I have recently brought a Valento leather case which use a magnet locking systeem. I am aware of that the magnet affect the compass of the phone. However a simple recalibration using the 8-wave method will fix this in seconds.
Does anyone knows what the long-terms effect are of a 'case magnet' regard to the compass (or other parts) of the phone? I have only found some information about the short term influence of the magnet, which is (reversible) messingup the compass. But will the magnet eventually cause permanent damage to the phone? I also can't find any information about the type of compass system the Desire S use. The HD2 for example use a fluxgate compass system, so there is no permanent magnet to be affected. Is this the same on the HTC Desire S?
Thank you for your reply.
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This may be a stupid question but do cases with magnetic closures mess up the GPS of a nexus one in anyway? I remember reading something to that effect with the G1 a few years ago but am unsure if it's true or not.
It shouldn't affect the GPS itself... It will (obviously) affect the compass though, so perhaps the orientation may be misreported. GPS works on satellite signals, not geomagnetic forces.
Thanks for the answer.
it might effect the camera, i do not have a case for my Nexus (use holster) but I had a case with a magnet clasp on the cover that effected the camera on my Nokia N97, but with the fone in a case how are you going to use the GPS ?
arimus said:
it might effect the camera, i do not have a case for my Nexus (use holster) but I had a case with a magnet clasp on the cover that effected the camera on my Nokia N97, but with the fone in a case how are you going to use the GPS ?
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Good point. I didn't think of that. The camera in the nexus one, as in most modern phones, uses a piezo ceramic motor for its autofocus mechanism. While not exactly working in a similar manner to standard electromagnetic motors, they are still influenced by the magnetic field. That said, you're not going to use the GPS or camera while the phone is in the holster, and the effects should be limited to that situation.
Oh, and if it's any comfort, I work with fMRI using moderately high field strength (3T). I have walked in the room with my phone before, and even though it is tugging to the scanner in my pocket, it still works completely fine today. A typical pocket magnet is 2-4 orders of magnitude weaker (1/100 - 1/10000 the strength). It will not damage anything in the phone permanently. Either that, or I have been extremely lucky.
Thanks for the answers. I ended up going with this Seidio Innocase Case and I couldn't be happier. No magnets to ruin your phone in this case
magnets can also screw with the capacitive touch screen.
Search for my post where I made a desk and a car mount using super strong hard drive magnets. I've been using it all day every day, no effects on anything except the compass when attach to the mount. Screen, touchscreen, camera, gps, totally unaffected. Compass still works fine when not mounted.
Hello,
I got a case for my Nexus S with magnet (the only I found in my city) and I'd like to ask if there is going to be any malfunction with the screen or any of the sensors of the phone because of the magnet that the case has.
I downloaded the "Phone tester" app that tests the phone's sensors and I saw that the values of compass and magnetic field were tottaly different when I put the case close to the phone. Of course this is logical because of the magnet but I'd like to ask if there is a chance of damaging anything in the phone after long term use.
Thanks
bad_freddy said:
Hello,
I got a case for my Nexus S with magnet (the only I found in my city) and I'd like to ask if there is going to be any malfunction with the screen or any of the sensors of the phone because of the magnet that the case has.
I downloaded the "Phone tester" app that tests the phone's sensors and I saw that the values of compass and magnetic field were tottaly different when I put the case close to the phone. Of course this is logical because of the magnet but I'd like to ask if there is a chance of damaging anything in the phone after long term use.
Thanks
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Click to collapse
long term damage, probably not. throwing some of the sensors off, most likely. i had a case with a magnetic snap for my g1 back in october 2008, and i noticed that thew compass was always off a bit. figured out it was the magnetic snap. i havent used a magnetic case on any android phone since, havent used any case since actually. to get the compass back to accuracy, a few firm smacks on the back helped.
hey all,
I bought a cover with a magnet to hold the flap when the cover closed.
now the question is, will it affects the screen or damage anything in the tab?
bassem.mohsen said:
hey all,
I bought a cover with a magnet to hold the flap when the cover closed.
now the question is, will it affects the screen or damage anything in the tab?
