Develop Bugs

[Q] Calibrate Gyrometer?

I just picked up the GNex Friday and have noticed sometimes the screen doesn't rotate properly. I thought nothing of it until this morning when I had to shake it a few times to come out of portrait mode. I then went on to play some Raging Thunder (car racing game), and my car just makes hard lefts and crashes.
So I'm thinking there is something up with my gyrometer. I downloaded "Gyro 2D Visualizer" and can can confirm that the phone is off quite a bit.
Here is a picture of it on a flat surface, you can see how much it's off:
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Anyone else have this issue? Is this bad hardware or is there a fix?
Thanks!

After your post I went to take a look with GPS Status and you were right. It's a bit off. I calibrated it right away and should be correct now.
Weird they did not add a calibrator in ICS.

Would you mind sharing how you calibrated? I have GPS Status, but I'm not sure what it wants me to do when it says "rotate your device 1-2 times around each of its 3 axes".
Also can you verify that your calibration remains after a reboot?

What you're talking about is the compass caibration. Do the following
end over end (flip); hold it with the screen up and flip it away from you making a full rotation
side over side (roll); hold it with the screen up and move it from left to right so the screen rotates left, down, up right
screen-up rotation (spin); put it on a table and spin it around
Taken from: http://androidforums.com/143593-post3.html
The 2nd one is putting your phone on the table and the pressing calibration.
Hope this helps

Ah ok, sorry for the confusion. I found the other option for "pitch and roll".
Unfortunately, loading the game yielded the same results. I tried to play Doodle Jump and I had to tilt the phone to the left to get him to bounce straight up and down.

I downloaded the gps status app and mine seemed right on, however does anyone know if this app also shows you what the barometer is reading?

Aflac01 said:
I downloaded the gps status app and mine seemed right on, however does anyone know if this app also shows you what the barometer is reading?
Click to expand...
Click to collapse
AndroSensor is the only one I know of so far.

Its good to see that you guy's have solved it for your selfs.
This was one of the topics google showed me when i started having the same problem.
So now i have made a quick tutorial on how to calibrate your nexus 7.
I hope this helps many of you guy's in the near future.
Video: How to calibrate your Nexus 7
Site/Text based tut:VALKYRIE|Android Blogpost.

Partial "crashed" screen for a split second - soft- or hardware issue?

I've been using my One X for several weeks now (I think the hboot date is around early June so it's not one of the early batches) and so far didn't have any problem except for the following:
Twice, first a few weeks ago and the second time last night I saw some "artifacts". I'm not quite sure but I think different parts of the screen were affected each time. What happens is that everything is shown how it's supposed to be except for a 30%-40% area which looks a little like a computer screen right after a software/driver crash can look like. Without doing anything, it disappeared each time after less than a second.
I wasn't able to take a screenshot but the following photo shows how it roughly looked like. In my case, there were only lines and cubes in black, white and bright green instead of the more "fuzzy" parts shown in the photo.
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Is this a driver issue? A lose connection? A display fault? I was close to unlocking my phone but with this having happened twice so far I wonder whether I should wait a little longer...
PS: It's probably unrelated, but like a minute later I encountered some "keypad ghosting" via swiftkey, i.e. I was pressing some keys on the keyboard and it was inserting several different ones each time. I do suppose that it's a software glitch, though, as I tried the stock keyboard another minute later and this worked fine.

If you can still swap your device with your retailer I would do that, just to be on the save side...

did u update to latest already?
if yes,
was it there before u updated..??
it doesn't look like a hardware issue

Did it act like this: http://www.youtube.com/watch?v=HIY0_Hy2_mA ?

CAPSGUY said:
Did it act like this: http://www.youtube.com/watch?v=HIY0_Hy2_mA ?
Click to expand...
Click to collapse
No, everything was where it was supposed to be and the artifacts faded away after probably less than a second.
I still have the latest stock Rom, haven't updated yet. I do think it's been more of a software glitch but I couldn't find information on here or anywhere else which would state a similar problem. Which is good?
Sent from my HTC One X using xda app-developers app

[SOLVED]Auto-rotate too sensitive on right side

Hello,
My N7100's a little too sensitive to rotation on the right. This just started happening 2 days ago, out of the blue. For the left side, I have to rotate my phone properly into landscape mode but to the right, even if it is tilted 1/8th of an inch e.g. while picking phone up, switching hands or left handed operation, it will suddenly rotate to landscape.
I have tried calibrating the gyroscope some 10 times but to no avail.
Any solution to this?
Thanks!
SOLVED: Read post #8

No one?

