yashsingh1/xdaforums huggingface dataset:
[Nexus 7 (2013) Q&A] phazerorg:
Not as bad as some people have reported, but enough to be annoying. Swping down the notification bar sometimes causes it to go right back up as it loses my touch, same with things like solitaire where you drag cards around. Google Maps is pretty fun, as it ends up randomly zooming in or out as i drag the map around or try to rotate. Swping the keyboard mostly works but sometimes gives me two words of random letters instead of the single real word I wanted, as my swipe got broken in between or extra ghost touches were added. All of this is with my fingers firmly pressed on the screen, with both a clean screen and clean fingers.

If I use YAMTT and swipe up and down the screen, I can see the "Please touch me" flicker in the middle as it loses touches (usually as I cross the middle of the screen). Using two fingers I can reproduce the behaviour others have shown in videos where third or fourth "fingers" show up on the screen even though I have only two actually touching.

It's not bad enough that the tablet is completely useless, but it's highly annoying.
[Nexus 7 (2013) Q&A] sfhub:
Please don't take this the wrong way, your experience puts a damper on the update.

As a sanity check, could you double check about tablet says JSS15Q and not JSS15J

Also is there a possibility your multi-touch issues were more severe and/or didn't mirror everyone else's problems?
[Nexus 7 (2013) Q&A] phazerorg:
I actually double-checked myself before posting just to be sure, and it's definitely JSS15Q :(

I've heard of other peoples' issues being so bad the tablet isn't very usable. Mine is still pretty usable, but very annoying at times. So mine felt like it was in between somewhere. Better than some, worse than others. This is my third tablet and they were all about the same.

I've tried a few reboots and all apps are up to date, etc... still no change in touch issues for me.
[Nexus 7 (2013) Q&A] Coronado is dead:
One last thing, and this probably won't help. Try powering the device off, waiting a minute or two, and power it back up. If it was a calibration issue maybe the screen is retaining something. Again, probably no difference, but might as well try everything.
[Nexus 7 (2013) Q&A] :
Those are the exact same gripes I have on JSS15J. Here's hoping I get a fix! :)
[Nexus 7 (2013) Q&A] Friar Whently:
I don't mean to call into question your image flashing abilities or the integrity of the image that was flashed, but I'm curious if anyone has had their problems persist after downloading and applying the update through the "natural" OTA pathway that Google is providing and your problems have something to do with the flashing process somehow...
[Nexus 7 (2013) Q&A] g3omanser:
Can anyone a list of cities that have gotten the new update or should i start a new thread asking it? I just want to make sure cuz i dont want people to hate me like the video intro said. This migt help a lot of people as well.
[Nexus 7 (2013) Q&A] JayBomb999:
I flashed the latest JSS15Q image and I'm happy to report that pinch to zoom is much better. Still, it isn't perfect IMO. When either of the axes are close to crossing, there is a tendency for the touch points to pull toward each other. The result is a slight wobbliness and less than smooth/linear zoom.

I don't think most people would notice. However, I've grown hyper sensitive to this issue.
[Nexus 7 (2013) Q&A] phazerorg:
Just tried this, while the video I just made of it was uploading. Booted it back up and no change.

Video uploaded to YouTube and demonstrates:

swiping up and down the screen losing the touch

multi-touch craziness

going into settings to show that it's JSS15Q

http://www.youtube.com/watch?v=1mOSOn1xiQ0
[Nexus 7 (2013) Q&A] rafa3L:
That is pretty bad. Consistent. Post it in the Google thread for Paul.
[Nexus 7 (2013) Q&A] wintermute000:
Thats pretty much me, got the wobbliness but no longer ghost touches / craziness in general. Definitely can live with this and would never notice IRL. When held/grounded its perfect.
[Nexus 7 (2013) Q&A] WilliamG:
Get your device swapped out. I'm still on the un-updated 4.3, and I can put my Nexus 7.2 down on the bed and multitouch without it missing a beat. My wife's first device was broken similar to yours, and her new one is fine, too.

I understand the update is supposed to fix issues like these, but let's be honest - it shouldn't be happening in the first place. With so many devices working fine, there's no need for you to hold onto that Nexus any longer.
[Nexus 7 (2013) Q&A] phazerorg:
This is already my third. It's getting swapped as well before my exchange period is up if this isn't fixed by then. On the plus side, this is the only one so far that has zero light bleed and zero dead pixels :)
[Nexus 7 (2013) Q&A] WilliamG:
The light-bleed issues are overblown. If Google didn't pump their backlight up to max on boot-up, most people would never have an issue. Under normal usage, most of this backlight bleed isn't visible, since the brightness isn't at 600 nits!

