Gravity (or Magnetic) Sensor out of calibration - Galaxy S 4 Q&A, Help & Troubleshooting

When I hold my phone vertical (portrait or landscape) to take panorama or photosphere photos it's out of alignment and I have to downward it to the earth to adjust the horizon line to the middle of screen! In another word if I hold my phone in ~80° its sensor behave like it is in 90°. Attached photos shows the problem. I have rooted my device with official 4.4.2. I couldn't find any helpful guide about how to initialize or calibrate accelerometer or G-Sensor. rotating phone in 8 path, rotating around all 3 axises, restarting device didn't help.
Please help me how to solve this issue. I don't want to reset factory device right now. I've access to all system files if needed. Thanks

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WP7 Omnia 7 Accelerometer Possible Fix

This is for Samsung Omnia 7 if you have used the Diag app/code to mess about with the settings. I had screwed my rotation by changing some settings. Tried a reset via code but that didn't work. In the end I used code *#2580# to enter integrity control and ensured it was at '1' (on), then use code *#0*# to enter LCD test, lay the phone flat and press the 'CAL' button. It returned 'true' and now my accelerometer works again.
Hope this is actually a fix and it helps someone out. I have noticed a few people lost the rotation on their Omnia 7's. This will probably work for Samsung Focus too. If this does fix your problem let us all know so this can help others too.
Yep - that CAL is calibrate, I imagine. You can also do it with the "Level" application from Microsoft (spirit level thing) if you don't fancy the diag codes.
Diagnostics / Accelerometer (+ fix)
Yes, if you play around in the diagnostics - BE CAREFUL!
To enter diagnostics on your Samsung (confirmed for Omnia 7) enter ##634# and press "call"
Then type the following for the following services:
*#0*# Various diagnostic settings incl accelerometer, compass, screen colour
*#2*# Detailed battery info (incl. charge to nearest 1%)
*#3*# Screen brightness
Be carefull if you choose to calebrate the accelerometer as it will muck up your auto rotation if the phone is incorrectly positioned.
To reset the rotation do the following:
- Ensure the yellow flowers picture is upright (aligned with the flowers towards the top of the phone)
- Lay the phone down on a true horizontal flat surface (XYZ values do not matter for this) ensuring the flowers remain upright
- Touch the "Cal" button. If you get "True Return" you have reset. If "false", try again in slightly different positions until it works.
wt7881 said:
Yes, if you play around in the diagnostics - BE CAREFUL!
To enter diagnostics on your Samsung (confirmed for Omnia 7) enter ##634# and press "call"
Then type the following for the following services:
*#0*# Various diagnostic settings incl accelerometer, compass, screen colour
*#2*# Detailed battery info (incl. charge to nearest 1%)
*#3*# Screen brightness
Be carefull if you choose to calebrate the accelerometer as it will muck up your auto rotation if the phone is incorrectly positioned.
To reset the rotation do the following:
- Ensure the yellow flowers picture is upright (aligned with the flowers towards the top of the phone)
- Lay the phone down on a true horizontal flat surface (XYZ values do not matter for this) ensuring the flowers remain upright
- Touch the "Cal" button. If you get "True Return" you have reset. If "false", try again in slightly different positions until it works.
Click to expand...
Click to collapse
Thank you !
I am currently experience another issue since I launched that app.
The start button doesn't turn on the display anymore,
maybe I'm getting crazy but I think holding that button was indeed turning the display on.
Actually I did miss my calibration but thanks to your help, I fixed,
do you think the Start button issue could be related to that tool as well ?
Thank you
Would this solve the slow auto rotation of the UI?
I had the HD7 and the auto rotation on the Omnia seems to damn slower and less responive than it was on the HD7
aybe0 said:
Thank you !
I am currently experience another issue since I launched that app.
The start button doesn't turn on the display anymore,
maybe I'm getting crazy but I think holding that button was indeed turning the display on.
Actually I did miss my calibration but thanks to your help, I fixed,
do you think the Start button issue could be related to that tool as well ?
Thank you
Click to expand...
Click to collapse
I have the exact same problem for a few days now, don't remember what could have been the setting for it.
Start button doesn't turn on the display anymore. I want that back! How can I get the start button to default?
Thx.
I have just reset my phone to factory defaults : Parameters, About, Reset ...
Notice that resetting will erase everything, I've lost my IE favorites by the way ...
Everything is back, Start button as well ...
In fact I did play too much with the settings, it was turning the screen off
as soon as I was making a call, the only way to turn it back on was the called one to end the call ...
Tried to fix (lol) proximity and lights settings but nothing ...
I think I'll just leave the Diagnostics app. for now, too dangerous
there seems to be an option to do that as well from the app.
But will it erase your data ? I don't know ...
aybe0 said:
I have just reset my phone to factory defaults : Parameters, About, Reset ...
Notice that resetting will erase everything, I've lost my IE favorites by the way ...
Everything is back, Start button as well ...
In fact I did play too much with the settings, it was turning the screen off
as soon as I was making a call, the only way to turn it back on was the called one to end the call ...
Tried to fix (lol) proximity and lights settings but nothing ...
I think I'll just leave the Diagnostics app. for now, too dangerous
there seems to be an option to do that as well from the app.
But will it erase your data ? I don't know ...
Click to expand...
Click to collapse
My proximity sensor went crazy too. The fix is to go to diagnostics mode (google for it) and register a bit larger proximity value as a default. I used my hand to block the sensor. On my phone the absolute minimum seemed to be 3, which made the phone unusable. Something in the range of 10-20 seemed to be the most useful compromise. You may need to experiment a bit to get a suitable value. This way you don't have to reset the entire phone.
I still wonder what the default proximity value is... if anyone knows, please reply.
I have Samsung Focus 1.3 Mango 7720, but i don't see "cal" in the settings of the Proximity?
can you help?
Thanks

