Any devs here know any way to calibrate the gyro? - Nexus 7 Q&A, Help & Troubleshooting

Anyone know of any hidden menus or settings or anything to calibrate the gyro/accelerometer whatever permanently?
This is my second N7 and I have to hold it pretty much vertically before it will rotate and games such as Asphalt 7 veer off to the right, I have to tilt about 45 degrees left to get it straight.
I have set in motion an RMA but judging by the amount of problems I'm loathed to send it back and get another duff.
The screen has a tiny amount of lift and barely noticeable so if there is a way to fix the gyro I would rather do it myself.
Tried many different compass/spirit level calibration apps but they only sort it out temporarily.

shaneydroid said:
Anyone know of any hidden menus or settings or anything to calibrate the gyro/accelerometer whatever permanently?
This is my second N7 and I have to hold it pretty much vertically before it will rotate and games such as Asphalt 7 veer off to the right, I have to tilt about 45 degrees left to get it straight.
I have set in motion an RMA but judging by the amount of problems I'm loathed to send it back and get another duff.
The screen has a tiny amount of lift and barely noticeable so if there is a way to fix the gyro I would rather do it myself.
Tried many different compass/spirit level calibration apps but they only sort it out temporarily.
Click to expand...
Click to collapse
There isnt a option in the device to do that.
Though:
I have made a quick tutorial on how to calibrate your nexus 7.
I hope this helps many of you guy's.
Video: How to calibrate your Nexus 7
Site/Text based tut:VALKYRIE|Android Blogpost.
Click to expand...
Click to collapse

I did try that app at the time and it would sort of fix it for a while, even after turning off the device but the problem came back.
I went ahead with the RMA and the replacement was and still is perfect.

Related

Did google fix the sreen problem after the upgrade?

Hi, Just wonder if you still have the screen problem (register the wrong place when click) after the upgrade.
No. You should check out the humongous thread on google support forums. Googe have now abandned even giving updates on this serious problem.
http://www.google.com/support/forum...8e&hl=en&fid=04134c63c784258e00047fdfe09ae547
p.s. no fix in ere36b either (as im running that now and still experience this problem at random)
I don't understand this issue, I just don't see it on mine at all, no matter what ROM I install ... there has to be something more to this than a simple fault across all handsets ... either select faulty ones or some other factor. Mine just works 100% as expected at all times.
That said I have had no 3G issues either, no matter what radio version I use. Perhaps I am lucky ?
I think its because people are touching the edge of the screen while pressing with the other causing it to register incorrectly
duncan888 said:
I think its because people are touching the edge of the screen while pressing with the other causing it to register incorrectly
Click to expand...
Click to collapse
That is not it, there are plenty of videos that show the touchsreen misfiring while just laying on the table. Also, the way I hold my phone I am never touching the glass surface other than with the one finger doing the touching.
With regards to some people not seeing it, this issue is very random. I can go for days without noticing it and then out of the blue it would come back, most annoying when it happens while typing something.
There is another somewhat related issue with the sensor on the n1. If you download an app called multi touch paint and try to draw two parallel lines simultaneously from say top left corner down to bottom right you will see that the lines are not straight at all and full of zigzags. Only way that this sensor recognizes multiple lines properly is if you draw perfectly vertical or horizontal lines.
There is also a discussion on developer groups where game developers are pointing out this very problem of multi toch totally being screwed up where it switches axis causing your touch to register in completely the wrong place. From the comments of the android engineer it makes it seem that the sensor hardware is just like that, cheap and low quality.
Link to discussion: http://groups.google.com/group/andr...read/thread/d0aa3eea8fd9a2b8/9a8ea81133866460
duncan888 said:
I think its because people are touching the edge of the screen while pressing with the other causing it to register incorrectly
Click to expand...
Click to collapse
trust me its not.
i have had this twice and has nothing to do with that.
i dont see it as a huge problem but a lot of people are getting this on a daily basis..
vas41 said:
That is not it, there are plenty of videos that show the touchsreen misfiring while just laying on the table. Also, the way I hold my phone I am never touching the glass surface other than with the one finger doing the touching.
With regards to some people not seeing it, this issue is very random. I can go for days without noticing it and then out of the blue it would come back, most anyin when it happens while typing something.
There is another somewhat related issue with the sensor on the n1. If you download an app called multi touch paint and try to draw to lines simultaneously from say top left corner down to bottom right you will see that the lines are not straight at all and full of zigzags. Onlyway that this sensor recognizes multiple lines properly is if you draw perfectly vertical or horizontal lines.
There is also a discussion on developer groups where game developers are pointing out this very problem of multi toch totally being screwed up where it switches axis causing your touch to register in completely the wrong place. Fromn the comments of the android engineer it makes it seem that the sensor hardware is just like that, cheap and low quality.
Link to discussion: http://groups.google.com/group/andr...read/thread/d0aa3eea8fd9a2b8/9a8ea81133866460
Click to expand...
Click to collapse
I know, I have seen all these videos and attempted to re-create many times to test I have never seen this issue once.
Don't get me wrong I can understand it being a mare of you are having it, but I just dont ever see it.
after trolling the Google thread, it seems to me there are several scenarios everyone is lumping into "screen issues" and it's going to be hard to pin it down to one source
Mine happens (touch registers on the wrong part of the screen) when I am using certain apps (Ringdroid, Browser mostly) - a couple of things clears it up ; press the sleep button, kill all tasks if you have an app for it, or change to landscape mode. For other people it's the soft keys and/or much worse. Since mine clears up with a specific action, I tend to think it is software related.
With mine it used randomly to happen but only in the Launcher (never again since 36B). I couldn't point anywhere but if I selected any app with the trackball and opend ist everything worked fine again, also the keyboard on the launcher worked well. For me it seems that it has something to do with the launcher.