Go exchange your device. I don't see it getting fixed.
[Nexus 7 (2013) Q&A] BrianDigital:
also not to mention the device is plastic also this would mean that putting the device in a gel/plastic type case would make the problem 100% every time

unless the device is packing enough voltage to jump through the plastic to make contact with us and not melt the device or hurt us.

i agree the old nexus 7 had this issue too, didn't have to send it off to get re grounded, could be a sensor getting a lot of garbage
[Nexus 7 (2013) Q&A] LoopDoGG79:
I have a note 10.1 It has a plastic back. Never heard or experienced issues like this. The backing is irrelevant.
[Nexus 7 (2013) Q&A] BrianDigital:
The point is, the outside of this device is plastic and touch screen, not conductive. If our hands are making the connection to ground the voltage in the device would have to be in the 13k range to jump through

Your reply is irrelevant as it makes no sense at all.
[Nexus 7 (2013) Q&A] highfigh:
Just curious, what is it exactly that you are trying to say. I'm a little confused.
[Nexus 7 (2013) Q&A] LoopDoGG79:
Also, the note 10.1 is in a leather case. In my hand or laying flat on a table in the leather case makes no difference Works every time as it should. As you can see, a tablet could have a non conductive material as a backing and work busy fine. That's why I said the backing material is irrelevant.
[Nexus 7 (2013) Q&A] highfigh:
I just updated. Slimrom now has, what I'm assuming is, the new ota. I still have single tap dead spots when laid flat. I never had the multitouch issues. Think my issue is most likely hardware.

But I can live with it :cool:. I only use it holding it.
[Nexus 7 (2013) Q&A] BrianDigital:
I have seen posts going "its a grounding issue cause when I hold the tablet the problem goes away."

Im saying it can't be due to the whole outer shell of the device is non conductive. So there is no chance someones hand is adding earth ground to the device
[Nexus 7 (2013) Q&A] Coronado is dead:
That's fine to think it isn't a grounding issue, but it sure as heck fixes the issue to hold it, so something is happening. I mean if it's not a slight grounding, what could it be, you know?
[Nexus 7 (2013) Q&A] BrianDigital:
If I had to guess maybe a sensor but can't be grounding. Do you have a case for your nexus 7 by any chance?
[Nexus 7 (2013) Q&A] :
NEW JSS15Q Factory Restore now available!

Right here guys: https://developers.google.com/android/nexus/images#razor

1. Download.

2. Extract the .tgz with 7zip or something

3. There is a file in thats a .tar. Extract that to the desktop or something

4. now Extract the image-razor-jss15q.zip to the same folder that the flash-all.bat is

5. Get into fastboot mode and unlock bootloader (you can relock it again after)

6. make sure USB is still plugged in and you are in fastboot. run flash-all.bat!

7. Let it finish!

8. Profit!

It fixed my issues!

Like I said here before. This issue can be covered up via software. Good example is Dorimanx Kernel giving me the ability to tweak my touch screen to fix my touch screen issues on my i9100......
[Nexus 7 (2013) Q&A] Coronado is dead:
Mine was returned.

Plastic can hold a static charge. Maybe that is part of the issue.
[Nexus 7 (2013) Q&A] GoodCode:
Wow, and I could have sworn it had a capacitive touchscreen, which works by...amazingly..conducting electricity.

Now it probably isn't a "grounding issue" per se (as was mentioned on the product forums), it makes no sense to have a ground on a battery operated device.

It could very well be an incorrect voltage issue, which is alleviated by grounding via the touchscreen.
[Nexus 7 (2013) Q&A] WilliamG:
I'm concerned this fix will tweak things on already-working Nexus 7's. Any chance of that? I'd rather not have my working Nexus touchscreen borked!
[Nexus 7 (2013) Q&A] WilliamG:
Wow, so after messing with that multitouch app, my Nexus 7 does indeed miss taps when not plugged into the wall. It's fine after it registers (e.g. if I hold two fingers on the screen, its's fine) but if I just sit there tapping the screen over and over, it definitely doesn't register taps every so often. It registers taps 100% of the time when plugged in. Hmm..

Anyone got a link or tip on how to just update the Nexus 7 without having to install the factory image afresh?

And will the OTA work on rooted devices with TWRP?

