screen protector that it comes with? I've not had one issue with my screen being scratched and I can't say I've been all that good to it for the last week.

I've had the phone for a full week now and I have not experienced 3G drops with LTE/CDMA mode enabled. Also haven't scratched it either (thankfully). I constantly put it in and out of my jean pocket throughout the day, so I don't really understand how yours got to be that way.
As far as battery life, I too don't see the issues you're having. Typically I pull it off the charger at around 7AM and can easily get 12 hrs+ with normal usage. Even with Android OS taking up the bulk of my battery (seems to be awake a lot). Lot's of people saying its a battery drain bug, etc. etc. etc...but if I'm getting 12 hrs easily, and 24 hrs with light usage, I don't have a problem with that.
-Screen brightness at 60%
-Wifi on all the time (connected at home and at work - probably helps, lol)
-2 Gmail accounts pushed constantly, Facebook messenger, and a few other apps that auto-update on schedule (news readers n stuff)
-My commutes to and from work - I listen/watch podcasts and/or read. Which means the screen is on the entire time (approx a 1hr commute). All said, my screen-on time sits at around 3 hrs for me.
I'll post some screenshots in a minute...

Here
Sent from my LG-LS970 using Tapatalk 2

No scratches or weird battery issues here. My first two days the battery life was horrid. Afterwards I did some update and poof like magic.
Anyone have any info on the boot loader unlock initiative? I miss aosp

got this phone for sprint yesterday after having a BB for 5 years .. and i'm loving the beautiful screen,.
Only hiccups is maybe the battery... Yesteday i had it full on 100% then after 2 hours went down to 80%..
I'm currently in the office charging the phone to 100% will remove it and do normal routine on it and see how long it last.

JSchoey said:
In regards to the screen....this may sound like a stupid question and I don't mean to offend, but did you remove the temp screen protector that it comes with? I've not had one issue with my screen being scratched and I can't say I've been all that good to it for the last week.
Click to expand...
Click to collapse
Haha, I actually checked for this before posting. It is absolutely something I'd do.
After reading these and other comments about the phone, I realized I probably had a dud. I went to the Sprint store a couple days ago and swapped it out for a new one, and it's running beautifully, with none of these issues. So I guess I just got a faulty one. Thanks all for responding!

Smyc151 said:
Haha, I actually checked for this before posting. It is absolutely something I'd do.
After reading these and other comments about the phone, I realized I probably had a dud. I went to the Sprint store a couple days ago and swapped it out for a new one, and it's running beautifully, with none of these issues. So I guess I just got a faulty one. Thanks all for responding!
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Click to collapse
Good to hear! Sorry, I had to ask...my girlfriend had the same problem with her phone she got a couple months ago and it was because the temporary screen protector was still on the phone!

Anyone finding it gets kinda hot? I've read some owners complaining about this and it was mentioned in some review somewhere. Wondering how widespread it might be. Might be that people keep all 4 cores running 24/7. I don't see the point if you're web surfing, talking, texting. I keep it on Eco Mode most the time.

I've only notice it get warm once or twice, but even then it was barely noticeable. But I've had eco mode on since I got the phone, and it's not hesitated or stuttered once.
Sent from my LG-LS970 using xda app

We are thinking of switching to Sprint, so we went to Best Buy and picked up one of these phones and I'm very impressed with it so far.
Actually this is the second one because the first one had a factory defect in the chrome around the screen. It get home with the 2nd one and notice there is a speck of dust under the glass.
I'm going to return this one in a day or two and see if the third one is a charm. If not, I'm not getting a forth one!
Any suggestions on a different phone for Sprint if this one doesn't work out? To me the only other phone to get would be the Note 2 and then the GS3.

A little help here guys. I was planning to return mine because of battery problem. Like i tried playing Dead Trigger, current battery is 54%, 30 brightness, sync and data is off. I played for good 5 minutes and it dropped to 48%. One more test is after it got 100% full charged, i unplugged it, Wifi is on still 30% and not using it for a couple of minutes it dropped to 97% and im not even using it!
So i want to return it.
The question is:
Do i have to pay for replacement? I got mine at BestBuy for 99$ almost a month ago.
2nd is will still they accept it now it got scratch on four sides. Any suggestion?

iibishop said:
A little help here guys. I was planning to return mine because of battery problem. Like i tried playing Dead Trigger, current battery is 54%, 30 brightness, sync and data is off. I played for good 5 minutes and it dropped to 48%. One more test is after it got 100% full charged, i unplugged it, Wifi is on still 30% and not using it for a couple of minutes it dropped to 97% and im not even using it!
So i want to return it.
The question is:
Do i have to pay for replacement? I got mine at BestBuy for 99$ almost a month ago.
2nd is will still they accept it now it got scratch on four sides. Any suggestion?
Click to expand...
Click to collapse
As long as it hasn't been over 30 days and the phone doesn't look "abused" then you should be fine, also if it's been under 30 days i would add geeksquad protection especially if you plan on rooting, i thought it was a bad investment at first, then when talking to a tech after my evo4g bricked he just said to "make sure the device doesn't power on" and they will replace it needless to say i took a ballpeen hammer too it and got a shiny new one 2 days later.

