yashsingh1/xdaforums huggingface dataset:
[G4 General] chrisokaly:
My final answer here is its a grounding issue.

If I lay the phone down on my coffee table, i max out at 6 on any multi touch test.

If my wife holds the phone, gripping the back of the phone with the leather cover on, i can sometimes get 8, but moving my fingers causes the screen to bug out.

When I remove the leather back, and my wife holds the phone, gripping the battery, i get 10 touches registered everytime, and can move my fingers about the screen with no issues....

Now to figure a way to rig this......

---------- Post added at 10:47 PM ---------- Previous post was at 09:58 PM ----------

Extending this out a bit further...I tried placing a folded napkin between the back of the phone and my wife's hand while she was holding it. As long as any part of the phone remained in contact with her hand, touch was unaffected. Once the phone left contact with her hand, touch got wonky again.
[G4 General] joshuadjohnson22:
It has to be something like that. When my phone is plugged in to the charger I get no miss taps. None. When I use a multi touch app to test how many fingers the screen picks up while plugged in I can get 10 no problem but unplugged if you get to 6 it usually freaks out. Try it now, I use antutu and select screen Test -> multi touch There is something to this.
[G4 General] chrisokaly:
There was a post at some point about the OPO having a similar problem, where the digitizer was touching metal on metal to the logic board. Seems like a feasible explanation for whats going on here....
[G4 General] kevcal:
The issue with mine is that if I'm not holding the back of the phone, single touches are detected but multiple ones aren't (hence pinch to zoom doesn't work).

So the problem does appear to be a capacitive issue.
[G4 General] vegetaleb:
So it could be a hardware problem after all?
[G4 General] joshuadjohnson22:
It is looking that way, if it was a software issue they could have resolved it with an update already. They are probably keeping it on the DL because they do not want to recall which would probably destroy them.
[G4 General] malnash52@gmail.com:
A phone that has so much potential and is amazing is being destroyed by a ****ing touch probelm so sad I guess I will go for the note 5 then its sad that I actually waited 4 months to get this phone just to see if LG would fix it I guess not I had such high hopes for this phone I'm guessing LG knew about this problem but didn't want to screw themselves by delaying the release
[G4 General] Cobthaich:
If this is a hardware grounding issue is there any fix we could figure out to do as it seems LG has left us consumers without helping us. i spent $600 on this phone and cannot return it and from what I have been reading the touch screen issue has caught on and scared people from buying it. My local Rogers store said that they have only sold two of these phones. I don't fully understand grounding with phones but could we do something ourselves or is the phone fubar if it is hardware?
[G4 General] chrisokaly:
im gonna pull this baby apart tonight, similar to the OPO guide on doing this, and see if I can find some metal on metal crime...

what I'd like to know is if this is prevalent on all carrier phones, because that would likely take software out of the equation. also, if someone can get more than 6 simultaneous touches on a touch screen test WITHOUT your phone being plugged in... preferably laying flat on a table. If no one can get this to work then we know its a manufacturing issue. If you CAN get it to work, let me know when you got your phone. My guess here is there is either a global manufacturing error thats affected ALL phones, OR (if someone can reproduce a "perfect" touchscreen) there was a bad first/second batch of phones.

Please reply in this thread if you have time today....

I have T-Mobile, brown leather, purchased June 1 (early adopter)
[G4 General] joshuadjohnson22:
I have AT&T and I just got it and it freaks out with more than 6 (as you know from above)

Thanks for trying to take it apart!
[G4 General] CJ-Wylde:
The only lag issues I've ever had on my G4 is with the LG Keyboard, so I installed Google's Keyboard from the Play Store and Uninstalled the LG Keyboard via Titanium Backup and have not once experienced an issue since. Hopefully that can help a few people. It sucks that anyone is having touch response issues on their G4... aside from that issue people are having, it's an outstanding phone.
[G4 General] dastars:
AT&T version. Able to get 10 touches flat, both while charging and while not, and both with/without plastic case.

That said, I definitely have touch issues, especially on the lock screen so I'm not willing to say it's a non-issue. Might just be having a good moment.
[G4 General] RedOCtobyr:
Verizon, non-rooted, software 611A, with a TG screen protector. Purchased mid-July, from Best Buy. I tested this a week or so ago, and was able to get to 10 touches.

I am using YAMTT 2.1.0.

