Compass & GPS - Xiaomi Redmi 2 Questions & Answers

The compass in the Redmi 2(2014818) doesn't work on "most" of the custom ROMs.The GPS is even terrible.
Signs:
1.the Google Maps should have a blue arrow pointing the orientation of the phone("yes the compass qs tile can show direction after calibration.
2.I depend on GPS Status app to obtain the position,which is completely useless (no gps ,no orientation(level sort of thing))
3.GPS takes to long to lock on(tried almost all gps.conf servers but getting the same results.
Dev's,kindly look into these as I roam outdoors too much and it feels weird sitting in the sun waiting for a GPS lock

GeorZ said:
The compass in the Redmi 2(2014818) doesn't work on "most" of the custom ROMs.The GPS is even terrible.
Signs:
1.the Google Maps should have a blue arrow pointing the orientation of the phone("yes the compass qs tile can show direction after calibration.
2.I depend on GPS Status app to obtain the position,which is completely useless (no gps ,no orientation(level sort of thing))
3.GPS takes to long to lock on(tried almost all gps.conf servers but getting the same results.
Dev's,kindly look into these as I roam outdoors too much and it feels weird sitting in the sun waiting for a GPS lock
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Same problem any suggestions?

Related

camera doesn't work with GPS enabled

Strange behavior started today. When I have the GPS turned on, and the location featured on in the camera, then the camera seems to stutter. In other words, the image stops-and-starts and the "buttons" are unresponsive.
When I turn of the location feature in the camera, then the image is fluid and responsive.
Any ideas?
Update...
Still having problems. I narrowed it down to the gps being the problem, not the camera. When using navigation or maps the screen flickers/refreshes constantly, as it was when using the camera app with “location " enabled.
So, something is making the gps refresh or stutter, any ideas? I hope it's not hardware
Sent from my Xoom using Tapatalk

Issues and initial thoughts - Gyroscope and Light sensors not working?

Well the good thing is, I already got the Galaxy Note, yeah!
I have a couple of findings which I would like to get the
opinion on from other Galaxy Note users.
My packaging states "BLUE". But the device and back cover is all black?
Does anyone have a blue one, or know why it is called blue?
If I go under Settings / Display and try to calibarte the gyroscope
it seems that it does not work at all. The big calibration ball stays always in
the middle.
Also the setting for automatic brightness control seems not to work.
The display brightness does not change.
I also cross checked this with AndroSensor https://market.android.com/details?id=com.fivasim.androsensor
Which shows constant 10.0 lux for light sensor
and 0.00x readings for gyroscope. Strange
Can someone else verify whether this is a common issue, or
whether it is only my Note :-(
Btw. does anyone know how to verify whether the GNote can use Glonass?
I did a calibration and it moved around a bit and then stopped in the middle and said that it had completed.
As for screen brightness, if I put a tick in the box for 'Auto' it makes the screen quite a bit dimmer. Take the tick out of the box and I can adjust the brightness from dim to full without a problem.
So, sounds like you may have a dodgy one.
In terms of the light sensor. It is usuall that it dims when you activate automatic control.
The question is, does the brightness change automatically while you have it active.
E.g. Be in a bright room and turn off the light. The screen should light up. Turn the light on and the screen should dim again. Does yours do that?
Take your sim out of the phone or turn mobile data off and try to get a GPS signal on maps or navigation. Should tell you if Glonass is working. Someone already tested and said it works fine.
Greatbape said:
Take your sim out of the phone or turn mobile data off and try to get a GPS signal on maps or navigation. Should tell you if Glonass is working. Someone already tested and said it works fine.
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Why/How does that show that Glonass works?
My understanding is that it's supposed to be normal GPS and not AGPS. Navigation in most android phones needs data to be accurate. Not sure if that's the case with glonass. This explains glonass pretty well if anyone is unfamiliar with it.
http://www.oxts.com/default.asp?pageRef=134
Yerry said:
In terms of the light sensor. It is usuall that it dims when you activate automatic control.
The question is, does the brightness change automatically while you have it active.
E.g. Be in a bright room and turn off the light. The screen should light up. Turn the light on and the screen should dim again. Does yours do that?
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I think you have that exactly backwards. In a dim room the screen should dull down so it doesn't blind you, and in a bright room it should brighten up so it's visible.
Greatbape said:
My understanding is that it's supposed to be normal GPS and not AGPS. Navigation in most android phones needs data to be accurate. Not sure if that's the case with glonass. This explains glonass pretty well if anyone is unfamiliar with it.
http://www.oxts.com/default.asp?pageRef=134
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I just got done reading the specs, it says it has GPS withwith AGPS support. Sounds like a standard GPS.
reinbeau said:
I just got done reading the specs, it says it has GPS withwith AGPS support. Sounds like a standard GPS.
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Don't forget the Note (like the Galaxy Nexus) also has a 'Barometer' to aid GPS positional data.
As a Barometer also predicts height it will eliminate error margins for the Z-axis with GPS, which on other phones can be quite high.
reinbeau said:
I think you have that exactly backwards. In a dim room the screen should dull down so it doesn't blind you, and in a bright room it should brighten up so it's visible.
I just got done reading the specs, it says it has GPS withwith AGPS support. Sounds like a standard GPS.
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Yes I wrote it backwards. And even more strange it suddenly works on Note.
Even though it is by far not as smooth line on a Xperia X8
In terms of GPS, I still dont know how to verify whether Glonass is used or not.
But I am getting 12 satelites used indoors and 16 outdoors. Plus on the box it states GPS/Glonass.
So I guess it uses Glonass. Which is bretty cool.
Remaining issue for me is gyroscope which seems not to work based on the calibration screen.
My findings with androsense and the light sensor are as follows
real bright light 1000 lux (right next to the light bulb)
normal room light 100 lux
dim room 10 lux
it seems that the current light sensor only has low medium and high settings. with no scaling in between.
i dont know if this is hardware or software related. someone else will have to give an answer on that, but it would make sense why a lot of other people are complaining about the auto dim working so badly. if someone could find a way to give the scaling a little higher resolution, it would prolly make the auto brightness work a lot better.
Mi also thought the ball not moving during calibration was a problem....but it works fine....i installed asphalt 6....went to the garage....the garage can be explored using the gyroscope.....
Install Asphalt 6....check it out....I think its not available for the note in the Market....but its available for free in Samsung Apps....its awesome...
hope this helps..