I took the LG back and got the GS3. I've already had to clear the cache on the galaxy because of excessive battery drain.
If the GS3 fails me, I'm gonna try the Note 2.
Sent from my SPH-L710 using xda app-developers app

Yep, on eco mode the battery is outstanding. The phones is faster than my wifes S3 on eco mode, and I get nearly 2 days without charging. I had the note II for a week and that is just as good but was too big for me. This phone impresses me everyday.
Sent from my Nexus 7 using xda app-developers app

Serious over heating issue

So ive had my Tmobile G4 for about 3 weeks now. Ive been using the G series since it started. I love the G4 but wow ive never had a phone with this type of heating issue.
There is not a time when the phone js not at least warm to touch. Few times a day it gets to the point where its too hot to touch at all. Forget about making a phone call way to hot to lut against face.
Im not doing muxh of anything either. Web browse etc... But its hot at idle screen off just sitting there.
Anyone have issues with heating? Multiple times its given me the over heating message and shuts off phone.
Last night for example it got to 80c.... Thats fricken hot!
Could factory reset help it? I dont know what to do at this point? Am i just having to get a replacement? As i type this from my g4 sensors showing high 60 to low 70C.
The heat is generating from the top half of the phone btw. Like at the camera it feels like.
Any suggestions or help? Thanks

Syntax323 said:
So ive had my Tmobile G4 for about 3 weeks now. Ive been using the G series since it started. I love the G4 but wow ive never had a phone with this type of heating issue.
There is not a time when the phone js not at least warm to touch. Few times a day it gets to the point where its too hot to touch at all. Forget about making a phone call way to hot to lut against face.
Im not doing muxh of anything either. Web browse etc... But its hot at idle screen off just sitting there.
Anyone have issues with heating? Multiple times its given me the over heating message and shuts off phone.
Last night for example it got to 80c.... Thats fricken hot!
Could factory reset help it? I dont know what to do at this point? Am i just having to get a replacement? As i type this from my g4 sensors showing high 60 to low 70C.
The heat is generating from the top half of the phone btw. Like at the camera it feels like.
Any suggestions or help? Thanks
Click to expand...
Click to collapse
Is the battery draining abnormally fast? Check the usage for play service, could need that fix

If you live in a hot area like me, such as LA, then you probably experienced phone shutting down while using phone as a GPS due to the overheat.
I've never Had that problems with all of my previous phones but I'd give few software updates for optimization.
Sent from my LG-H811 using XDA Free mobile app

Yeah battery is draibing very fasy. I use a battery monitor and nothing is sucking it up.
Also, i live in Arizona where it has been 110 degrees daily. Though it hasnt shut down from heat outside or when using gps yet.
It shut down with over heat warning last night in my apartment where its 67 degrees in here while i was on google.com just browsing. So im clueless right now.
I just cleared cache partition and booted to safe mode to see if it runs any better.
I can leave my phone on my table for an hour and pick it up and itll still be scorching hot doing nothing. Its literally never not hot to touch.

Yeah. That's the mytmobile app... Unchecked all the boxes in the settings. Helped me
Sent from my LG-H811 using Tapatalk

My 1st Tmobile G4 Online Preorder had some problems mostly screen. I sent it back. I went to the store and bought one. That one was always hot as well. It was always throwing warnings at me. I had Gmaps on in my car with the AC on and only 70F out the time and it shut down on me. I called Tmobile and did some master reset etc and still was the same. I finally just went back to the store and told them to exchange it after they seen how hot it got in store. Tired to tell me I was at 15days when I went back in but I called in a few days before and asked what day was the 14th Monday or Tuesday I guess they count Purchase day as day 1 and that's what I thought but the person I talked to said no but they called Manager and they honored it. This phone finally seems to be good a few little issue's but they should get worked out soon with software we all hope. The 1st 2 phone's I had the Update Pushed to my phone the 3rd one was already on the phone so might be newer batch ? I was not happy spending over $600 on the phone with the issue's I had on those til this 3rd one which is good so far.

Syntax323 said:
I can leave my phone on my table for an hour and pick it up and itll still be scorching hot doing nothing. Its literally never not hot to touch.
Click to expand...
Click to collapse
Then I'd say that even when it's doing nothing, it's still actually doing something, maybe just something it shouldn't be doing.
My Verizon G4 ran warm, and I was disappointed with the battery life. Different monitoring tools were unable to point me to what app (?) was causing the problem. Sometimes it would stay cooler after a reboot. Mine was never just constantly hot, however. Mine would be cool sometimes when sitting around, and then sometimes warm. Like taking it off the charger in the mornings, some days it would be cool, others it would be warm (~95F or so), when it had been just sitting there with the screen off.