I tried again just now, I can briefly get to 10 touches sometimes, but YAMTT kind of freaks out, and often starts the test over again (I have to stop touching the screen, then start again). I can more-reliably get to 6 touches. Once I add finger #7, things often start flickering, and sometimes it freaks out. Even 6 sometimes freaks out.

This is with it flat, on a table, first unplugged, then plugged in. It SEEMED a little more stable when plugged in, but that may be my imagination. I also tried resting it on my leg, the results seemed the same to me. Plastic back, with a plastic case also installed.

I'm inclined to say I more easily got to 10 touches the last time I tried this, but maybe I wasn't paying as close attention to how difficult it became to reliably get past 6 touches.

My issues are not with lag, or inability to do 2-finger actions, but mainly with missed taps. Sometimes a swipe being interpreted as a tap, but that's less-common. Usually my fault, I swipe too close the edge of the screen, hitting the lip of my case., raising my finger, and/or going off the edge of the screen a bit.
[G4 General] joshuadjohnson22:
Are you sure though. At first I thought mine was fine until I knew what to look for. After I noticed it once I noticed it every freakin time. What I do to test is go to the home screen, tap the app draw icon and the home button and keep alternating back in forth quickly. You will soon see that it will miss clicks. If you could do it 50 times in a row without issues please let us know. After mods I can go 30-40 clicks without the issues but then it may happen after 3 or 4. It is sporadic and aggravating. It also messes with scrolling in facebook sometimes it is click instead of scroll. The keyboard will remove a lot of annoyance but if your unit is working then I will take it to AT&T before my 14 days are up and get another one. Also what software version are you on? 81010e or g?

I think it would also be helpful to know when you got your unit maybe even the manufacturer location.
[G4 General] CJ-Wylde:
I don't know if this is why I don't have the issue, but I've heavily tweaked the daylights out of my G4. I'm using MicroMod777's xTreme ROM v1.1, Xposed with Amplify, GravityBox, Smart Network & Unicon along with Nova Launcher Prime, Swipe Navigation (Hidden NavBar), bunch of things Frozen / Uninstalled via TitaniumBackup Pro and of course the Google Keyboard as well.

I noticed the missed taps and random lag that others experience when I had the phone stock, but it had seemed to go away once I switched to the Google Keyboard & Nova Launcher Prime and that was still stock entirely. It might've happened here and there and I just didn't notice, but now with it all tweaked up since we've got Root, Xposed, etc... I'm enjoying the absolute hell out of my G4. Here's my details you asked for:

T-Mobile LG G4 (First Run, got at Launch)

Android Version: 5.1

Baseband Version: MPSS.BO.2.5.c3-00070-M8992FAAAANAZM-1

Kernel Version: 3.10.49

Build Number: LMY47D

Software Version: xTreme 1.1 base H81110h

Security Software Version: MDF v1.1 Release 4

Added Note: I do not use FaceBook's Mobile Apps at all. They have always been nothing but headaches and battery drainers. I almost don't use FaceBook at all anymore since I've switched to the much less dramatic Google Communities for my online social life. I've had some friends with other Android phones have various issues with FaceBook with scrolling, clicks, battery drains, you name it...

Give the Google Keyboard a try to see if that slows down some of the issues you're having, and I believe you can Root the AT&T so you can enjoy the other options such as Xposed, Amplify, Smart Network (I'm getting stupid nice battery life now)... and using Titanium Backup you can disable all the bloat which might just help bring some snappiness back to your experience.
[G4 General] vegetaleb:
I will probably swap my htc m9 with a 1 week used G4 these 2 days, what is the fastest way to check the touchscreen issue? It has 18 months warranty but i don't wana lose time at lg workshop
[G4 General] joshuadjohnson22:
I have done all the root freeze stuff and it is much faster and mistypes are reduced but they still exist. LG keyboard uninstall is a must but still SOOO annoying. I LOVE this phone but that is keeping me from wanting to keep it. :-/
[G4 General] mcnick0495:
So the AT&T variant doesn't have an unlocked bootloader, and can't install twrp, so can't flash xposed or a different ROM.

If its software, a different ROM (ie CM) should fix it.

