[Q] Help with compass and magnetic field - One (M8) Q&A, Help & Troubleshooting

hello
i have rooted 4.4.3 with stock version
i recently noticed that thw compass doesn't show the right north. i think its from day one. i checked and according to phone tester i have magnetic field sensor but every app that use it always get zero data.. did someone faced fhis problem before?
thank you

Having the same issue...Just received my warranty replacement M8. The old one was 4.4.2 and rooted. This one is 4.4.3, unrooted, and any compass apps read 0uT magnetic field.
Worth noting: switched to the ART architecture a few days ago. I never did see if it worked before I switched. Are you on ART or Dalvik? Also, I have this heavy screen protector on it...it's like a sheet of tempered glass. I'm afraid to take it off because it was so tough to get on perfectly. Do you have one too?
EDIT: Just tested my sensor using the #*#*3424*#*# or whatever it is...sensor works fine. When I place a strong magnet over my screen, it turns off (as it should, thanks to DotView). However even with that powerful magnet right next to my phone, it reads 0uT

Related

Fix for multi touch issues

I had the same problems with multi touch as others have stated before, I also posted this fix in the other thread but that one turned out to be more about the wifi issues which I do not have.
About a week ago I installed the Rootzboat ROM on my phone, and after that my multi touch issues went away. I could now play shooting games! But, at the same time I also put an otterbox case on it and didn't think anything of it. Yesterday i took the case off while I was playing a game and the issues reappeared--I could no longer use both the right and left corners for input. I turned the screen off and put the case back on, the issue disappeared once again. So, if you're having the problem try putting an otterbox or some other thick screen protector and case on it.
I think the solution comes from the thick plastic screen protector which comes attached to the case (and is not actually applied to the screen) is lowering the capacitance readings for the phone (probably because of the distance). So the solution may lie in the driver software. Anyways just my 2 cents.

[Q] S-pen dead spot on screen

hi all
i have a strange problem on my 1 day old note2
i have been playing with all the feature and have discovered a sort of dead area when using the pen
load up snote/memo or anything else using the pen
then on the right hand side when using the pen there is a square about 1cm in size that does not detect the pen when applying NORMAL pressure, using my finger its fine.. then to make it more odd if i apply i little more pressure it picks up the pen.. when applying pressure the line being drawn is more bold everywhere until i draw over the dead spot when it becomes a lighter line ie nor picking up the same pressure,,
i hope my very bad explanation is understood lol..
phone is 1 day old and i'm not sure if i have a fault or a bug
firmware is stock thailand
gt-n7100
4.1.1
baseband n7100dxalj1
build jroo3c.n7100xxalj3
Do you have a case on?
Zamizzle said:
Do you have a case on?
Click to expand...
Click to collapse
yes.. small unobtrusive one
just tested without case and no problem
confused
is there a thread about this issue .. looked but cannot see
Does your case have a magnet on the side of where your S-Pen does not work?
It happened with me as well.
Zamizzle said:
Does your case have a magnet on the side of where your S-Pen does not work?
It happened with me as well.
Click to expand...
Click to collapse
yup.. thats the problem
having more info in hand google was my friend
:Apprarantly this problem occurs if you use a case with a magnet. The area will correspond with the location of the magnet.Samsung’s user manual clearly states not to use it with cases that have magnets. People have also commented on how this effects the internal compass too. Prolonged exposure will apparently result in the internals getting magnetized – no way out then!
People have reported that even after removing the magnetic case, it take between 24-48 hours for the effects to disappear. .!:
very worrying
i wonder if there is a way to block the magnet in the case from effecting the note..
otherwise its throw out the new case

[S Pen ISSUE] Take caution when buying magnetic cases.

