Database Users

Magnet case with amoled screen question

Can a magnet have a negative effect on my phone screen? I just bought a case the features a magnet clasp.

My understanding is that the Super-AMOLED display is not affected by magnetic fields.

What about the compass?
Unless the magnetic field from the case isn't strong enough to distort it; not sure how much is needed

You will be fine.

Should have no effect unless the screen is operating, the magnet is 3 times the size of an MRI machine's permanent magnet, and the phone is moving through its field at 100 MPH... (the only effect you could get is electromagnetic induction, which would run a current through anything.)
I have the Samsung Galaxy S case, which has a magnetic clasp. It messes up my compass calibration almost every time I put it in, but that problem is quickly solved.

What is all this compass stuff I am hearing about, I just got the phone 2 days ago is the compass that important/ how would I fix a problem with it?

XtaC318 said:
What about the compass?
Unless the magnetic field from the case isn't strong enough to distort it; not sure how much is needed
Click to expand...
Click to collapse
I would wager it uses a fibre gyro compass. The odds of having moving parts inside the phone for the sake of a compass is pretty slim.
Gyro compasses use voltage fed sensors and that is why they (and our phones) need to be calibrated. They are not susceptible to magnetic interference.
I could be wrong, but I would be shocked if they put a magnetic compass in a phone so that it needs to be converted to digital output rather than just put a cheap no-moving-parts-to-break gyro in it that is already digital.

Superbovine said:
I would wager it uses a fibre gyro compass. The odds of having moving parts inside the phone for the sake of a compass is pretty slim.
Gyro compasses use voltage fed sensors and that is why they (and our phones) need to be calibrated. They are not susceptible to magnetic interference.
I could be wrong, but I would be shocked if they put a magnetic compass in a phone so that it needs to be converted to digital output rather than just put a cheap no-moving-parts-to-break gyro in it that is already digital.
Click to expand...
Click to collapse
Thanks for the explanation =)

No problem. Here's some other reading on it if you're bored
Fibre optics: http://en.wikipedia.org/wiki/Fibre_optic_gyrocompass
Different ways of obtaining North and their faults: http://www.seasupport.org/compass.htm

So the consensus is that I'm safe with the magnet case right?

Robman62 said:
So the consensus is that I'm safe with the magnet case right?
Click to expand...
Click to collapse
Yes. You'll be fine =)

Random tidbit: If you put a magnet against the camera lens, it will turn your phone on. I'm using a HD magnet but it might work with a weaker one.

othan1 said:
Random tidbit: If you put a magnet against the camera lens, it will turn your phone on. I'm using a HD magnet but it might work with a weaker one.
Click to expand...
Click to collapse
This happens due to the the magnetic sensor used for the car dock that we never seemed to have gotten. It should keep your screen from going to sleep and, if you were to have the Car Dock application installed, would launch the application.

Discoloration
I bought a case with a magnet clip.
After only 1 week i got a brown-colored spot 1,5 cm in diameter just where the magnet was situated.
Now a couple of months later, the spot is still there.
Don't know how to get rid of it.

A warning to any Note owners

I don't often post here, and and I don't know if this issue has been addressed before, but but I'd like to tell you about my experience with the note:
I received the phone just today, and after bying it online.. All was good, and I already had a case (a faux-leather flip case), waiting, and and put it in immediately. After playing with it for a few hours, and I noticed that there was a dead spot on the screen. But only when using the s-pen, and a few hasty emails and a phone call to Kogan (off whom I bought the phone), revealed that this was a inhear-of-before phenomenon. As of writing, I've yet to receive word whethery they'll accept a return.
However, that would be rather pointless, and since I have since fixed the issue. It seems that the magnet holding the case flap closed was pretty powerful, powerful enough, in fact, to cause the active digitizer to stop working on that of the phone that the magnet was under. After I removed the case the s-pen worked in the spot, as well as the rest of the screen.
So be warned, test your cases if you can before you buy them, especially if they have a magnetic clasp or similar.
(sorry for the prose)

I have been avoiding magnets because of several posts on the subject. There have also been several stating there are no issues.
I prefer to remain safe, and I am grateful for your advice. Magnets near a device relying on magnetic resonance are probably not a good idea. Better safe than sorry IMO.