Did you disable the stock LG launcher as well? Or any other LG apps/services?
[G4 General] CJ-Wylde:
Ahhh yes, you're right, it does not. I had read something about One Click TWRP but just realized that it's in the T-Mobile section. I was already rooted and unlocked (via Dev option) on mine before learning much about the ATT model. I would love an AOSP based ROM for mine, but without the loss of the stunning LG Camera app, although not likely.

When it comes to what I've disabled from LG, quite a bit... but I've always pulled the Launcher out on any phone and swapped it for Nova Launcher Prime. I replace LG's phone app as well as contacts app with Hangouts + Hangouts Dialer & Google Contacts and have my Google Voice number and Hangouts / Dialer as my only in or out for calls, messages, video calls and voicemail.

The only LG app I keep is the Gallery, because it's really nice. I replace the eMail with Inbox, Music with Google Play Music... I pretty much use all of Google's offerings and replaced what I could of LG's and then Froze or Uninstalled LG's stuff in Titanium Backup.
[G4 General] chrisokaly:
I know a lot of people have suggested it was software, but having a different response on my touchscreen based on how much of the device touches my hand, or another conductor of electticity, is not in any way software related. I'm leaning towards this having the same issue as the OPO did last year. Its gotta be hardware
[G4 General] uly609:
We have Xposed now for ALL variants. I can personally confirm it works on AT&T H810. Follow the guide here http://xdaforums.com/g4/themes-apps/guide-installing-xposed-locked-t3181593
[G4 General] mcnick0495:
You just made my day
[G4 General] omermu:
It is definitely a grounding / similar problem

I have H815 purchased in Czech Republic. BL unlocked and rooted. Glass protector is installed.

I purchased iOttie Easy One touch 2 (which is a remarkable phone holder). When I put the phone in this holder, the touch did not work almost at all.

Later, I received my Verus case, and now when the phone is in the case and held by the car phone holder it is more operative, but still not well - I need to press harder on the screen in order to register touch but I can use the gps somehow.

When I take it out of the holder, it is much better, but yet not perfect.

I sometimes miss my Samsung Galaxy S 3...
[G4 General] elcom:
Latest update (10f) completely fixed this issue for me.
[G4 General] joshuadjohnson22:
really? not a single misclick? Can you rack up more than 6 fingers (of the charger of course) ?

This could be great news, for us AT&T users we will have the update in 6 months :-/ yayyyy
[G4 General] elcom:
Just tested. Layed the phone flat on a table and registered 8 fingers. This was definitely not possible before the update. I couldn't even pinch zoom with two fingers before the update. It really seems dare I say... perfect....
[G4 General] joshuadjohnson22:
that's sweet, well still screwed here though lol. One day AT&T will release it I'm sure.
[G4 General] Red_Baran:
Just an update to what I experienced. I had a major touch issue, this helped a bit but I finally needed to have the phone replaced because other issues and right after root I added this directly to the build.prop and I haven't noticed a single touch miss. So unfortunately in my case there must of been a hardware issue.
[G4 General] joshuadjohnson22:
did the phone you receive by chance have the update?
[G4 General] Red_Baran:
Yes the phone I received came with the update 11A
[G4 General] rickmatic:
I wanted to chyme in with my 2cents. I pre ordered my g4 from sprint so I'm pretty sure it was first batch.

I've had the issues from day 1. I tried every possible"solution" with no fix. I recently bought a circle cover case and enabled it's features. When I close the cover it shows the watch face as it should.

I noticed after a couple days that when I fold the cover open and its laying flat on the back of the phone the screen shows the watch face, as if its close(while its open).

My question for anyone is this....

What triggers the quick circle case screen? How does the phone know when to activate the option? Is it a sensor on the phone? If so what would cause that sensor to turn on when it's open? Finally can it be disabled?
[G4 General] rickmatic:
I was able to find out the sensor it uses... Magnetic sensor. I downloaded the app posted and turned off the magnetic sensor. I'm not gonna say the touch screen is fixed, but the phone is much smoother and snappier.

https://play.google.com/store/apps/details?id=com.innoventions.sensorkinetics

---------- Post added at 10:54 AM ---------- Previous post was at 09:55 AM ----------

after further testing I found that turning off linear, gravity, & pressure sensors give the best results on YAMTT. 9TOUCHES(flat on the table 1 finger at a time).

