Develop Bugs

[Q] different volume bug, same thing or broken phone

have i got the volume bug if my phone hangs and then reboots every time i touch volume up or down when the screen is on? Samsung insist that its the same thing and i need to wait for the update but i can't see anyone else describing that the problem causes a reboot, and my volume has never actually turned down on it's own as far as i can tell.

That sounds different altogether.
Sent from my Galaxy Nexus using XDA App

matt2053 said:
That sounds different altogether.
Sent from my Galaxy Nexus using XDA App
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Thats what i suspect. Its just a pain to have been waiting for 4 days for something that probably wont fix anything and then to have to start the whole thing over again with samsung. O well

stanleywinston said:
have i got the volume bug if my phone hangs and then reboots every time i touch volume up or down when the screen is on? Samsung insist that its the same thing and i need to wait for the update but i can't see anyone else describing that the problem causes a reboot, and my volume has never actually turned down on it's own as far as i can tell.
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Deal with the retailer you bought the phone from, and get a replacement from them.

oscillik said:
Deal with the retailer you bought the phone from, and get a replacement from them.
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I'll give it a go. Im guessing they wont do a doorstep swap like i'd get from t mobile though. Hopefully i wont be without it for long. In our short time together i've grown quite attached to this phone (and almost got used to not touching the volume button)

Couple of questions (you may have already done these -apologies if you have)
Have you tried a factory reset? If not, maybe worth trying it, could be an app doing wierd things.
Also, try running a logcat trace when replicating the issue - see if it helps point in the direction of the issue.
Does the phone still crash when you're in the bootloader? (This _may_ help to rule out application related issues)

I have tried a factory reset. Weird thing is that im pretty sure that it didnt do it for the first few hours that i was playing with it. It was just at the point that i had it all set up that i first noticed it so assumed it was a rouge app and did a factory reset. When it rebooted i signed in and hit volume and it crashed so its definately not an app.
I almost believed that it was the normal volume bug because if i go somewhere more remote in the house, away from all electrical stuff, i can hammer at the buttons for a while before it crashes so maybe ive just got a more extreme version of the bug. Just noone else seems to have anything close. Volume control works fine in a call and when the screen is off but i havent tried in bootloader yet. I'll give it a go

Phantom Soft Key Issue

I wanted to get the opinion of the devs who make all of the ROMS for this device. Below is my experience and my theory:
I have had the phantom soft key issue on every incarnation of the GSII software. I un rooted and went all the way back to the beginning. I used each rom version till the issue occurred, then I let the phone update to the next ROM version and repeated the process. Every single un rooted update had the same issue and then every single Rooted ROM all ROMS for the ET4G were tried and the issue occurred.
Strange part is it came out of nowhere. I have had and have been flashing for an entire year without issue and one day all of a sudden... BOOM. I don't think it is as simple as the signal issue. I think it has to do with flashing as well. Unless this is happening to someone who has never rooted their device, I think something in the roms we flash trigger the issue which is related to signal.
Has anyone known anyone who has never rooted their device and has had the issue? By the way, the store gave me a brand new factory OEM screen and the issue still occurs.

Gorguts said:
I wanted to get the opinion of the devs who make all of the ROMS for this device. Below is my experience and my theory:
I have had the phantom soft key issue on every incarnation of the GSII software. I un rooted and went all the way back to the beginning. I used each rom version till the issue occurred, then I let the phone update to the next ROM version and repeated the process. Every single un rooted update had the same issue and then every single Rooted ROM all ROMS for the ET4G were tried and the issue occurred.
Strange part is it came out of nowhere. I have had and have been flashing for an entire year without issue and one day all of a sudden... BOOM. I don't think it is as simple as the signal issue. I think it has to do with flashing as well. Unless this is happening to someone who has never rooted their device, I think something in the roms we flash trigger the issue which is related to signal.
Has anyone known anyone who has never rooted their device and has had the issue? By the way, the store gave me a brand new factory OEM screen and the issue still occurs.
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I had the issue straight out of the box when we still had gingerbread. I hardly get it anymore besides on occasion
Sent from my SPH-D710 using Tapatalk 2

Elw00d said:
I had the issue straight out of the box when we still had gingerbread. I hardly get it anymore besides on occasion
Sent from my SPH-D710 using Tapatalk 2
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Right outta the box before rooting it?