Just now for example. After i replied here i out my phone on my table. I just now picked it up and it was 74 C. Scorching. Like its just gonna melt ibro a pile of G4 goo lol.
I guess ill call my store on Monday. Safe mode and clearing cache partition didnt help at all.

Syntax323 said:
Just now for example. After i replied here i out my phone on my table. I just now picked it up and it was 74 C. Scorching. Like its just gonna melt ibro a pile of G4 goo lol.
I guess ill call my store on Monday. Safe mode and clearing cache partition didnt help at all.
Click to expand...
Click to collapse
Are you using a case with it? I recently had overheating issues and figured out that the leather wallet case I was using was causing my G4 leather to overheat. It went as high as 112°5F But as soon as removed it it went back to normal.
Sent from my LG-H811 using XDA Free mobile app

jjdevega said:
Are you using a case with it? I recently had overheating issues and figured out that the leather wallet case I was using was causing my G4 leather to overheat. It went as high as 112°5F But as soon as removed it it went back to normal.
Sent from my LG-H811 using XDA Free mobile app
Click to expand...
Click to collapse
Nah I have the black version normal backing not the leather version. I have the thin Tech21 case but i took it off a week ago to see if this helps.
As im typing this my phone is at 75C which is 167 degrees F! So hot!
Possible a Facorty reset could help? I really dont have many apps installed right now either. Since its relatively new ive been slowly installing apps. I started blank, didnt install anything from backups etc. The apps i do have installed are pretty basic. Nothing syncing or running. Ive been clear the recents aswell just to try. Frustrating

Have you tried turning off WiFi? I've noticed occasionally that my phone will constantly drop WiFi on my home router and reconnect a few seconds later, repeating this until I restart the router. All of that constant disconnecting and reconnecting makes it pretty hot...
Sent from my LG-H811 using Tapatalk

All latest smartphones heat up
Sent from my SM-G920T

Supersanborn said:
Have you tried turning off WiFi? I've noticed occasionally that my phone will constantly drop WiFi on my home router and reconnect a few seconds later, repeating this until I restart the router. All of that constant disconnecting and reconnecting makes it pretty hot...
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Yeah its happening regardless. I turn data off when im on wifi and my wifi never loses connection, it stays constant. Though i did try a few days ago using no data or wifi and same dral, just hot.

Have you tried a factory reset? I leave my wifi on and stream music and everything. The only time it gets warm is when I Fast Charge. But I mostly wirelessly charge so its still cool.
Maybe you should exchange it.

I'm second on that doing factory reset. Seems like you have a corrupted profile or rogue app, or both.
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What sensors are you referring to? With wich app? That's fundamental

I were having over heating problems on my G4. It were so hot at one point that my 6 year old daughter picked it up to play a game on it. The phone was that hot my daughter actually started crying cause the phone burnt her hand. This is not good. I have an awful lot of applications on my handset, over 300 so before I contacted LG I did a LG backup and reset. I restored probably half the apps what I had and a week after I haven't had a problem and the phone seems to be running as it should. The phone isn't even warm.
My theory is the G4 has 64bit processors. The snapdragon 810 processors were known for over heating and the G4 uses the snapdragon 808 processors for this reason. The 64bit processors deal with twice the data at the same time to the old 32bit processors and this contributes to them getting too hot. I feel that a few tweaks by developers and updates from LG is what's needed to combat the over heating. Time is our friend here and a bit of common sense. When you install a new app and overheating occurs then just remove the problem app. I always see how the app affects the handset now for over heating problems.
The 64bit processors in the G4 are new and need to have some updates to combat the overheating I feel. I recommend a system restore, debloating and only using the apps what you need.
I remember when pc's went from 32bit to 64bit processors. There were processors burning out, melting, water cooling became popular and bigger fans to combat the over heating. In time it sorted itself out so I feel this is the case for the G4 and other new handsets running 64bit processors.
Hope this helps.

Did anyone try unchecking the boxes in the my T-Mobile app? My phone went from 50% to %5 in less than 30 mins running crazy hot. You could also try uninstalling the app updates, or using the debloater tool on xda to disable it.
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Same here, although not so hot that it "burns". iPhone 6 got warm but never so hot - software improvements should help combat this over time. +1 on the debloat tool.
One may argue the dead air via removable back cover can act as an insulator vs a compact design. Maybe just get an Otterbox/Thick case so you can't notice the heat as much? Could possibly lower battery lifespan though.

I've had my AT&T G4 for a little over a week. The first couple days the battery life was horrendous so I did a factory reset. The battery life improved greatly however that's when I noticed the top half of my screen getting unbearably hot. Another factory reset didn't solve the issue. So I talked with an AT&T Rep and am taking mine in for a replacement now. Hopefully will resolve this issue. Will update.