It's a bug in samsung touchwiz (4.1.2)..I have it too only solution I got was to use ultimate rotation control it will help or else if you can wait for samsung to fix it in 4.2.2
Here's the app link I hope it helps
https://play.google.com/store/apps/details?id=nl.fameit.rotate
Sent from my GT-N7100 using xda premium

@mufaddalezzi Thank you for your reply. However, my problem has not been solved by the app since it doesnt adjust the sensor.
My problem:
Phone thinks its tilted to the right while it is only 5-6 degrees to the right. I cant play games that require motion sensing such as Temple run because the character is running to the right with the phone being perfectly straight.
XDA, i need your help!
P.s: i tried restoring to an older nandroid backup from TWRP but to no avail

Tried. Calibration from the service menu at *#0*# under Sensors and again, no help. This wathe post that fixedit for someone else
http://forum.xda-developers.com/showpost.php?p=37539286&postcount=6
Heres a photo
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Maybe it's a hardware failure(accelerometer or gyroscope)..that means you might need to change/replace it
Sent from my GT-N7100 using Tapatalk 2

Sure? I am not covered by warranty and would hate to sell my phone the gyro works fine its just that the calibration of it is wrong, the phone thinks it is tilted slightly to the right

I figured it out. For anyone else with this problem:
1) Boot phone into safe mode (Turn phone off and turn it back on. As soon as animation starts press and hold volume down button - It should say SAFE MODE in the lower left corner of the screen when turned on)
2) Reboot phone
Voila!
Mystery solved. Case closed.

Cardboard- getting double vision?

Hi,
The cardboard still works on games which have their native implementation of side-by side graphics. It also worked on apps which were using cardboard v1 sdk. The cardboard template I used to make mine was http://pcpress.rs/download/MojAndroid/print_yourself.pdf
Now, in cardboard v2 apps, the left and right images are way apart from each other, so, its impossible for human eyes to focus.
Here is a screenshot :
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So, is there any way to make cardboard apps work on this device?

an update, I experimented with https://www.google.com/get/cardboard/viewerprofilegenerator/ and this is what i came up best with:
Its a bit blurry/pixelated, but the ppi of our phone is way too low for stuffs like vr. Might not work for your eyes and lens.

arnab321 said:
an update, I experimented with https://www.google.com/get/cardboard/viewerprofilegenerator/ and this is what i came up best with:
Its a bit blurry/pixelated, but the ppi of our phone is way too low for stuffs like vr. Might not work for your eyes and lens.
Click to expand...
Click to collapse
Thanku soo much that worked well till now i was using a custom viewer profile made for one plus u can find it in the link below .... that also solved the issue of double vision but still its little blurry i guess its the matter of ppi proper setting of ppi may solve the issue i am not able to create a custom viewer profile so it will be really helpful if someone finds the fix..... thanx again
https://forums.oneplus.net/attachments/qr_viewer_profile-1-png.323621/

Hi guys...
Had this working fine before and now it's screwie..
Gear VR works fine.
Google Cardboard when starting , has the inter-lense adjusted to far apart. The two images are seperated to much.
Is there a way to start from scratch (by deleting some config files?)
The left and right displayed image need to come together / closer.
Ive deleted cache/data for Cardboard and uninstalled / reinstalled
Anyone have any ideas ?

Proximity sensor ALWAYS ON ?

Hi everyone. I recently bought a Xiaomi Mi Max 3, my first Xiaomi phone. It got approximately 3 major updates and is now running MIUI Global 10.3.2.0 Stable. The other day I tried taking a photo of my phone and noticed a white dot next to the front facing camera. I tried to take another photo and noticed a constantly blinking light from the same spot. It's not the notification light, that's on the left side and is noticeable with the naked eye. This one however is on the right side (next to the camera) and is not visible to the naked eye.
Upon further research I found out that it might be what I initially thought it was; the proximity sensor. However from previous experience with my Samsung Galaxy S5 I've seen that the proximity sensor is only on during phone calls or if air gestures was on. But on my Mi Max 3 it's always on. The moment I turn the phone on it starts lighting up. I don't have auto brightness/face unlock on, and also tried to turn the proximity sensor off in call settings. But no luck. It even lights up when the screen is locked/off. I don't know if there's any settings causing this, but I tried turning almost everything proximity related off (pocket mode etc.) I have seen that other Xiaomi users have been having this issue too. I tried CIT and the proximity sensor seems to be working (0 to 5cm) but fails to calibrate.
So I had a few questions
1) Is this normal? Is it normal for the proximity sensor to be always on? I highly doubt it
2) Any way to fix this?
3) Will it consume a significant amount of battery power?
*If this really is an issue and not normal, I hope it'll get fixed with a software update because I don't think it's a hardware issue. I've read that people were having similar issues after update here
I don't know if the problem existed before the updates; noticed the light recently only!
Thanks
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