Strange how some people have this problem. My note has been sitting in a magnet case for 4 months now with no such problems. I guess it depends on the case and how strong the magnet is but I could not do without my case so I will carry on using it for now.

georgios73 said:
Strange how some people have this problem. My note has been sitting in a magnet case for 4 months now with no such problems. I guess it depends on the case and how strong the magnet is but I could not do without my case so I will carry on using it for now.
Click to expand...
Click to collapse
I think it also depends on where the magnet is. Mine was on the back, directly behind the device.

georgios73 said:
Strange how some people have this problem. My note has been sitting in a magnet case for 4 months now with no such problems. I guess it depends on the case and how strong the magnet is but I could not do without my case so I will carry on using it for now.
Click to expand...
Click to collapse
I agree. More testing, and definitely more information from Samsung, is required.

I wonder if it is the TYPE of magnet, not so much the size.
If it is one of those cheap magnets, maybe it won't bother it
as much as the stronger neodymium magnets?

thanks
thanks man.. for sharing this..

I also have avoided the magnet cases due to this fact and have been trying to find cases that use some other alternate means for closure, like maybe velcro instead. I was also even considering that Sweet Case made out of aluminum, but at ~$70, it is rather pricey. I have just been going case less and totally naked with it and so far no problems.

IIRC there is a comment about magnetic fields in the manual...
similarly too, there is a comment about electrostatic fields, so if you are in an environment where sparks fly off your fingertips at intervals be SURE to discharge yourself before touching your SGN.. you may kill the touch response of the screen..
been there, did that, luckily it was a $50 C/H digital thermostat.
EDIT: 2 April 3:00pm
found it: Page 25 of the GT-N7000 Quick start guide states
"Do not store your device near magnetic fields"; and inclusively states "Do not use carrying cases or accessories with magnetic closures"

Man, I guess I have to quit being a Dark Sith Lord. But I have so much fun using Force Lightning to kill all those annoying Jedi do-gooders

I have a Tridea case with a magnet. The magnet is in the part that locks the cover to the back of the phone.
If I fold that piece behind the phone, there is some influence from the magnet. The influence disappears if I leave some space between the magnet and the back of the phone.
It is only a small problem for me, and only noticeable when I play Draw something or similar apps.
My case:
http://forum.xda-developers.com/showpost.php?p=24121326&postcount=330
Sent from the Note taker with Tapatalk

magnets, how do they work??

I have the same issue, I strapped a powermat charging coil to the inside of my casemate tough case, the result is a dead spot directly above the magnet in terms of the spen.
My dilemma is whether to forgo use of the s-pen for the ease of wireless charging.
For the moment as I rarely use the s-pen, the inductive charging coil is staying in place.
The s-pen works as soon as the powermat coil is removed but I'm not sure if it could do lasting damage?
Sent from my GT-N7000 using xda premium

Mystic38 said:
IIRC there is a comment about magnetic fields in the manual...
Click to expand...
Click to collapse
There's a manual? Who knew!
rhn said:
magnets, how do they work??
Click to expand...
Click to collapse
That, my friend, is one of the great unanswered questions of the universe. Gravity is another one. We know what goes on, but not always how. It is mostly at the atomic level, although you have to look into the quantum level to find out more. One day we may figure it out!

Thanks for the warning! I doesn't use a case with magnets, but it's always good to know if I ever would.
/ Jimmy

Signed up to say thanks OP. I too had this situation where i had dramatic penmark deviation on my note. I use notebook style case w/ magnet
I was considering getting it swapped under warranty but then realised the odd behaviour happened in s-memo but not in canvas/paint app. Now i know its the location of the rear magnet on my case. gj op

[Q] DIY Magnetic Car Mount?

