I will be buying a case for the SGN which will have a magnet. I have read some of the posts here about possible effect of magnet on the SGN, and seems many people concluded that magnet should be avoided if possible, and my common sense agrees with that.
However, I am quite puzzled why Apple has used strong magnets extensively in their iPad2 and that the device is not being affected. It actually has magnets on the left and right side of the device, as well as the smart cover. Any suggestions?
BTW, this is not a post about Android vs Apple, just a general question about effect of magnet on devices.
Won't it just be the fact that the ipad is miles bigger, so probably more space between magnets.
Maybe because the magnetometer inside...
[email protected] said:
I will be buying a case for the SGN which will have a magnet. I have read some of the posts here about possible effect of magnet on the SGN, and seems many people concluded that magnet should be avoided if possible, and my common sense agrees with that.
However, I am quite puzzled why Apple has used strong magnets extensively in their iPad2 and that the device is not being affected. It actually has magnets on the left and right side of the device, as well as the smart cover. Any suggestions?
BTW, this is not a post about Android vs Apple, just a general question about effect of magnet on devices.
Click to expand...
Click to collapse
It is probably because the SGN has a magnetometer inside, a very sensitive instrument for measuring magnetic strength. I dont know anything about iPad, but this is my guess to why a magnet would affect a SGN negatively
http://en.wikipedia.org/wiki/Magnetometer
I thought it was because the Wacom touchscreen/stylus technology in the Note is magnetic, while iPad touchscreen technology is capacitive, like most other devices these days. I don't think a magnet would cause any damage, just screen interactions/presses. Someone correct me if I'm wrong.
maxh said:
I thought it was because the Wacom touchscreen/stylus technology in the Note is magnetic, while iPad touchscreen technology is capacitive, like most other devices these days. I don't think a magnet would cause any damage, just screen interactions/presses. Someone correct me if I'm wrong.
Click to expand...
Click to collapse
You are probably right. Sounds more plausible than what I thought
The wacom digitizing technology is not exactly magnetic as far as I know. It is actually that your S-Pen has an electromagnetic coil inside it that communicates with the digitizer in the screen. This electromagnetic coil can be affected by a magnet in the vicinity.
In the case of ipads, ipods, etc. they all have dumb styluses, so a magnet does nothing to them. At the same time, because your spen is actually more than a stylus - it doesn't work on normal touchscreens (go ahead and try it on your ipad ).
Edit: I just checked, the SPen uses a technology called ElectroMagnetic Resonance. There's a capacitative coil inside your Spen that receives signals from the digitizer in the screen when the tip is pressed. The mesh of the digitizer provides power to the Spen through resonant coupling, thus enabling it to both receive from and transmit information to the screen.
So in conclusion, the magnet is not damaging our device, just confuse the spen and it's precision.
So it is safe to use case with magnet mechanism, but when we take off the device from the case, all is OK.
Don't a lot of docks use magnets to signal that the phone is docked? For instance, when I put a magnet up to my Droid X it will either think it is in a home dock, or a car dock, depending on its polarity.
but they do not have s-pen technology inside them
safe to say, i think it's ok to use cases with magnets caveat emptor when you're using the s-pen
I don't know what effect a magnet might have on the digitizer inside the screen, so please check with samsung customer support first...
The part that concerns me is that samsung make it sound like the issue is 'long term exposure'. I suspect that it might screw with the calibration of the magnetometer over time.
If it was just an issue where magnets would make your s-pen act screwy in the short term they would've surely just written 'magnets may make your s-pen act screwy'.
Related
Hi initial photo review of this case. Will write a full review later tonight.
In a nutshell it is well made and light. Fits very well in trouser pocket. Does not feel bulky.
Price about £10.
You will find them on ebay in various colours.
If these photos help you decide. Feel free to hit the old Thanks button.
Glad to be of service.
That case looks great. I love how it protects the edged of the phone, unlike the official Samsung flip case. Does the flap stay closed using magnets?
zpiders said:
That case looks great. I love how it protects the edged of the phone, unlike the official Samsung flip case. Does the flap stay closed using magnets?
Click to expand...
Click to collapse
Yes it does. I will write a detailed review sometime today. Central heating pump failed and looking after a newborn has kept us busy. Lol
Sent from my GT-N7100 using xda app-developers app
Thanks for the pics. A link or two to the ebay sellers would be nice, though...
Edit: Is this the same seller?
Also, does the magnet cause any issues with the s-pen?
Tried one out and found that I had to take the back cover off to fit the phone snugly.
Since the cover doesn't have an NFC chip, you will lose that functionality. The case doesn't fit on the phone with the back cover on unless the one I saw was a duplicate. Moreover the magnetic closure is flimsy too.
Just my 2 cents.
Sent from my GT-N7100 using Tapatalk 2
fawaad said:
Tried one out and found that I had to take the back cover off to fit the phone snugly.
Since the cover doesn't have an NFC chip, you will lose that functionality. The case doesn't fit on the phone with the back cover on unless the one I saw was a duplicate. Moreover the magnetic closure is flimsy too.