love vs hate - screen sensitivity (mostly hate)

I loved everything about this Phone until today. Today is the day I tried to access ebay from my Phone. Brought up the page in only a few seconds, good start. Pinch to zoom working well, excellent.
username in without too much trouble.
Password.... it took me 20 mins to get this in due to the ****ty sensitivity on the screen. I was almost at the point of throwing it against the wall.
I have the sensitivity fix installed, is there proper solution for this problem or some way to make the screen much more accurate for typing?
stoolzo said:
I loved everything about this Phone until today. Today is the day I tried to access ebay from my Phone. Brought up the page in only a few seconds, good start. Pinch to zoom working well, excellent.
username in without too much trouble.
Password.... it took me 20 mins to get this in due to the ****ty sensitivity on the screen. I was almost at the point of throwing it against the wall.
I have the sensitivity fix installed, is there proper solution for this problem or some way to make the screen much more accurate for typing?
Click to expand...
Click to collapse
calibrate the screen ,it solves allot of issues , if this doesnot fix it change the screen
change the screen, you mean have it replaced?, this is my second phone as they other was the same, are we sure this isnt something we are going to have to live with?
stoolzo said:
Password.... it took me 20 mins to get this in due to the ****ty sensitivity on the screen. I was almost at the point of throwing it against the wall.
Click to expand...
Click to collapse
what was the problem?
clicking the password field (I just find you have to be quite zoomed in, in opera it seems to ignore clicks to fields unless the fields have been zoomed in on.)
or typing the password on the keyboard because it has no auto text correction? (I dont really find this a problem to be honest, I use a large number of numbers, letters uppercase and lowercase and symbols and aslong as I dont type it too fast and think about each key I will always type it right first time)
getting into the fields wasnt too bad with zoom. The problem was multiple taps. When I type a key sometimes It also puts on all the keys around it, seems to be a bit random - I havent got sausage fingers either.
It may be worse for me as I had a touch HD before this and the resistive screen was very accurate, may just need more time to acclimatise.
you probably should go into notes and try drawing lines around, if they aren't really straight or if by pressing in one spot you have the cursoir drawing all around your fingertip, then it's probably still something to do with warranty servicing
Me, on the other side, never ever had any problem with sensitivity at all, all the contrary I think that if I had to install the sensitivity patch it would be way more unpleasant to use the phone, I like the sensitivity as it is now
:S hmm that sounds a bit weird, I don't really have much of a problem with key accuracy.
are you typing your password too fast? might help if you slow it down, instead of retyping it ten times, take 5 times longer to type it the first time and you have already cut down the time it takes you by a lot
Get the original stylus from HTC and try again. If it happens with the stylus too the screen is fu.....
This is going to be a random suggestion
Do you have any Task Managers installed? Such as Dutty's/Touch X or Appelflap's or anyone that put an icon in the top right of your screen.
If so, try uninstalling them and see if this a has any positive affect on your typing.
We'll deal with a replacement Task Manager later
when I move quickly accross the page it is fine, when moving slowly its absolutely terrible, akin to sizeometer earthquake 9 on the ricter scale. I am using Laurentius26 GoldEdition V2.1, I will flash back to stock and see what that is like.
this is what I am getting, exactly..!
http://www.youtube.com/watch?v=3rJJ1eyM9FM&feature=related
Have you tried using a different rom, if a new rom doesnt fix it there must be some hardware failure since that is not standard behaviour for the screen. I have just performed the same test on my phone and I get near perfect straight lines even while varying the pressure on the screen.
You say you have a fix installed is it this one: http://forum.xda-developers.com/showthread.php?t=604831
I had the none ghost fix installed but realised I have both problems. Just uninstalled and installed the ghost+sense fix and reset....
no change
will try a new ROM, if no change then I am going to send it back to VODA, this was a "nearly new" phone on their swap scheme, got it free on £20.month, seemed to good to be true and was.
Watch this video (http://www.youtube.com/watch?v=egVn2HvexhQ&feature=related). It may be the case that your HD2 needs to be sent for repair as it may just be defective.
Did you try running no task managers? I presume that it did not help.
Send it off and explain it's unusable in this state.
put stock new ROM on from Voda, a lot better by far. It must either be the ROM, the fix or Zoomer which is causing this. I wonder if anyone else has has this problem, i will log this on the ROM thread.
still having problems with this, not as bad as before, think i am going to send it back and cancel the contract, I think this phone although beautiful is not fit for purpose.