I personally think its hardware related with, either over time the screen moving and the heating up of the device causing phantom button presses... this only recently started happening to me and after i wipe screen with cloth while its turned off it goes away. for awhile... idk haha

I disabled the hardware capacitive keys and use the software on screen buttons. Problem solved
Sent from my SPH-D710 using xda premium

As said above, I had this issue on Gingerbread..out the box, no root. It'd press menu by itself lol, always gave me WTF moments. I'm on ICS now, and no problems at all.

Crazy, ok. Well I got the answers I was looking for. Thank you everyone for your info. Note 2, here I come.

Yup, happens here too. Menu key goes nuts when charging.

FYI just cause you want to get a developers opinion does not give you permission to ask a question in the development section.

Papa Smurf151 said:
FYI just cause you want to get a developers opinion does not give you permission to ask a question in the development section.
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I will begin chastising myself at once....

Gorguts said:
I will begin chastising myself at once....
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Picture please ^^^^^^^^^
I have this issue on out of box uprooted and other sget4g were okay for some time after rooting and flashing custom made roms... They too fell prey to the mysterious phantom presses... Ahhh the horror.
My fix was....... To
I have had this issue several months and now have a good solution. Use this info posted by elijahbrown on Page 464 in PA thread I believe. http://forum.xda-developers.com/showthread.php?p=34125394
" Disables menu key!
Ooookay..
Go to system/usr/keylayout
Select sec_touchkey. kl and edit as text. You'll see key 217 is search. Delete that line of code or put a "#" in front of it to turn it into a comment. Save the file.
Re boot and let meet know.
Just curious as to why you want to do this so bad? "
# comment out menu and search keys. Save file and Set permissions.
Then head over to the play store and get Button Savior. I paid for the advanced features and am very happy. Have to keep the phone until may 2013, sprint claims liquid damage so no replacement.
Button Savior on screen hidden pop up menu buttons works great and no more phantom presses menu or search pop ups ever again! 

Random sluggish performance that requires reboot?

Hello everyone. I've been experiencing a problem lately that has me scratching my head. The phone for no reason and at random times because super sluggish like the frame rate or something is super low.. It seems to be most apparent in the launcher.. It happens at random even if the phone is cool or hot. Happens on touchwiz launcher as well as nova launcher.. Clearing ram and open apps doesn't work... The only thing that makes the phone go back to normal is a reboot. This also happens on any custom ROM. With stock or custom kernel.. So.is this a CPU hardware problem? Has anyone else had this happen? It's already been happening quite often and its becoming annoying. Factory resets don't solve it either as it comes back randomly. If anyone can shed some light please do.
Sent from my GT-I9505 using xda app-developers app

pezlomd said:
Hello everyone. I've been experiencing a problem lately that has me scratching my head. The phone for no reason and at random times because super sluggish like the frame rate or something is super low.. It seems to be most apparent in the launcher.. It happens at random even if the phone is cool or hot. Happens on touchwiz launcher as well as nova launcher.. Clearing ram and open apps doesn't work... The only thing that makes the phone go back to normal is a reboot. This also happens on any custom ROM. With stock or custom kernel.. So.is this a CPU hardware problem? Has anyone else had this happen? It's already been happening quite often and its becoming annoying. Factory resets don't solve it either as it comes back randomly. If anyone can shed some light please do.
Sent from my GT-I9505 using xda app-developers app
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I would contact T-Mobile it could be a phone problem if you are seing it after an Odin back to stock. That would be my only suggestion is an Odin back but since you already did that I would see about getting the phone switched out
Sent from my GT-I9505G using Tapatalk 4

byron1985 said:
I would contact T-Mobile it could be a phone problem if you are seing it after an Odin back to stock. That would be my only suggestion is an Odin back but since you already did that I would see about getting the phone switched out
Sent from my GT-I9505G using Tapatalk 4
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How could I prove to them that this is worthy of a warranty replacement? I can't seem to reproduce the problem.. It just happens..I thought Odin would solve the problem too but then it just randomly happened
Sent from my GT-I9505 using xda app-developers app

pezlomd said:
How could I prove to them that this is worthy of a warranty replacement? I can't seem to reproduce the problem.. It just happens..I thought Odin would solve the problem too but then it just randomly happened
Sent from my GT-I9505 using xda app-developers app
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Explain to tmobile what's happening and let them know you want a new device. they are very easy to work with and tmobile won't make you prove anything. Ive been with tmobile for ten years now. Trust me they are easy to work with if you explain the situation and let them know it clearly interferes with your ability to use the device as it should be used. You should have ZERO problems with returning the device. By the way sounds like your device DOES have serious problems so id call tmobile as soon as possible. They MIGHT try trouble shooting it FIRST as this is procedure they HAVE to follow simply let them know after trouble shooting that your issue IS STILL PRESENT and they will exchange your device for a new one without issue...so call them asap. You won't have any trouble. You will see. They are very EASY to work with so NO WORRIES. Call and get your device exchanged NOW. Hope this helps you out. I've had a LOT of expirence working with tmobile. It won't be a problem. Youll see. Best wishes to you and hope you get this matter resolved today.