Location automatic high precision

Hi
Whenever I turn location on, it automatically jumps into high precision.
Most of the time I use GPS only, but it's kinda annoying becouse it jumps into high precision the moment I turn it on.. How to turn this of so it remembers my choice of GPS only?
Been using my phone as navigation since my new ride doesn't have built in sat nav
are you using a custom rom which has a gps fix or config associated to it?
A|ex said:
are you using a custom rom which has a gps fix or config associated to it?
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Click to collapse
No I'm on stock

Available Sensors in Honor 5X

Honor 5X has the following sensors.
Accelerometer- For auto rotate feature, the accelerometer is one of the most common sensors one can find in a smartphone. It checks and analyze if a phone is ideal or is in motion. It calculates the orientation of your smartphone along 3 axes. Information gathered from Accelerometer is used by apps or OS to switch the orientation of the screen between portrait or landscape as per your movement. Any app, smartphone feature or game that reacts to you by tilting your phone depends on Accelerometer data.
Ambient Light Sensor- For adjusting the brightness automatically, the light sensor comes into the picture to measure the brightness of ambient light. It sends its reading to the phone’s brain(processor) which as per the operating system’s algorithm adjusts display’s luminosity. If the place is dark and the dusky phone automatically dims the screen brightness so that it won’t affect user’s eyes. On the other hand, under direct sunlight phone maximizes brightness level.
Proximity Sensor- The Proximity sensor is another common sensor present in every smartphone. It comes equipped with an infrared LED and an IR light detector. Proximity sensor radiates a beam of infrared light which gets reflected from the nearby object and this reflection is registered by IR scanner. Ever noticed how your screen goes off when you are on a call and your phone is near to your ears? Because of this sensor so that it allows you to have an uninterrupted calling experience because screen is off and you don’t need to bother about call getting disconnected accidentally.
Digital Compass or Magnetometer- ever ran into situation at unknown/new location and want to know the direction? As the name implies Magnetometer is used to sense Magnet fields and provide information defining your phone’s orientation with respect to it. All compass apps use Magnetometer sensor to detect your physical direction on the map. Due to this very reason our digital map rotates automatically in the same direction when we take a turn while driving.
Fingerprint Sensor- Do I really need to explain this? well yeah I certainly can quickly. The last but certainly not the least in the list is a fingerprint sensor. The fingerprint sensor is currently trending in the smartphone industry. The fingerprint sensor proves handy if you carry lots of important details in your smart device. It senses the ridges of the finger skin. Fingerprint sensors can be used to conveniently unlock the device, app lock, calling, camera click, muting alarms and many more.
Sadly it does not have Gyroscope So can't do VR related things and games like Pokemon Go

A2017U GPS Problem

Hi all. I recorded a video. You can see problem on video. (GPS not closing from notification panel.) the problem continues from the beginning. Same on all versions.
https://youtu.be/caAieYAeg50
WesTD said:
Hi all. I recorded a video. You can see problem on video. (GPS not closing from notification panel.) the problem continues from the beginning. Same on all versions.
https://youtu.be/caAieYAeg50
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Click to collapse
This has always been the case for me (A2017G). It goes from high accuracy to battery saving when using the notification bar shortcut. Has been like this on all versions.
I have created a shortcut on my home screen to access location settings to fully turn it off. Certainly not ideal of course.
joaste said:
This has always been the case for me (A2017G). It goes from high accuracy to battery saving when using the notification bar shortcut. Has been like this on all versions.
I have created a shortcut on my home screen to access location settings to fully turn it off. Certainly not ideal of course.
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it is so annoying. it is a bug and should be fixed I think
Because you're toggling "GPS." Gps is not the same as location. Idk why ZTE went with a GPS quick toggle and not a "Location" one.
I leave mine on all the time. I want it to keep location updated for when I use the GPS app rather than trying to get it to update when in a hurry.
@ joaste, hi, which mode of battery saving are you in? In the extremity mode the GPS cannot turn on.

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