EVO Video of touch Screen Working

We have seen multiple videos of the screen grounding issue and there are many that say theirs does not have this problem. I have two evo's and they both have this issue. I would request those who are not haveing this issue to please post a video of their phone's touch screen working while not grounded. It is not that I think anyone is lying, I just wonder if maybe the issue is not being tested correctly. I just want to see someone's that does not have this issue so I can be confident that if I return mine I have a chance of receiving one with out this problem. So please anyone that does not havethis issue show video of the phone on a pillow or bed or multiple ungrounded surfaces with the phone not plugged in to anything and demonstrate the drawing app and also the pull down notification so I can see one that works. Thanks in advance!
It's not consistent, I hadn't noticed it until after I found out...I noticed a screen tap wasn't registered when I clearly pressed.
If you look at the demo images, it shows it does work, but doesn't always work...it's not consistent like it should be.
Yes I know that it is inconsistant... that is the issue. What I am asking for is to see someone's that consistently works while not grounded. I want to see if there is even one evo out there that has a touch screen that works as it should while not grounded. I believe that possibly those that say they dont have this screen issue may not understand what we are saying or are testing it differently.
mines having the issue hold it in my hand its fine lay it on the desk it messes up
I had never noticed this until I did as you suggested and use it on my pillow and sure enough I have the same issue. Not sure if it matters or not to me yet since I only notice it during this testing and not with every day use. Guess I will have to think about it!
Just tried this out on a pillow and for me it is just the top 1/3 of the screen that goes unresponsive. Tried it with the marketplace and i could scroll just fine through the list of apps at the bottom but from the Apps, Games, Downloads Tabs up, the screen is unresponsive.
irock1985 said:
Just tried this out on a pillow and for me it is just the top 1/3 of the screen that goes unresponsive. Tried it with the marketplace and i could scroll just fine through the list of apps at the bottom but from the Apps, Games, Downloads Tabs up, the screen is unresponsive.
Click to expand...
Click to collapse
I returned my first Evo because the screen in the portrait notification bar area was dead to touch.
My new unit has no issues whether lying flat on a desk or on a bed or pillow.
Mine is going back to Sprint a new one issued, just waiting for them to get the new batch in.
I called them yesterday about it and let them know it is being returned for a new one.
masbirdies said:
I returned my first Evo because the screen in the portrait notification bar area was dead to touch.
My new unit has no issues whether lying flat on a desk or on a bed or pillow.
Click to expand...
Click to collapse
can you let us know what hardware version you have...
masbirdies said:
I returned my first Evo because the screen in the portrait notification bar area was dead to touch.
My new unit has no issues whether lying flat on a desk or on a bed or pillow.
Click to expand...
Click to collapse
Do you have a video of this?
Up until just now I thought mine was perfectly fine but I just tried setting it on a pillow and doing it and lo and behold, it's a little glitchy at the top 3rd of the screen. It's perfectly fine laying flat on a disk or stack of papers though.
This doesn't seem like such an issue to me though. Not as much as the 30fps issue. When am I ever going to be lying my phone on a pillow using it? I always hold it in my hand anyway.
If the original poster wants to keep a tally: I have the problem and have the 1st hardware revision. I also confirm grounding the screen itself did no fix the issue (since I have the invisible shield). However, the problem was immediately resolved when I grounded the battery/phone negative terminal by running a wire from it to my bare finger. Touching the screen with my other hand/finger showed the issue had disappeared.
I posted a video on YouTube, but xda won't let me post links since I am unverified.
So I am coming to the conclusion that this grounding issue effects all evo's, seeing that not one person can produce a video of it working otherwise.
My evo works fine no matter what its on. I post a video later today.
Sent from my PC36100 using Tapatalk
Works
Mine works. I haven't seen an issue on any surface or lack of surface. The four other's I know who have the phone haven't had this issue either.
Mine works too, no grounding issues here. Why no video? Just don't feel the need to prove anything to you.
My EVO doesn't have this problem at all. I put it on a stryofoam plate and it was slightly less responsive, but still worked on all parts of the screen.
Mine doesn't have the screen grounding issues, but my colleague's does. I used the phones side by side and I see how the top 1/3 of his screen doesn't respond when laying flat. Mine works perfectly. Unfortunately I have bad light leakage above the buttons where his doesn't.
Nathan
No video necessary. Just do what I outlay in my post:
http://forum.xda-developers.com/showpost.php?p=6821306&postcount=102
Takes only a few minutes and you can see immediately and with real accuracy whether or not your phone is working properly.
Jye75 said:
Mine works too, no grounding issues here. Why no video? Just don't feel the need to prove anything to you.
Click to expand...
Click to collapse
I am asking for video simply to see if there are any phones out their that do not have this issue. If u don't want to help a fellow evo enthusiast out fine, but seeing how I have not seen a single video of the phone on an ungrounded surface which does not suffer from this issue j doubt you are testing yours the same way if it is not giving you the same result. That
Is why a video would be helpful. Because if yours indeed does not suffer from the problem then that means that there is chance that if I returned mine that I could get a working model. So if you want to help fellow forum members out... post a video.
Does anybody in here ever USE the kickstand?

Cant text right with keyboard open? Jumps around.