I'm at a bit of a loss. :)
[Nexus 7 (2013) Q&A] Rheidizded:
Bug fixed with flashing new factory image :)
[Nexus 7 (2013) Q&A] LoopDoGG79:
No, u need to be on stock recovery, on a stock ROM to receive and install OTA updates.
[Nexus 7 (2013) Q&A] wintermute000:
Seriously.... whats with all the people on custom recovery/root asking how to install the factory image without a wipe.... you know enough to unlock/custom recovery/root but too lazy to titanium??:confused:

You're rooted so just backup with Titanium, copy it off, flash the factory image, re-flash recovery/root, copy titanium data back and restore. Its not rocket surgery if you already know how to root/unlock/TWRP!!!!
[Nexus 7 (2013) Q&A] WilliamG:
OK, thank you. Do I want to back up system and user data? Or just user data?
[Nexus 7 (2013) Q&A] LoopDoGG79:
Just user. In TB you can choose which to restore, be sure to only restore user data.
[Nexus 7 (2013) Q&A] evilhunter101:
Just curious, what is rocket surgery? Lol. Just pulling your leg.

Also, thanks to everyone reporting in. I can finally go buy another N7, hopefully this update works for me!
[Nexus 7 (2013) Q&A] texnnyc:
After the reflash and reboot, did you re-clean out the cache and Dalvik?

(At this point, I'm seriously leaning towards the new Kindle HD 2013 or the LG G-Pad ... :( )
[Nexus 7 (2013) Q&A] LoopDoGG79:
I could get the Note 8.0 for a decent price thru Costco. For me, I was really looking forward to get a decent tablet with pure Google goodness. This whole debacle is a real bummer. :(

Sent from my Galaxy Note 10.1! :D
[Nexus 7 (2013) Q&A] BrianDigital:
Actually it senses and its not conducting and our fingers are not completing a circuit.

Edit and actually since we are getting all smart ass like

OK yes your exterior touchscreen is electrified which makes sense to the whole made up grounding issue since when holding it and lying it on a table and IN BOTH SCENARIOS YOUR STILL USING YOU FINGER TO COMPLETE THE CIRCUIT TO COMPLETE THE GROUND and yet have different results

I find the speculation of the kernel cutting down the voltage to the screen more probable

---------- Post added at 03:20 PM ---------- Previous post was at 03:09 PM ----------

Its def software, the last n7 had this issue too. It got fixed with a software and no one had to tie the exterior of their touchscreen to ground
[Nexus 7 (2013) Q&A] iorikun:
Actually, it might be easier if you just flash the rooted zip version. This way you don't need to restore factory recovery, yada yada.

You can get it from here:

http://xdaforums.com/showthread.php?t=2416438
[Nexus 7 (2013) Q&A] jiggytom:
It's better in the new firmware but not all there..still getting some phantom touches when using mutliple fingers.
[Nexus 7 (2013) Q&A] :
Just used ADB Sideload to flash the JSS15Q.

Update successful, but multitouch issues still linger.

Unfortunately, this tablet is going to be returned very soon.

Haven't tested GPS yet, here's hoping at least that works.
[Nexus 7 (2013) Q&A] Khimik:
Yesterday, I flashed new JSS15Q instead of JSS15J. It didn't help with multitouch problems I had. It works good, when I hold the tablet in the hand or during the charging, but I still have ghost touches and jumps otherwise. Manufacturing date - 07.2013.
[Nexus 7 (2013) Q&A] phazerorg:
JSS15Q didn't improve my GPS either. GPS works great at first, gets a lock quickly. Eventually (anywhere from 5 minutes to hours) it will stop working and not work again until reboot. I'll be returning mine as well within the next week before my time is up.
[Nexus 7 (2013) Q&A] WilliamG:
Thank you for that! Just did it, and it did indeed fix my missed taps (I noticed it playing Jetpack Joyride). Now my Nexus 7 performs admirably. :)
[Nexus 7 (2013) Q&A] A0A:
Just got the OTA and it completely fixed my issue. No erratic touches or anything even when using a case!
[Nexus 7 (2013) Q&A] Coronado is dead:
No chance you have a table and a camera, eh? Even a cell phone? Can't seem to get a video of a working one lol.
[Nexus 7 (2013) Q&A] Crescens:
Well, I updated my device and it messed it up even worse. Before at least grounding the device out with a cable to something else would stabilize the multitouch input, but now even with that it jumps all over the place if the input points are anywhere near each other.

Pretty unhappy now... =/
[Nexus 7 (2013) Q&A] trvbone:
Pushing the check for update button every hour while at work Lol.....
[Nexus 7 (2013) Q&A] krokis:
Update installed, all touch iusses is fix now!!!!

:)

Enviado desde mi Nexus 7 con Tapatalk 4
[Nexus 7 (2013) Q&A] parmend:
Definitely a lot better after the update . nexus on a flat surface can be used with one finger now and yamtt paint tests shows no misses. I think I had two separate issues one a touch problem which could be fixed ota, second a grounding problem which I still have but really don't notice it unless I look for it.