So since the Nexus 4 doesn't slide right off the wireless charging orb at the angle it's on, it obviously either has magnets inside it or at least a metal plate of some sort, right?
I was thinking about pulling one of the plastic pieces off my dashboard, installing a relatively powerful magnet on the inside, popping it back on and just sticking the Nexus 4 to it to use as a mount. (I am aware it wouldn't charge wirelessly, that's ok)
Would that work? Or is there any reason this might be a bad idea? I just want to make sure a regular old magnet isn't going to damage it or something.
Thanks!

vitaminbooya said:
So since the Nexus 4 doesn't slide right off the wireless charging orb at the angle it's on, it obviously either has magnets inside it or at least a metal plate of some sort, right?
I was thinking about pulling one of the plastic pieces off my dashboard, installing a relatively powerful magnet on the inside, popping it back on and just sticking the Nexus 4 to it to use as a mount. (I am aware it wouldn't charge wirelessly, that's ok)
Would that work? Or is there any reason this might be a bad idea? I just want to make sure a regular old magnet isn't going to damage it or something.
Thanks!
Click to expand...
Click to collapse
It'll work fine. I did it with my Nexus. I don't have pictures of the Nexus setup, but you can see my magnetic holder/charger for my GS4 here:
http://forum.xda-developers.com/showthread.php?t=2375924

Decently Strong magnet + LG G2?

I bought this mount for my old galaxy s4, , and it worked fine.
It is designed so that you put a piece of high carbon metal in between the phone and the case, then you place it on the magnet and it sticks. It is a truly awesome dock, but I have a question. My S4 would not stick to it without the metal plate in the case, this phone will stick right to it without a case or the metal piece. This worries me.
Has anyone used a similar dock to this one, or can somebody let me know if this will damage my phone? I would just use it, but I heard that the camera's image stabilization is magnetic or something? I am hoping that somebody can give me some info regarding this.

Anybody?
Sent from my LG-VS980 using Tapatalk

Juicy92 said:
Anybody?
Sent from my LG-VS980 using Tapatalk
Click to expand...
Click to collapse
I guess most people are worried about putting a high powered magnet near their data.

vween said:
I guess most people are worried about putting a high powered magnet near their data.
Click to expand...
Click to collapse
Definitely not putting any kind of magnet near my phone.

Lol there's a magnet in the Quickview case
Sent from my LG-D803 using XDA Premium 4 mobile app

I also found out that QI chargers, like my phone supports, also contain a fairly strong magnet to hold the phone in position. The reason my phone was sticking to the magnet dock is because the QI receptor on the back of the phone (inside the back plastic) is magnetic so it can stick to the QI charging base.
Based on my research and my own experience, I am going to assume that it is safe considering I know 3 people using the dock have not had issues and my SGS4 was fine after a few months. I guess I answered my own question. I guess I was just looking for somebody who has used the dock for a longer period of time.
Thanks

I was considering this exact car mount. Glad someone is testing it cuz i was scared about the same thing. Make sure to let us know how it is!
Sent from my LG-LS980 using xda app-developers app

I use tetrax. Not sure if you have seen them. But I have been using them since my Iphone. And currently using it on my diztronic case.
However, you must place the magnet as closest to the buttons on the back side or your wireless charging wont work..

I recently purchased a similar mount that the OP posted, but with a suction mount. I haven't used it yet but will post back after using it.
Sent from my VS980 4G using xda app-developers app

Thanks arson. I don't use wireless charging, at least not yet. The dock I have has about a 1" by 2" super thin piece of metal to put in between the case and the phone. The dock technically stuck to the qi receptor, but I didn't want to do it that way. What I am trying to say is that my metal piece is going to definitely cover up some of the qi receptor, plus I'd rather thave the magnet farrtger away from my camera if possible
Sent from my LG-VS980 using Tapatalk

As long the magnet not near camera, it's fine.
I bought macro lens for smartphone and use magnet to stick on the camera. The result is, the OIS will be not working properly and the picture became blurry.
After that, I gave this lens to my little sister haha..