Try it for your self with different combinations. Idk how or why it works, maybe someone can chyme in.
[G4 General] lawrence750:
after reading your posts here, I tested on my H815, it's international but O2UK branded. I can reproduce the problem by laying my phone on its back on the desk etc, and the touch is dodgy, and the multitouch issue can be reproduced.

When i put the phone in my lap, or get someone else to hold it, or plug a mains charger in, the problem never happens. It detects 10 fingers, first time every time, no mucking around. This to me is definitely hardware, and software may be able to make the issue less apparent, but all it will do is introduce artificial lag into the users experience. How would that be a good thing? But the most recent fw update to 10d looks like it's already doing this.

My QI charging doesn't work anymore either and I've confirmed it isn't the case/sticker/QI charger, it's definitely the phone, so two hardware issues. I'm biding my time for now and will hopefully get a replacement in the next few months to fix both issues, when there is some sort of official fix for the touch issue. I would just take apart the phone myself if I knew I could identify where the issue was, but I'm not confident I could find it, and there's no point voiding my warranty when I will likely be issued a replacement anyway for the QI problem, as that requires a new main PCB..
[G4 General] rush381:
Wouldn't disabling all this affect the GPS functionality?
[G4 General] faizalotai:
What about this

# SMOOTH SCROLLING AND TOUCH RESPONSE
ro.max.fling_velocity=120000
ro.min.fling_velocity=80000
ro.sf.compbypass.enable=0
persist.sys.use_dithering=0
view.scroll_friction=10
ro.mot.eri.losalert.delay=1000

This was added to my build.prop..but i don't know it is working or placebo as i haven't much experience touch issue such as pinch out or in before

I'm still waiting for someone who can share their build.prop on latest fw released

This is for advance user...i'm not responsible of any damage or bootlooping of your device...
[G4 General] justlovejoy:
So far so good! I was getting tired of constantly retyping and losing the joke window period for a laugh. Speeding through text like a pro using stock keyboard. I pulled the build.prop used notepad++ and pushed it back. Went to root explorer, fixed permissions to 644 and rebooted. Battery even seems better, cool device.
[G4 General] lawrence750:
I find this quite interesting, more so the magnetic one.. I haven't tried it myself, but i can say on a couple of occasions whilst my phone was wirelessly charging (obviously this is using magnetism), the touch went completely haywire, it was unusable until i picked the phone up, i couldn't make sense of it at the time as it wasn't reproducible, and now my wireless charging doesn't work I can't test any further..

Could just be a coincidence, but I just thought worth pointing this out.
[G4 General] joshuadjohnson22:
You mean like this ;)
[G4 General] shadearg:
This additional build.prop setting has made touch solid for me:

I use this in conjunction with the touch and touch related sections from OP. I haven't been able to reproduce anything that I would consider to be a miss or ghost tap since, and both graphic and touch responsiveness are noticeably better.

This setting hasn't made any noticeable impact on my battery life.
[G4 General] nyt:
I still get misses with debug.egl.swapinterval=-1
[G4 General] shadearg:
Did you apply the change to build.prop and reboot, or did you use setprop from a shell to test? The setprop method requires a screen cycle.
[G4 General] nyt:
build.prop and reload. seems a little better after i cleaned my screen. I'll keep testing.
[G4 General] shadearg:
I've been testing it for a couple days. I didn't want to get anyone's hope up before I was sure it wasn't a placebo.
[G4 General] joshuadjohnson22:
do you just add this line anywhere?
[Shield Tablet General] joshtb86:
Are you guys sending your tablets back to be replaced for the battery issue?
[Shield Tablet General] Frankenscript:
Voted yes because I have filed RMA for the battery issue. However it seems jury is still out as to whether Nvidia will require actual return of the old tablet. Poll could be reworded to capture this distinction. May vary by geography, too..