Just my 2 cents.
Sent from my GT-N7100 using Tapatalk 2
Click to expand...
Click to collapse
The case has nothing to do with NFC... what do you mean?
mdt73 said:
The case has nothing to do with NFC... what do you mean?
Click to expand...
Click to collapse
The NFC antenna is embedded in the Note 2's back cover.
For the record. The handset clicked into case. Nothing had to be removed. Grips it fine. Must be a different case if you have to remove covers.
So far only really annoying thing is using it one handed. The folding cover is in the way of fingers.
There is a similar case that has a rotating cover. That would resolve this issue. Also enables a portrait stand.
Also as suspected. The home button is being pressed by the cover due to no recess (think thats the correct word) in the cover. This is activating the voice assistant. Disabled it as it is rubbish. But will mod cover at later date.
Sent from my GT-N7100 using xda app-developers app
Another little update, these stand cases are really good for watching iplayer etc. But I think I am going to buy a leather sleeve/pouch type case. Ive always used them with htc handsets, due to most usage is one handed. And save the stand case for movie time.
Sent from my GT-N7100 using xda app-developers app
I bought the Original Samsung Note 2 flip case instead. Although it was expensive £30 .... but I think it looks really nice and still have NFC function.
zero.fx said:
I bought the Original Samsung Note 2 flip case instead. Although it was expensive £30 .... but I think it looks really nice and still have NFC function.
Click to expand...
Click to collapse
The biggest flaw with the original Note 2 flip case is that the corners/edges are completely unprotected. If you drop the Note 2 and it lands on the corner it might shatter the whole screen.
Not enough protection for my taste...
I bought this case yesterday in a shop and was massively disappointed. If you fold the cover behind the phone to use it the phone is hard to handle and doesn't sit ergonomically in your hand.
BUT BIGGEST FLAW: The little magnet on the right side interferes with the wacom digitizer. Try pulling out the S Pen and draw a straight line along the right edge, and the line curves outward around the magnet.
I was about to return the phone when I realized the error was next to the magnet. Pulled it out of the case and problem gone. I could reproduce this problem anywhere on the screen by holding the magnet part next to it.
There are tons of reports if you google "wacom magnet s pen" about interference, so I would avoid using this case. There is apparently even a note about this in the manual somewhere.
sz1a said:
I bought this case yesterday in a shop and was massively disappointed. If you fold the cover behind the phone to use it the phone is hard to handle and doesn't sit ergonomically in your hand.
BUT BIGGEST FLAW: The little magnet on the right side interferes with the wacom digitizer. Try pulling out the S Pen and draw a straight line along the right edge, and the line curves outward around the magnet.
I was about to return the phone when I realized the error was next to the magnet. Pulled it out of the case and problem gone. I could reproduce this problem anywhere on the screen by holding the magnet part next to it.
There are tons of reports if you google "wacom magnet s pen" about interference, so I would avoid using this case. There is apparently even a note about this in the manual somewhere.
Click to expand...
Click to collapse
This happens because wacom digitizers use magnets to work (partially, there's more to it) - the pen is a magnet. Crash course: A magnet creates a magnetic field around it. Whenever you're moving the pen, you're moving this field - any given point in space near the magnet experiences a change in this magnetic field (this creates an electric potential and a potential difference between points affected by the field). A really cool thing about moving magnets near wires is we create what's called an induced EMF - the change in magnetic fields causes electrons to move because of changes in relative potential difference between nearby points.
A static magnet (in relation to a point) will have a static field, but a field none the less - the magnet on the casing. When you bring two magnetic fields together, they interact to form a resultant field at any point in time.
The pen is still working as intended, but the other magnet has changed the potential you produce near that magnet via movements of the pen - thus, different and incorrect readings. It's relative to the position of the case magnet, so you get a different effect at different distances from the magnetic source.
The result is that the same motions of the pen near that magnet are causing different currents to be read than the wacom digitizer expects for that motion.
While it's great to hear through some empirical data that physics still works, I was already actively avoiding this case for this reason.
In contrast, previous smartphone cases with phones that use capacitive touch don't have as much an issue because it's basically a field of current that your touch (finger, capacitive stylus, etc) redirects some of that flow across. While a magnet could indeed affect this field, the magnet isn't moving so it's not as much an issue (it's still an issue because, depending on field strength, orientation, and relative locations, the electrons are still moving with respect to the magnet, and are repelled/attracted by the field in this manner to different degrees. However, the difference is constant and like is accounted for because digitizer system can't guarantee constant currents necessarily, so there is variation allowed for. With the Wacom pen magnet, it's weak enough to be noticeable.
TL;DR - Anyone with a course in EMF and an understanding of induction would be able to tell you this right off once they found out the pen uses a magnet. Incidentally, the magnet is also why you can do the hovering stuff so accurately. Other forms of non-touch gestures have many ways they could work too, but one way is your body affecting a field around the digitizer enough (whole hand swipe across without touching) that is is measurable.