Omnia 7: cannot calibrate accelerometer in diagonosis mode (ver. 628)

Hello everyone,
I have searched far an nigh - - , but it seems my question has only been addressed once and there the answer had to do with unlocking or rooting the phone. I don't want do that just yet. I can still send it in for repair, so I'd rather try to exhaust the available legal options first.
So, here goes my problem: Autorotation doesn't work properly. It hardly switches to landscape mode and cannot be bothered to return to portrait mode, if I don't close and reopen the app. The level and the accelerometer app confirm this problem. I'm on a T-Mobile (in German, that's Telekom) branded Omnia 7 running 7.10.8773. It seems the accelerometer is off or broken and there is no way to calibrate it. In the level app, when putting the phone flat on its back the white dot indicating the position is in the bottom right. I'd have to pick it up and hold it in front of me in a tilted position to center the white dot. Calibrating it within the app is only possible in said tilted position and in diagnosis mode, there is no "cal" button, only an exit button. The accelerometer app allows for calibration with the phone flat on the table; however, the calibration is not applied to the phone's sensor or the app: when I close it and then reopen it, the calibration is gone. - What can I do about this? I.e. can I do anything about this? I'd like to avoid an RMA.
Please help!
Thanks in advance,
Thomas

[Q] Nexus 10 accelerometer problem

Hi,
I've got a problem with the accelerometer of my nexus 10, when I'm in automatic rotation mode the devise doesn't rotate automatiquely when I rotate it. And when an application force the portrait mode I have to desactivate the automatic rotation mode to go back in landscape mode.
Thanks in advance
Cyril
I believe GPS Status & Toolbox can re-calibrate the accelerometer (along with Compass, and get AGPS data), might be worth looking into
Fixed my screen orientation problem.
I spent a good four hours or so trying to figure out why my screen orientation wasn't working properly even after a reboot and boot into safe mode. I could only get one portrait with buttons on bottom and had to rotate an extra 30 degrees or less than 1 degree to cause it to flip between landscape orientations. Loaded up Google Skymaps and the Horizon was off by about 30 degrees in landscape, but fine in portrait. First went and downloaded Android Sensor Box and found the X-axis would run up to +15.5 and only -3.7. Anyways the calibration reset in GPS Status & Tool Box 4.0.1 fixed it immediately.
Awesome call on that program espionage724 would have never found it if I didn't find this thread and your post.
Edit it came back although a combination of running the program and hitting the lock button seemed to fix it. This time the axis offset was reversed though. Probably an operating system bug and only seemed to come back after I attached an OTG USB cable so =/ ?
Same problem here
I have the same problem with a new Nexus 10. The rotation did not work in any application at any time. With the Sensor Toolbox, I see that the sensor is working to some extend. Recalibrating with the GPS Status did not change anything.
Is this a hardware defect, so that I should send mine back to Google?
If you happen to get the orientation working, I'd be happy if you share it with me.

[Q] i9505 Proximity Sensor problem

Hi everyone,
since a few weeks i got problems with the proximity sensor on my i9505
First i thought that it is software related but after clean installing a new ROM yesterday i see that the problem still exists...
It happens when the proximity sensor should react, when i am close to it, it reacts and activates but the problem is that it wont turn off again...
i dialed the test menu and went to sensor test, as i see the sensor sees the distance normaly, when i bring it close and when i move it away i see that the numbers react how they should, however after the sensor is once trigerred with a close object it starts to vibrate and the screen turns green (how it should), but after moving away it registers the distance but it won´t stop to vibrate and turn off :/
Anyone who knows what could be wrong?
I have to mention that the display was changed once (because of the glass broke) but it was working normal for months...
EDIT: after testing again i see that the sensor sees the distance just as it should the only problem is that once that the sensor action is triggered to 1.0 from 0.0 it stays at 1.0 no matter if i remove my hand...

Gyroscopic Issue - Rotation inverted [HELP]

Hello my dearest friends, instead of auto rotation not working, I'm having a different issue on this S4, everytime I put the phone in landscape mode, it turns upside down from the angle I turned (eg. I turn the phone 270º and it turns the screen 90º). When I rotate to landscape mode, the only way to return to 0º is turning the phone upside down (like if 0º is on the top of the earphone speaker, not on the bottom)
I thinks this is related to Gyroscope sensor with problem, but since it's still working, but just can't rotate correctly, I was thinking, SINCE I'M ROOTED on LOLLIPOP, if isn't there a workaround for this issue by inverting the Gyroscopic sensors using xposed module or some other software (I even tried to edit build.prop but the line supposed to be there wasn't found)
Thanks in advance!

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