Edit: spoke too soon lol still same issues
[Nexus 7 (2013) Q&A] Simer03:
Mine does not have any issues anymore since the update! Awesome!

Sent from my HTC One
[Nexus 7 (2013) Q&A] Krunk83:
Yet...

nexus⁴
[Nexus 7 (2013) Q&A] eyecon82:
________________________________________

Like my jumped conclusion earlier, i always said it was software related...i believe people do have faulty units, but for the vast majority, it was a software issue
[Nexus 7 (2013) Q&A] trvbone:
Still waiting Lol
[Nexus 7 (2013) Q&A] Coronado is dead:
Again though, I'd like to see a video of a working unit on a table/bed.
[Nexus 7 (2013) Q&A] parmend:
I spoke too soon on mine . still having the same problems .
[Nexus 7 (2013) Q&A] DowntownJeffBrown:
So I had very minimal multi-touch when I first got my n7 it was hard to make it even freak out while crossing an axis. Then i recently flashed slim and I had horrible multi-touch. So I flashed the odexed jss15Q stock rom located here http://xdaforums.com/showthread.php?p=44920617 and now my n7 is completely free of any multi-touch issues. Here is a video http://db.tt/1hYT9rTd

>^.^< Sent from meow HTC One which is like catnip to me atm
[Nexus 7 (2013) Q&A] Coronado is dead:
That looks good so far. Mind showing me one more thing?

Get on your home screen and swipe left and right in the middle of the tablet on the bed a bunch of times and see if it catches them all.

And sorry for all the requests,. so if you can't I completely understand. Glad you have it working thus far!
[Nexus 7 (2013) Q&A] DowntownJeffBrown:
No problem give me a minute

Edit: OK here you go I had to do it on a table now cause girl and my kids are watching a movie in our room with the lights off. If u need anything else or if on a table doesn't work let me know. http://db.tt/Vfl4C1zI

>^.^< Sent from meow HTC One which is like catnip to me atm
[Nexus 7 (2013) Q&A] LoopDoGG79:
Thanks for the video buddy! If you can, can you upload one showing what build your on, and using YAMTT. That will be greatly appreciated! :D
[Nexus 7 (2013) Q&A] Coronado is dead:
Thanks for the update and video man. You even lifted your finger each swipe which I forgot to ask for. Thanks!
[Nexus 7 (2013) Q&A] DowntownJeffBrown:
My build is is my first video of you got a chance to see it. Here u go http://xdaforums.com/showthread.php?p=44925305 that one has YAMTT also

>^.^< Sent from meow HTC One which is like catnip to me atm

---------- Post added at 09:24 PM ---------- Previous post was at 09:22 PM ----------

Your welcome. Yes I kinda figured you wanted me to pick my finger up with each touch. Good luck with everything bro

>^.^< Sent from meow HTC One which is like catnip to me atm
[Nexus 7 (2013) Q&A] wasnt:
Just got the update and tested. This did not fix my multitouch issue. I actually think it got worse.

Anyone interested? Here's the video. http://youtu.be/O2p_VmcZ5Bo
[Nexus 7 (2013) Q&A] highfigh:
Is it possible this is just a bug in yamtt? I mean, do you have issues in normal usage? Does it do the same thing in developer options touch tests?

For me I still have dead spots when tapping with one finger. When I touch device with other hand it responds to every touch.
[Nexus 7 (2013) Q&A] nmalready:
Finally fixed!

I have had horrible touch/multi-touch response from the beginning of owning this tablet. I can say now that I switched to jss15q it has 100% relieved my issues. Plus when I switched back to cm10.2 the changes stuck!
[Nexus 7 (2013) Q&A] wintermute000:
If you went the latest I believe they merged the changes. It's confirmed new drivers are in New jss15q kernel
[Nexus 7 (2013) Q&A] nmalready:
Actually I had a nandroid backup from 8/21 that I went back to. I was very suprised when I tested the touch that it still worked perfect.
[Nexus 7 (2013) Q&A] Coronado is dead:
My iLLumishield screen protector causes the missed touches to return when not in my hand. Going to have to decide if the protection is worth it.
[Nexus 7 (2013) Q&A] DowntownJeffBrown:
Interesting...

We see you meow on our nexus⁴ can we haz some more?
[Nexus 7 (2013) Q&A] SubMatrix:
So you don't miss any single touches when there's no screen protector?
[Nexus 7 (2013) Q&A] Coronado is dead:
Correct.
[Nexus 7 (2013) Q&A] wintermute000:
Lots of people have been reporting screen protectors degrading the touch performance
[Nexus 7 (2013) Q&A] stimr2:
I don't plan on reinstalling mine because of that. I never noticed the problem until I got a screen protector.