xdafoundingmember said:
Lol there's a magnet in the Quickview case
Click to expand...
Click to collapse
Couldn't find Quickview case available for G2. You mean Quick Window case? I have it and there is no magnet in it...

fhasovic said:
Couldn't find Quickview case available for G2. You mean Quick Window case? I have it and there is no magnet in it...
Click to expand...
Click to collapse
If the flap\cover on your case triggers the window widgets and wakes\suspends the phone then, yes, it does have a magnet in it.
Not sure how far back the practice goes, but my OG Droid used the same method to trigger Car Home when inserted into the car dock. I took the magnet out of the dock to prevent Car Home from launching.
Small high power neodymium magnets.
Sent from my VS980 4G using xda app-developers app

I have been using a Mountek (the guys who invented this) CD slot mount for three months or so, on Samsung Galaxy S3, Nexus 7 and LG G2.
No issues with magnets on any of the devices. You can wiki the topic.
Screen issues? No, we don't have CRT displays.
Storage? No, flash memory is not magnetic.
Compass? Maybe, hasn't affected me (Co-Pilot Standard, Google Navigation) YMMV
Location Services / GPS? No, GPS uses satellites.
Speakers? It has its own magnets.
Camera? If mechanical zoom, perhaps. Digital zoom, no.
While one can't believe everything on the internet, the consensus is overwhelming that magnets generally do no harm to modern smartphones. I'd be more worried about wireless charging, yet it's becoming mainstream.

cggorman said:
If the flap\cover on your case triggers the window widgets and wakes\suspends the phone then, yes, it does have a magnet in it.
Not sure how far back the practice goes, but my OG Droid used the same method to trigger Car Home when inserted into the car dock. I took the magnet out of the dock to prevent Car Home from launching.
Small high power neodymium magnets.
Sent from my VS980 4G using xda app-developers app
Click to expand...
Click to collapse
You're right! I have located one small magnet

Now that I've used the iMagnet suction mount for a few days I can chime in. It didn't affect my GPS signal and it didn't affect my camera. I didn't purchase a QI charger for my Verizon G2 so I can't comment on its affect. But I do love the flexibility this mount provides since it doesn't use any gripping arms. I'm using an Incipio Dual Pro case with the round magnet between the inner and outer shell. It fits perfectly.
Sent from my VS980 4G using xda app-developers app

I have been using a QI charge rand the suction based mount like this.
Everything has been working flawless. No issues with GPS/DATA/ETC... everything still works.
No need to clip or adjust the holder for the mount. Its just put up and it works.
The only major downside? Well, two or three actually..
CONS:
1. The metal piece is small and thin. But it will still affect the way you use your case. Most cases are built to have nothing between case and phone. Even putting that slim metal piece makes it a little challenging to make just about any case sit flush. Including the Quick Window case, basic TPU case (which has worked the best), and my new incipio case.
2. Because of the metal, it usually affects NFC because it is right there. There might be a sweet spot to make it work with the metal there, but I usually have to take my phone out of the case or at least remove the metal. Main reason the cheap TPU cases work well. East on and off.
3. Pretty much the same as #2, but the metal also affects QI charging. Again, there might be a sweet spot, but I havent found it.
If you don't use NFC or use a QI charger and can deal with A LITTLE ill fitting on the case you own, then I think this is one of the best mounts out there.
I did not stick the metal I just have it loose in the case so I can remove it if necessary.