Recently (starting hours ago) When i try to text and use the physical keyboard it jumps around. It may scroll up the message or go over to send or things like that. I have taken my screen protector off (great, now i buy another one) and wiped it all down but it still does it.
I also reset it a few times.
Anyone else experiencing this?
I am getting the same thing. I think something is conducting on the capacitive screen as when I set the phone down or don't touch it at all, this never happens.
So should i exchange it?
I don't know. Like I said mine seems to do the same thing. I am not sure if it requires exchanging or if my fingers are brushing the side in a way they shouldn't. I'm open for suggestions myself
Hmm no mine just jumps up the text page like it scrolls the chat message up even if nothing is touching the screen.
Same thing here. Used to happen with my old myTouch but it was after a couple months of use. Uncool for it to happen on the G2 just after the 14 days have passed.
It is probably the capacitive pad thats not working right. Its probably detecting heat and scrolling on its own.
Yes get a replacement.
It's the touchpad. Move to a room with different lighting and try again.
I second the touchpad. It messes me up in the terminal by sending special characters.
SuperDave81 said:
It's the touchpad. Move to a room with different lighting and try again.
Click to expand...
Click to collapse
I did notice it was the light now. Still does it sometimes tho.
Thanks. What do you guys mean by captive ? Heat ?
Mine does this randomly too, and I've also concluded it's the trackpad. One time I went to my home screen while it was doing it and I could watch the selection scrolling from left to right.
Haven't figured out how to fix it, usually if I lock then unlock the phone it works fine.
Mine just started doing this today. I was sitting under the A/C and i noticed whenever i would try to swype during SMS text messaging, it would highlight "Send" in orange or it would highlight and scroll up the text thread. After I moved away from the A/C, it stopped doing this. my trackpad has been fine and I have never had any issues prior to this or even after moving away from the A/C vent.
This trackpad works on heat I would guess or like others have said, possibly electrical ground current which is probably by a grid I would imagine.
Thats kinda bad for you guys. I havent had this problem at all but seems like a trackpad problem. This happen to me on my g1 onces and that was a dirty trackball
Sent from my T-Mobile G2 using XDA App