Just flashed the new update and did some testing. The multi-touch occasionally doesn't register or goes erratic when 2 fingers are brought together vertically and ungrounded. When I move the 2 fingers around when their close together the multi is erratic. It's no where as bad as the videos I've seen from other members. I haven't noticed any issues under normal use only during a multi touch test.
[Nexus 7 (2013) Q&A] Elsydeon:
I flashed the latest firmware manually and while the multitouch seems to have been fixed, I'm still getting the same issue with ghost lift offs and spotty single touches during single finger swipes. It's especially worse for some reason when the tablet is used in bed, screen down. I actually don't think I'd miss the multitouch, but the problematic single touch makes it impossible to use swype on the keyboard, or even just to swipe through a typical news app, without it triggering something accidentally along the way. Very disappointed, as this update literally came just two days after my return period expired...I held out trusting it really would be fixed by a flash, but I guess not. I do have a Spigen protector on, but am very hesitant to basically dump $12 down the trash, and I really don't want to go protector-less.
[Nexus 7 (2013) Q&A] wasnt:
I think you might've found the issue. A bug with YAMTT. I did the SAME test on my old Nexus 7 that I've had since day one and it gets the same response in YAMTT. That tablet has no issues what so ever with touch, only when using YAMTT.

I *AM* still getting issues with single touches on my new 2013 Nexus 7 32GB so I am still doing a return.

I will do more testing today on both applications.
[Nexus 7 (2013) Q&A] trvbone:
Still waiting for ota Lol might get impatient enough to flash deodexed rom... But I haven't even unlocked the bootloader yet.
[Nexus 7 (2013) Q&A] phazerorg:
I don't have a screen protector and I'm experiencing the same single touch/swipe issues as you. So removing the protector might make it better, but probably wouldn't solve the real problem. Even if it made it usable, it's pretty normal to expect to be able to use a screen protector so you shouldn't have to make that sacrifice. It seems like many of these tablets are just plain broken.

It's just annoying if I'm holding it or it's plugged in... but if it's sitting on a table/bed/pillow ... it becomes very frustrating to use and sometimes doesn't get my touches at all on parts of the screen until I finally pick it up. My return period on this third tablet isn't up until next weekend, so this one will be going back to the store as well...
[Nexus 7 (2013) Q&A] trvbone:
Yeah I had issues with illumishield as well. I made a couple of YouTube videos demonstrating the issues then emailed them and they refunded me the money. But I am waiting for the update to come through cuz I have one protector left. I'm hoping that the update will allow me to use the screen protector
[Nexus 7 (2013) Q&A] sfhub:
That is exactly the case. There are some units that have "dead spots" on the screen where the sensitivity is different than the areas around them. Usually you'll find this in the top 1/3 of the screen. By 1/3 I am talking about portrait orientation, though the same area will have deadspots in portrait and landscape oriented usage.

What happens in the dead spots is:

when you tap in those areas, often you get missed taps

when you swipe across those areas, it registers as a release over the dead spot and re-tap after the dead spot

Some screens are just on the edge where they work normal most of the time but sometimes you get a missed tap. On these units, if you add a screen protector, you often push them over the edge and the dead spots (and resulting symptoms) become worse.

On these units, often if you hold them in your hand or connect the USB, the voltage/current characteristics change just slightly enough to make everything work perfect.

There are units however that have perfect screens with no dead spots even sitting on a table. On these units if you add a screen protector, it will still work normal.

At this point, reading all the comments and from personal experience, there are hardware variances on these multi-touch digitizers and some of it can be compensated for in firmware adjustments, but probably some of the variances are too great to compensate for. I will just guess Google's strategy is to minimize the symptoms as much as possible through software, then let the RMA/return process take care of the rest.

That's just my opinion though, not based on any inside info.
[Nexus 7 (2013) Q&A] Coronado is dead:
Mine is perfect until a screen protector is applied. Just another slight variance to account for.
[Nexus 7 (2013) Q&A] sfhub:
Some of you have perfectly acceptable tablets except for GPS, are worried JSS15Q could introduce more (multi-touch, etc) issues, and just want the GPS fixed. You might be interested in this:

Help test GPS fix that does NOT require OS upgrade, stay on JWR66N/JSS15J
[Nexus 7 (2013) Q&A] trvbone:
I'm still waiting for my dam update
[Nexus 7 (2013) Q&A] plasticities:
Yea same here, it's taking too damn long Google!