I purchased,
http://www.ebay.ca/itm/NEW-Three-St...ios&hash=item4abc8f0ae3&_uhb=1#ht_4861wt_1037
case for my SG-N8010 and everything seemed to be fine until i noticed a S-Pen disorientation near the area where the magnet was. However, using my finger seemed perfectly fine. At first I thought it would be some software issue since I upgraded it to 4.1.1 (http://forum.xda-developers.com/showthread.php?t=1925720) but after hours of searching the net for a possible solution I gave up. So a buddy of mine wanted to see it out of its case today and I noticed that the s pen was working perfectly when he was playing with it. I did try this later on and figured out that the problem did reside in the magnets being in my case.
SO voila! If you buy a magnetic case and face a s pen disorientation problem, just get another non magnetic case as it is frustrating at times when you are at lectures and constantly have to avoid a certain part of the screen to write on.
Please note I am no expert in Android, Im just the typical person who can install roms/kernals/multiwindow apps etc.
This problem may not affect you but it did on my SG-N8010.
Cheers :laugh:
ajwadi said:
I purchased,
http://www.ebay.ca/itm/NEW-Three-St...ios&hash=item4abc8f0ae3&_uhb=1#ht_4861wt_1037
case for my SG-N8010 and everything seemed to be fine until i noticed a S-Pen disorientation near the area where the magnet was. However, using my finger seemed perfectly fine. At first I thought it would be some software issue since I upgraded it to 4.1.1 (http://forum.xda-developers.com/showthread.php?t=1925720) but after hours of searching the net for a possible solution I gave up. So a buddy of mine wanted to see it out of its case today and I noticed that the s pen was working perfectly when he was playing with it. I did try this later on and figured out that the problem did reside in the magnets being in my case.
SO voila! If you buy a magnetic case and face a s pen disorientation problem, just get another non magnetic case as it is frustrating at times when you are at lectures and constantly have to avoid a certain part of the screen to write on.
Please note I am no expert in Android, Im just the typical person who can install roms/kernals/multiwindow apps etc.
This problem may not affect you but it did on my SG-N8010.
Cheers :laugh:
Click to expand...
Click to collapse
I figure this out back in the days of the g1 I actually returned 2 of them because the compass got all screwy. Since then I avoid magnets near my electronics like the plague.
widto08 said:
I figure this out back in the days of the g1 I actually returned 2 of them because the compass got all screwy. Since then I avoid magnets near my electronics like the plague.
Click to expand...
Click to collapse
I too had this concern when buying a case. Ive had the official bookcover case for about 2 months now and every once in a while the s-pen will require extra force to register. This only happens above the magnets and with the case on. Once i take the case off and put it back on, everything is fine. It doesn't happen enough to bother me. Hopefully it isnt a huge issue.
With my regular Wacom tablets (same technology), I have this issue if I sit my laptop over the keyboard and I notice the CPU interferes with it...
Sometimes my phone as well will cause problems. Because there is a signal between the pen and the tablet (the tablet screen in this case), that really doesn't surprise me...
Well I have been using a case with magnet, not really a big user of SPEN but whatever little I used for did not see any issue.
Hi,
I've just check.
I write a pattern of flat line all over the screen in Quill program, and have detect two areas where the spen don't works.
I use a no original book like case.
Once released the tablet from the case, the two areas works fine.

[Q] Pulse and SpO2 sensor working?

I tried both last night and they never got a read. I tried multiple pressures too.
Forgetfull said:
I tried both last night and they never got a read. I tried multiple pressures too.
Click to expand...
Click to collapse
I was able to have three people get the Pulse working and the pedometer is counting although not as accurate as a regular step counter.
Just got the spO2 working also, read a 96%
My sp02 Meter didn't read until today. ()
My bpm is working, has been since I got it in the mail yesterday. BUT it is notably finicky.
And the same goes for the sp02 reader.
I haven't been able to get an accurate read from anything with my Spigen btw.
*I haven't looked for any updates( waiting4root), but I suspect most of the issues are software related
Hope this helps!
good call on the spigen case.
I took mine off and now the bpm works well. The O2 sensor is still finicky but at least gets a reading. My S5 with the same case worked though so this is disappointing.
I have tried taking my case off, still no go. Everything else seems to work, not sure on the accuracy. Have tried holding in different positions, just wondered if you have to hold a specific way. I hold it with the phone resting on the finger line the heart & stress text, go keeps returning back to screen to retest. Thx for the post.
[emoji53]
Mine seems to work if you are still and only lightly touching the sensor. Not only that but I used just the tip of my finger. I don't have a problem with it reading anything with the case on. Although the display model in the store seemed touchy.
Thx, calling support to see what they suggest. I even got a big magnifying to look at the led to see if I missed taking the plastic off like on the camera, it was hard to see. So no plastic was on my led at all, bummer, need everything working if I sell for the DE, still thinking on this some more.
**called verizon again, spent about 3 hours today on the phone with 4 different people from verizon the. Sent me to Samsung and after doing what I have already done.
* clear cache
* clear data
* roll back updates
* factory reset
Was told I need to take in to Verizon for replacement.
Ended up after new replacement Note 4 was sent everything works great!
finger placement
hi guys try changing your finger placement for the SP02 and heart rate sensor to work. My sensors will only work with fingers placed as illustrated. The image on the left is placement for heart rate and the image on the right is for the Spo2. Hope this helps .
It's more to do with the right amount of pressure than the exact spot it seems. I find that the weight of the phone on your finger tip is the perfect amount of pressure for the sensor. I can get a reading every time without any issues.

cor-L29 nfc not working with supplied case

Hello,
Have the cor-L29 432Gt and using Google pay with supplied cover weakens signal/doesn't work.
Taking cover off remedies it.
Anyone know where exactly where the sensor is, I have a new case on the way and will make a hole in it if I have to.
I didn't think silicone would affect nfc, but have no experience of using it until few days ago.
Cheers
This is not an issue, nfc works front/ear piece facing down.
worked twice today
According to the protective plastic the phone has out the box the NFC is in the upper right hand side of the phone with the screen facing you, this may extend to the entire top section of the phone but I'm not too sure. I use the supplied case and never had an issue with Google pay. Have you tried it in multiple locations? If not it may just be that terminal is a bit weak and can't make a good connection to your phone.
Google pay doesn't show on default payment apps how to fix that .. cleared cache reinstalled the app still nothing altough masterpass shows normally!

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