realsis said:
Explain to tmobile what's happening and let them know you want a new device. they are very easy to work with and tmobile won't make you prove anything. Ive been with tmobile for ten years now. Trust me they are easy to work with if you explain the situation and let them know it clearly interferes with your ability to use the device as it should be used. You should have ZERO problems with returning the device. By the way sounds like your device DOES have serious problems so id call tmobile as soon as possible. They MIGHT try trouble shooting it FIRST as this is procedure they HAVE to follow simply let them know after trouble shooting that your issue IS STILL PRESENT and they will exchange your device for a new one without issue...so call them asap. You won't have any trouble. You will see. They are very EASY to work with so NO WORRIES. Call and get your device exchanged NOW. Hope this helps you out. I've had a LOT of expirence working with tmobile. It won't be a problem. Youll see. Best wishes to you and hope you get this matter resolved today.
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I'll have to agree here. I've had many issues over the years (anyone remember the LG G2X?), and they will stand by you. Sometimes you have to squawk loudly, but they want you to be happy...
Unlike Sprint.....I hate Sprint
Edit: If you're not happy with their response, just escalate it to Customer retention...they have the real power.

I had bad lag when I was trying to text, send an email, or anything involving using the keyboard. I flashed a ROM thinking that would take care of the issue . It didnt, still had hang ups and lag. I flashed back to stock and received a new phone and havent had an issue yet.

LG G4 Touch Screen issues. Ghost Touches?

I've been able to replicate this issue on my G4 (815T Australian model) on a daily basis, just on the instagram app though.
I recorded a video of it. Slowmo part shows the issue
https://goo.gl/photos/F823e125PQckCPLp6
The screen seems confused and it just scrolls the other way even if my thumb wasn't touching the screen.
Factory data reset did not fix anything.
Are you able to replicate this LG G4 owners?

I don't use Instagram, so can't help with that app, sorry.
But if you go into Developer Options, and turn on "Show touch data", it might help add some more info to the discussion. It will show a trace on the screen of what the phone's touchscreen interpreted from your last tap/swipe.
It would presumably show a swipe up, and then back down, when you're getting these ghost touches that change the scroll direction. But perhaps it could also help show if swipes are interpreted the same way in other apps. It might help you learn a little more about what the phone is seeing, at least.

Thanks for the video and everything but why a new thread? Plenty of videos on the main thread.
Is another thread really necessary?
Sent from my LG-H811 using Tapatalk

Might be, because this only happens with IG. I've got the exact same problem, only with IG and its very annoying.

shook187 said:
Thanks for the video and everything but why a new thread? Plenty of videos on the main thread.
Is another thread really necessary?
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Apologies, first time I posted it I was thinking it was just Instagram-specific.

KL643 said:
Might be, because this only happens with IG. I've got the exact same problem, only with IG and its very annoying.
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Ahh good to know I'm not alone on this!

chobie said:
Apologies, first time I posted it I was thinking it was just Instagram-specific.
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To me it looks like it is IG specific because I don't have this problem with any other app

You can try to change the touch feedback time from short to medium under settings/accessibility/motor & cogination. This will reduce the touch feedback time. Give it a try, and see if it gets better.
Sent from my iPad using Tapatalk

alanchai said:
You can try to change the touch feedback time from short to medium under settings/accessibility/motor & cogination. This will reduce the touch feedback time. Give it a try, and see if it gets better.
Sent from my iPad using Tapatalk
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Done that but it doesn't solve this problem.

chobie said:
I've been able to replicate this issue on my G4 (815T Australian model) on a daily basis, just on the instagram app though.
I recorded a video of it. Slowmo part shows the issue
https://goo.gl/photos/F823e125PQckCPLp6
The screen seems confused and it just scrolls the other way even if my thumb wasn't touching the screen.
Factory data reset did not fix anything.
Are you able to replicate this LG G4 owners?
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Question, do you have Google keyboard installed? Because I just removed Google keyboard and installed SwiftKey and it looks like the problem is gone....