Screen sticking

Anyone else having a weird, intermittent issue with the touch screen seemingly not working right
IE: I try to scroll and instead it makes a tap where my finger lands. Unlocking the screen doesn't work 50% of the time because the lockscreen will just lag out and I have to sleep/re-wake the device
This happens on stock and after i rooted to tiamats rom
XFreeRollerX said:
Anyone else having a weird, intermittent issue with the touch screen seemingly not working right
IE: I try to scroll and instead it makes a tap where my finger lands. Unlocking the screen doesn't work 50% of the time because the lockscreen will just lag out and I have to sleep/re-wake the device
This happens on stock and after i rooted to tiamats rom
Click to expand...
Click to collapse
I haven't experienced or heard of this before, at least as you're explaining it.
Is this accompanied by screen dimming? Did this start after the update to HC3.2?
okantomi said:
I haven't experienced or heard of this before, at least as you're explaining it.
Is this accompanied by screen dimming? Did this start after the update to HC3.2?
Click to expand...
Click to collapse
I use auto brightness, but I do not notice it changing during this happening
I got my XOOM with 3.2 on it
Your device may not be grounded. It's a common problem with touch screen devices. Does this happen when you're holding the device in your hands?
zehkaiser said:
Your device may not be grounded. It's a common problem with touch screen devices. Does this happen when you're holding the device in your hands?
Click to expand...
Click to collapse
I really don't know, let me do some testing and see what circumstances it is replicated under.
How would grounding be determined? Its not charging...
I do have it in a silicon/rubber case. Would that be a problem?
Just for the sake of satisfying my curiosity - if you are experiencing this issue while your Xoom is docked - try placing your fingers on the back of your Xoom and typing with your thumbs.
I am trying to resolve a similar issue that I only encounter while my Xoom is docked at one place in the world - my work. Nowhere else does it do this.
I have installed a power conditioner, with no effect. It happens whenever the power is plugged into the dock. If I use an external power supply it goes away (batteries). I did switch off the florescent lighting and it is better, so it may be EM related. especially since it is a *capacitive* screen.
I have also read of people with other capacitive touch screen devices have the same issue when it is not held in their hands.
Let me know either way.
Thanks,
Frans
XFreeRollerX said:
Anyone else having a weird, intermittent issue with the touch screen seemingly not working right
IE: I try to scroll and instead it makes a tap where my finger lands. Unlocking the screen doesn't work 50% of the time because the lockscreen will just lag out and I have to sleep/re-wake the device
This happens on stock and after i rooted to tiamats rom
Click to expand...
Click to collapse
I have seen issue on gtab where some roms/kernel where having issue with screen calibration, there was a calibration files that could be created in the root with the name calibration.ini and upon reboot it was fixed, I do not know if this is valid for a xoom tho...
with a few rom I had NO issue whatsoever and never reused the calibration...
fransdw said:
Just for the sake of satisfying my curiosity - if you are experiencing this issue while your Xoom is docked - try placing your fingers on the back of your Xoom and typing with your thumbs.
I am trying to resolve a similar issue that I only encounter while my Xoom is docked at one place in the world - my work. Nowhere else does it do this.