Marc
[Shield Tablet General] joshtb86:
im sure people will figure out a way to make sure both tablets can be used
[Shield Tablet General] jtorress:
Well since the tablet has the potential to catch fire then it would be illegal to mail the tablet since you cant mail "flammables" right? lol
[Shield Tablet General] ArN0V:
Yes new tab for 0€ of course

Envoyé de mon Nexus 5 en utilisant Tapatalk
[Shield Tablet General] Mathman85:
Yes, but I was conflicted about it. On one hand, I don't ever want my tablet to start on fire. But on the other, I've had FAR fewer issues with my tablet (i.e. zero) than I've heard of other people having, so I'm concerned that I'm sending in a flawless tablet and may receive in exchange a tablet that could end up with cracked corners and that becomes laggy, etc. Best case, my usage of the tablet is the reason I've had no issues with it, but I just don't know... I do use the hell out of it, so I'd have expected that if use was the cause, my tablet would've been laggy and heat up as much as anybody else's.
[Shield Tablet General] MikaelSparks:
I'm RMAing, but I'm mixed on it. I bought it a week before the announcement and considered just returning it for a tablet with WiFi that actually works properly, but the features that I want the WiFi for others can't do as well anyway so I'll get the new one and hope the smart people around here figure out how to block the kill switch between now and then so I have 2. I am annoyed about the fact that they must have known before the announcement since they implemented the changes in ota 3.1 for the rma process and battery check, which would have taken time to plan, considering my unit was one week out of the store, one would think they would have pulled the flammable stock off the shelves and replaced with newer units. :rolleyes:
[Shield Tablet General] P00r:
Indeed recalled battery are prohibited by most courier, air freight and import, export are not possible under worldwide regulation even for recycling. So freight will be fairly expensive for those return if they elect to get them back.

Using ground local freight it could be possible but I am not sure about this.
[Shield Tablet General] Ginxeng:
Josh@NVIDIA said

Source https://forums.geforce.com/default/...return-it-what-do-i-do-/post/4627891/#4627891
[Shield Tablet General] cheetah2k:
Wont the old tablet be rendered useless anyways? If Nvidia are kind enough to send me 2 replacements for the 2 that I have with Y01, then I'm happy to send them back.
[Shield Tablet General] Ginxeng:
Yes it will be considered useless but there is talk about some people wanting to install a custom rom and/or tricking it into not erasing itself and keep using it. I would like to keep mine for spare parts,I'll take out and recycle the battery and keep the device for spare parts like LCD screen and such.
[Shield Tablet General] kemoli:
country not listed

does anyone has made the recall process from a country that is not listed at the registration recall program???

thanks in advance
[Shield Tablet General] cheetah2k:
The way I see it is that now that Nvidia has presented us with an RMA option on these tablets, if you choose to continue to use it after getting the new one and it catches fire and burns down your house, you may be in limbo over your insurance payout.... "knowingly continuing to use a faulty product that has been recalled"...

I dunno, the moment my new ones turn up, if there is no requirement to return, the 2 I have will be dumped in a bucket of salt water to neutalise the battery, and binned :good:
[Shield Tablet General] wiQbold:
I think he is right. If they are so fair. I don 't wan't to be fault if someone dies
[Shield Tablet General] nex86:
I wanna keep it or give it to a friend or my dad since I can't sell it.

Its not fair nor legal to sell an affected tablet that can always catch fire or kills itself when restoring the factory image or possible after an OTA update.
[Shield Tablet General] us3rX:
Conflicted on whether or not I want to send mine back. One on hand, free tablet! But on the other. Nvidia didn't have to do this, they could of simply told us to RMA them, send them in, wait for repair and wait for them to send the tablet back. I haven't had any problems with the battery overheating or anything.
[Shield Tablet General] cheetah2k:
I'll be interested to know if there is a way around Nvidia's method of rendering the tablet useless..

Time will tell.

Has anyone received their replacement yet?
[Shield Tablet General] mcord11758:
Got my replacement today. As others have noted the old one has not been killed. I flashed bliss pop just in case it may help but I turned it off and placed it in a box. Have not decided if I plan on keeping it or not. May, if it does not get killed, use it as a dedicated kodi box for my bed room
[Shield Tablet General] us3rX:
Got mine today. But as others have done. I wiped the device and installed SlimLP on the "RMA" device. I'll leave the other stock(rooted) for now and see what happens. But at the moment, as reported here, on reddit, on the nvidia forums and etc. The old devices arent locked yet. Maybe they are giving people more time to move data from one to the other? Who knows.
[Shield Tablet General] cheetah2k:
I'm in Australia and got the RMA approved email 2nd August, but have yet to receive any notification that my replacements have shipped :(.

Waiting on WIFI and LTE versions to arrive... I'll switch them off when I get the replacements and wait for a solution... I just hope they don't take too long issuing replacements to international buyers :(

I would guess that they would not issue the kill notice on these until all of the faulty units have been replaced...