KL643 said:
Question, do you have Google keyboard installed? Because I just removed Google keyboard and installed SwiftKey and it looks like the problem is gone....
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Nope, I use Swiftkey from the beginning. Only LG stock keyboard is installed.

Mm, I've got LG keyboard freezed with TB and after changing from Google keyboard to SK, the problem is gone

KL643 said:
Mm, I've got LG keyboard freezed with TB and after changing from Google keyboard to SK, the problem is gone
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Interesting. Not keen on rooting though. =\
So you reckon it's just a software issue?

chobie said:
Interesting. Not keen on rooting though. =\
So you reckon it's just a software issue?
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Well this problem is only related to the LG G4 and IG for me...I don't have any other touchscreen problems with this phone. So for me I guess this is not hardware related. During the day I just had 2 small "ghost touches", way better than before. Will see how it goes the next few days...
Edit :
after a view days, it looks like it didn't solve this issue. Today I notice the ghost touches were there again in IG

Force GPU rendening under Developer options somewhat helped.
The new v10f on my Australian G4 didn't fix the issue as well.

Any updates on this? I had same issue. N this is a replacement unit after 2.5 weeks of waiting
Just day one and this ghost touch come up.

I also have this problem
Did you solve the problem?

I am facing similar issue.between...i am not using ig.

I've had this issue as well (not just IG) and sent the phone back for servicing. It was sent back to me with a report showing that they'd done a few things but the problem is still there. I'd been thinking I'd send it back in once more and ask them to have another look. I'm getting ghost touches everywhere and quite a bit, it's very annoying.
Someone mentioned there was another, large thread about this issue but I can't seem to find it, can anyone point me to it?

Hi, I posted this in a new thread yesterday as I couldn't find anything. Never thought to search for 'ghost taps' duh.
Every now and then when just doing normal things on the my phone it totally freaks out and all by it self it suddenly starts to tap random parts of the desktop, slides the pages, opens apps, closes apps, goes into calculator and a bunch of buttons are pressed randomly. It's almost like someone has hacked my phone and is trolling me by just tapping randomly on the phone.
Just today when looking at Facebook it closed the app, scrolled down notifications, data was turned off and wifi turned on.
I thought it might have been my screeen protector, bit of moisture in it or something. Took that off and still does it. Took out the battery for a minute and still does it.
It happened a few months ago then nothing for ages and now it's started again this weekend.
Thought it might have been only when connected to data but has now done it when offline.
Any one got a solution? Does a custom rom fix?

screen far too sensitive?

New member here, first post.
I had my g4 several weeks ago (uk version). Great phone, however recently the screen seems far too sensitive. Sometimes apps or other features are activating on their own without me pressing on them.
I looked in the settings but havent found a way to resolve this. Can anyone offer any suggestions?

Just to clarify a bit more about my issue.
Its like the "floating touch" some phones have, where i can be an inch or two away from the screen but it still activates. More rarely, it seems as if it was activating by sensing light or movement. Strange. Is the g4 supposed to have this type of function?

pholmes38 said:
Just to clarify a bit more about my issue.
Its like the "floating touch" some phones have, where i can be an inch or two away from the screen but it still activates. More rarely, it seems as if it was activating by sensing light or movement. Strange. Is the g4 supposed to have this type of function?
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That sounds like a problem. The G4 is actually known for lacking sensitivity and yours is doing the opposite. enable this settings to see if it is actually detecting ghost touches.
Settings, About Phone, Software Info and tap on 'Buidld number' 7 times. Then go back to settings and tap Developer options, enable 'Show Touches'
if the dots show without your intervention, then it's likely due to faulty touchscreen.
Anyways, do a factory reset and see if it helped.

GUGUITOMTG4 said:
That sounds like a problem. The G4 is actually known for lacking sensitivity and yours is doing the opposite. enable this settings to see if it is actually detecting ghost touches.
Settings, About Phone, Software Info and tap on 'Buidld number' 7 times. Then go back to settings and tap Developer options, enable 'Show Touches'
if the dots show without your intervention, then it's likely due to faulty touchscreen.
Anyways, do a factory reset and see if it helped.
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Thank you. I will give that a try,
As it happens intermittently, i cant say how quick i will find out if that is the solution, but you have been helpful.
:good:

I remember seeing a sensitivity setting somewhere..