[Q] Spigen Neo Hybrid (SGP11120) Mulitple Q's

I'm thinking about getting the Spigen Neo Hybrid (SGP11120) and wondered if anyone could answer these questions.
1. People seem to be complaining about the difficulty in using the HRM with this case.
Would simply cutting away the material between the HRM and camera fix this issue? (yes I know it would void warranty etc).
2. If I were to buy the Choetech wireless charger kit http://www.amazon.com/CHOETECH-Wireless-Charger-Receiver-Included/dp/B00PUA06TA/
Would it work and charge with the case? And will the receiver fit into the case, it's 1.3mm thick. Or should I get a thinner receiver?
3. Car mounts: I'm thinking of buying this type of car mount clamping mechanism http://www.amazon.com/Aduro-Universal-Dashboard-Windshield-Revolution/dp/B008ALV0V4/ and using the phone in portrait orientation.
Not the actual mount displayed, but one that fits into a CD tray.
Would the sides of the case frame offer no grip and cause the phone to just slip down or would the grip of the clamp by sufficient?
Or should I be looking at mounts which have "feet" for the phone to rest on, instead of relying on just grip?
i.e. this type, even though it look big and ugly http://www.amazon.com/Mountek-nGroove-Universal-Phones-Devices/dp/B004G1L52Q/
4. Does the frame of the case (the none metal version) cause any reception problems (cell and GPS)?
5. Is the back of the case "grippy". I've heard the "Verus Iron Shield" is more grippy, doesn't have the HRM problems, but the people say the frame looses reception.
Thank you for any help.

I have that Choetech Stadium wireless charger, and it works fine through my UAG case. I'm using the N4SlimPWRCard from Fonesalesman which is 0.5mm thick, wouldn't like to see a 1.3mm thick one!

0-0-0 said:
I'm thinking about getting the Spigen Neo Hybrid (SGP11120) and wondered if anyone could answer these questions.
1. People seem to be complaining about the difficulty in using the HRM with this case.
Would simply cutting away the material between the HRM and camera fix this issue? (yes I know it would void warranty etc).
2. If I were to buy the Choetech wireless charger kit http://www.amazon.com/CHOETECH-Wireless-Charger-Receiver-Included/dp/B00PUA06TA/
Would it work and charge with the case? And will the receiver fit into the case, it's 1.3mm thick. Or should I get a thinner receiver?
3. Car mounts: I'm thinking of buying this type of car mount clamping mechanism http://www.amazon.com/Aduro-Universal-Dashboard-Windshield-Revolution/dp/B008ALV0V4/ and using the phone in portrait orientation.
Not the actual mount displayed, but one that fits into a CD tray.
Would the sides of the case frame offer no grip and cause the phone to just slip down or would the grip of the clamp by sufficient?
Or should I be looking at mounts which have "feet" for the phone to rest on, instead of relying on just grip?
i.e. this type, even though it look big and ugly http://www.amazon.com/Mountek-nGroove-Universal-Phones-Devices/dp/B004G1L52Q/
4. Does the frame of the case (the none metal version) cause any reception problems (cell and GPS)?
5. Is the back of the case "grippy". I've heard the "Verus Iron Shield" is more grippy, doesn't have the HRM problems, but the people say the frame looses reception.
Thank you for any help.
Click to expand...
Click to collapse
I've never tried neo hybrid before, but I own the tough armor, and now ultra hybrid
1. The camera and HRM cutout looks pretty close to the tough armor, and it was indeed so difficult to get the HRM works properly, I tried many finger position, including the one explained in the manual, but almost impossible to get it work properly. I use Ultra hybrid now with bigger cutout, and it works very well.
4. No problem with the reception on my tough armor and ultra hybrid (both frame made of plastic)

Kinsman-UK said:
I have that Choetech Stadium wireless charger, and it works fine through my UAG case. I'm using the N4SlimPWRCard from Fonesalesman which is 0.5mm thick, wouldn't like to see a 1.3mm thick one!
Click to expand...
Click to collapse
eggy_maxx said:
I've never tried neo hybrid before, but I own the tough armor, and now ultra hybrid
1. The camera and HRM cutout looks pretty close to the tough armor, and it was indeed so difficult to get the HRM works properly, I tried many finger position, including the one explained in the manual, but almost impossible to get it work properly. I use Ultra hybrid now with bigger cutout, and it works very well.
4. No problem with the reception on my tough armor and ultra hybrid (both frame made of plastic)
Click to expand...
Click to collapse
Thank you both very much