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it might or might not affect the screen but it will definitely affect the Galaxy Tab 7.7's magnetic sensors/internal compass
TeeeJaay said:
it might or might not affect the screen but it will definitely affect the Galaxy Tab 7.7's magnetic sensors/internal compass
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affects it as a damaging effect, or just when i remove the cover it will work normal again?
and i'm talking on the long period of usage the cover.
most covers in the market nowdays uses magnetic flap to close the cover as i think
bassem.mohsen said:
affects it as a damaging effect, or just when i remove the cover it will work normal again?
and i'm talking on the long period of usage the cover.
most covers in the market nowdays uses magnetic flap to close the cover as i think
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Affect as in it will affect its operation, it cannot tell the which direction is north since there is a magnet near it.
As for damage concerns, maybe you can ask Samsung support regarding and share their response to us :fingers-crossed:
One thing to look at is that I have never seen an official Samsung case with a magnetic latch.
I've discovered that Samsung itself made some pouches with magnet on it
I have a magnetic flap for about a month now and it didn't damage the device Nor the screen, but it definitely affects the compass.
Sent from my GT-P6800
Hi all, I'm a forklift operator and I have a problem when I'm on my lift. I set my phone down on the tray, which is directly above the battery by about 10 inches, and the screen will randomly turn on by itself. If I'm off the lift, I don't have this problem. I'm no electrical engineer by any means, but is it possible that 2 ton, 1875 amp-hour battery is giving off enough of a magnetic field to trip a sensor somewhere in the phone? There's plenty of wires and metal, but it's really the only thing I can think of. My old EVO 3D did this too sometimes, but I chalked it up to being a bad ground somewhere along the line.
Anybody else share this issue on their lifts or similar machinery?
The nexus 5 does have the smart cover sensor so that is likely the behavior you are describing but I wouldn't have expected a fork lift to be giving off that strong of a magnetic field to interfere with it
Sent from my Nexus 5 using xda app-developers app
as alex said i dont think its the forklift....
this is most likely linked to your proximity censor...
The smart cover sensor is magnetic. It shouldn't have anything to do with the proximity sensor.
It's just weird why it's triggering your phone.
Your forklift could use some form of magnetic resistance for lowering which would might explain the triggering
Sent from my Nexus 5 using xda app-developers app
I've seen all sorts of proximity to random items trigger the hall effect sensor using magnetism. It's fairly common.
Magnetic hydraulic servos on some forklift, very strong localized magnetic fields in places.
WR
Sent from my Nexus 5
Appreciate the replies. I tested the magnetometer with STools and it does seem like there's a magnetic field towards the front of the lift. At least, the lines moved a lot more. So when you say magnetic resistance, makes sense. One more question, does anybody have any ideas of how to potentially block it? I plug into a speaker while I'm working so that's why my phone sits there. The brass gets real uppity about earbuds.
Sent from my Nexus 5 using Tapatalk
You'd need a Faraday cage or the like, then you'd essentially have no cell at all.
Grab a BT speaker perhaps, some crank out near 100 watts an can be heard easily in a small cab wirelessly.
Or a longer patch cord.
WR
Sent from my Nexus 5
I have a P901 (3G model) and an official case for it, but when its in the case the HOME/BACK/RECENT buttons flat out dont work. If I take out they do work.
Any ideas where the sensor is on the tablet? I suspect what is happening is the case/tablet is a bit too sensitive...
Based on your symptoms I'd suspect that the case features auto on/off capability which is triggered by magnetic fields generated by magnets hidden within parts of the case. Not sure what else you can do short of finding said magnets and removing them. It should be easy to find them, take the case off of the tablet and then run an unbent paper clip along the various surfaces of the case both back and front. You should be able to locate various magnets that way.