Outta said:
I remember seeing a sensitivity setting somewhere..
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Its under Accessibility

pholmes38 said:
Thank you. I will give that a try,
As it happens intermittently, i cant say how quick i will find out if that is the solution, but you have been helpful.
:good:
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Does reset solve the issue? , happening on mine right now. Appreciate your feedback. Thanks

Same here, on Imperium and Stock rom, I have the phone since 6 months and it is a really random issue... my bootloader is unlock so I don't know if I can send it to warranty.
For information I have enable the touch "tracing" in developper menu, and when the issue occurred it's getting me perfect vertical line from bottom to top screen, and open a lot of apps..

leclampin said:
Same here, on Imperium and Stock rom, I have the phone since 6 months and it is a really random issue... my bootloader is unlock so I don't know if I can send it to warranty.
For information I have enable the touch "tracing" in developper menu, and when the issue occurred it's getting me perfect vertical line from bottom to top screen, and open a lot of apps..
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And from the sound of it... Yours pretty much ****ed, at least to my knowledge. Hardware screwed and no warranty. Just bought mine like 3 weeks ago, and hated it so much. So much hyped, but the experienced is so far ****ty at best.
I suspect mine hardware issue. This seems like it's gonna be the first, and the last LG for me. Even mine with warranty still intact. Blackberry used to give this feeling long ago with their ****ty storm. Now, LG and blackberry can share that same ****ed up grave.

As madgibbon indicates, I was on Accessibility / Motricity / Response time (my phone is in french so i'm not sure if it will be exactly like that on yours) and I have set to "Long".
Since that, the issue is no longer appear, I have also switch to rom V20F (Turkey) with still the same setting for accessibility, and I don't have the issue anymore.
I don't know if it is a hardware issue, my phone falls maybe 4 times but with a case and from a little height, no broken glass or something else.
This is all the things I tried before that ;
Using flipcover (QI charge and quick circle), I have tested the "normal" case but same issue
I had a glass protection, I have removed it and cleaned my screen, same issue
I have done lot of hard reset (i'm kind of full wipe addict), same issue
Only the solution of madgibbon works fortunately, thanks mate
I'm also a bit disappointed by this phone, it is great sure I mean fluid, great camera etc... but I have some little issue that ruin the experience unfortunately (this issue with touchscreen, i'm experiencing issue with my Chromecast too that i don't have with other phones, some heating, I don't find the battery usage so good since MM, can't relock bootloader since now). I don't blame LG because i'm using some of their products and I'm / was really satisfied with : Optimus 2x, Nexus 5, TV, Monitor, Sound Bar. Anyway, waiting for 2016's Nexus and I will see if I switch or not.

leclampin said:
As madgibbon indicates, I was on Accessibility / Motricity / Response time (my phone is in french so i'm not sure if it will be exactly like that on yours) and I have set to "Long".
Since that, the issue is no longer appear, I have also switch to rom V20F (Turkey) with still the same setting for accessibility, and I don't have the issue anymore.
I don't know if it is a hardware issue, my phone falls maybe 4 times but with a case and from a little height, no broken glass or something else.
This is all the things I tried before that ;
Using flipcover (QI charge and quick circle), I have tested the "normal" case but same issue
I had a glass protection, I have removed it and cleaned my screen, same issue
I have done lot of hard reset (i'm kind of full wipe addict), same issue
Only the solution of madgibbon works fortunately, thanks mate
I'm also a bit disappointed by this phone, it is great sure I mean fluid, great camera etc... but I have some little issue that ruin the experience unfortunately (this issue with touchscreen, i'm experiencing issue with my Chromecast too that i don't have with other phones, some heating, I don't find the battery usage so good since MM, can't relock bootloader since now). I don't blame LG because i'm using some of their products and I'm / was really satisfied with : Optimus 2x, Nexus 5, TV, Monitor, Sound Bar. Anyway, waiting for 2016's Nexus and I will see if I switch or not.
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I will try what you suggested, will report back.
Thanks for the tip.

bloodsuckingcomputer said:
I will try what you suggested, will report back.
Thanks for the tip.
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Nope, doesn't work, it is indeed, a hardware issue.
Thanks anyway. ?

bloodsuckingcomputer said:
Nope, doesn't work, it is indeed, a hardware issue.
Thanks anyway. ?
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Screen problem after all, just picked my phone up from the place that I bought for under warranty fix, and they told me they did replace for a new screen, and all is looking fine and dandy for now. Hope it stay this way, finger crossed. 3 weeks purchased and already this problem. I doubt this thing will last.