I have installed a power conditioner, with no effect. It happens whenever the power is plugged into the dock. If I use an external power supply it goes away (batteries). I did switch off the florescent lighting and it is better, so it may be EM related. especially since it is a *capacitive* screen.
I have also read of people with other capacitive touch screen devices have the same issue when it is not held in their hands.
Let me know either way.
Thanks,
Frans
Click to expand...
Click to collapse
Well you bring an interesting point. The device was in my hands but I was not actually touching it... It had a rubber sleeve on it.
I since got the Motorola hard case which has some areas exposed and I also disabled the lock screen, and I have not been able to replicate the problem at all.
The device was docked at one point, charging, and the problem showed up aagin (recalling from memory). The fix was to power off the screen and re-wake the device. This did involve touching it, so...maybe its an electrical thing?
P00r said:
I have seen issue on gtab where some roms/kernel where having issue with screen calibration, there was a calibration files that could be created in the root with the name calibration.ini and upon reboot it was fixed, I do not know if this is valid for a xoom tho...
with a few rom I had NO issue whatsoever and never reused the calibration...
Click to expand...
Click to collapse
I had this problem with the stock 3.2 ROM. I haven't done any calibration, and don't think I need to: it works perfectly majority of the time.
I'll reenable the lockscreen and try to replicate it again.
Okay I think I'm onto the problem
I opened the case just now, still lock screen disabled, pressed just the power button and the touchscreen was acting up again.. couldn't slide to scroll, but could tap/point only
I then put my thumb on the side, as if naturally holding it without a case, and it started working normally again without any kind of power cycle.
Thoughts?
Have you dropped or jarred your Xoom a lot? Look for threads I started in this forum, I have one that explains this issue and includes a fix. My Xoom is still working flawlessly. I'd link it but pre-calculus is about to start.
Elysian893 said:
Have you dropped or jarred your Xoom a lot? Look for threads I started in this forum, I have one that explains this issue and includes a fix. My Xoom is still working flawlessly. I'd link it but pre-calculus is about to start.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1068499
I bought the XOOM second hand from someone who claimed they hardly used it. Right now sitting infront of me, the bottom right, on the back edge, there is a small pressured crease as if it was dropped (looks like the corner of my phone when i dropped it on tile).
I personally have not dropepd it, but I throw this thing onto my bed all the time, it fell out of the dock onto my hard desk once, so yeah its been knocked around.
Will doing that mod void the warranty?
I found no warranty stickers or screws when I disassembled it. The back cover is made to slide down so that Moto can do the 4G upgrade, so I doubt they want to be fooling with that type of thing anyways. I can't say for certain that sticking a piece of foam in the back of your Xoom won't void the warranty, but I can say that it fixes the issue(which also could be covered by warranty if you can get someone to believe you've got the issue, I however could not, so I had to take it upon myself).
Alright
I just ran into the problem again playing a game.. seemed like the right half of my screen just stopped working intermittently. Kept playing and it returned to normal.
I may pop it open and try the foam thing. I'm pretty good with disassembling laptops.. I can't see this being much harder.

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