It's also how inductive chargers (ones where you don't plug in the device) work. Changes in current flowing through wires creates a magnetic filed which, by orientating the wires, using loop/solenoid type configurations, this field changes (an AC signal). When your device is in the field, a similar configuration in the device is subjected to this changing field, and, more simply put, energy is exchanged via magnetic fields.
This is really cool because you've taken a changing current, which creates an electromagnetic field across other wires, which causes a flow of current.
Anyways, yeah avoid having magnets near devices depending upon EMF induction to work
In response. Regarding the case and holding it. I agree, does my head in sometimes. Hence why i may get a sleeve instead for when at work and use it one handedly most of the time. Regarding nfc, i aint convinced it would be affected until i get to test it. Regarding magnet, never noticed it until tested. Only effects 5mm of right side of screen and 15mm vertically, not the end of the world.
Just tested a piece of tin foil placed between handset and case at the point of the magnet. Didn't make any difference. Shame it cant be shielded.
Gotta say. The mobli is very well protected and the white case and mobile has yet to look dirty. Day job, hands get mucky.
Anyone got the case that the stand rotates? Does it make holding it less annoying?
Sent from my GT-N7100 using xda app-developers app
So, can the magnet cause any permanent damage to the gyroscope, compass and wacom bundle? I did notice that the compass is off by 10 degrees with the case on versus off.
I've used the phone for a few days without the case and it gets greasy too fast. So its back into the case again. It is pretty sturdy, just wonder if its possible to extract the magnet somehow! Maybe lodge a knife in there or something.
Anything that works by sensing the Earth's magnetic field, such as a compass, will be screwed up by a magnet in a case. It's really not worth buying a case that has a magnetic clasp...
I lodged a kitchen knife in between the magnet and the case and jerked around. It broke up into several pieces and came out attached to the knife. Since its either in my pocket or on a table the flap stays closed and no more magnetic issues.
...
FloatingFatMan said:
The NFC antenna is embedded in the Note 2's back cover.
Click to expand...
Click to collapse
isnt the NFC chip in the battery??
yusssi said:
isnt the NFC chip in the battery??
Click to expand...
Click to collapse
... Why would they put the NFC chip in the battery?
On the SIII, the NFC -ANTENNA- is in the battery... The chip is on the phone motherboard. In the Note II, the antenna is in the back cover. Are you blind? Have you never taken your back cover off?
don't be so harsh.
some of us ex galaxy nexus owners had NFC built-in batteries..
FloatingFatMan said:
... Why would they put the NFC chip in the battery?
On the SIII, the NFC -ANTENNA- is in the battery... The chip is on the phone motherboard. In the Note II, the antenna is in the back cover. Are you blind? Have you never taken your back cover off?
Click to expand...
Click to collapse
So I got my new Z3C and was thinking: what if we can make flaps and audio port more waterproof?
Doing pressure sensor test I get reading around 1000 and it's increasing by about 30-40 when I press against screen with closed flaps. But it normalizes after 1-2 seconds and goes back to initial reading meaning tiny amount of air escapes. Does it mean my phone is not totally waterproof? Don't know.
Since this phone is just fresh-water proof (meaning no using in pool or sea) and I really want to use it worry-free in all kind of water that I dare to go in myself I really want to improve waterproofness.
I'm not worried about front and back since glass should be all.kind-of-things-proof. This leaves sd card and sim card covers, audio jack, mic holes and speakers.
So what I thought of was to "grease" flaps' rubber o-rings with rubber compatible oil/grease to make better contact with phone body or use some kind of silicone spread around rubber contact area before closing flaps to have semi-permanent seal and be still able to open and scrub extra stuff off without doing much damage.
For audio jack I thought to make some kind of plug - like pressy button but with a bit bigger "head" that has soft sticky rubber underneath so when pressed in it makes a seal with the edge of audio jack or even plug that is covered with silicone all the way.
Speakers and mic holes could be protected with bits of strong adhesive tape - it's easy to get sticky stuff off the glass and it'll be possible to hear some sound even with speakers covered. Not sure about mic holes because side plastic has matte finish but some strong adhesive should still stick?
So the question - has anyone tried something remotely related? Is it thinkable? Have I missed anything important? What materials (grease, silicone) should I use?
If anyone has done something similar? Probably... But no one ever posted about it on this forum. You can use the phone in the sea and swimming pool, as long as you rinse the phone afterwards. As for modifying the phone, I wouldn't do it. It might cause you to lose your warranty.
In terms of waterproofing the phone even more, I'd look at waterproof cases made for other phones with almost similar dimensions and see if you can do something about the case instead.
Sent from my D5803
Dsteppa said:
You can use the phone in the sea and swimming pool, as long as you rinse the phone afterwards. As for modifying the phone, I wouldn't do it.
Click to expand...
Click to collapse
Plenty of stories of people going in the water, damaging their phone and fighting with sony about warranty.
It's hardly modifying, adhesive sticker on glass is easily removed and thin film of silicone should be also easily removable.
Dsteppa said:
It might cause you to lose your warranty.
Click to expand...
Click to collapse
Yeah... getting water inside causes that too.
Dsteppa said:
In terms of waterproofing the phone even more, I'd look at waterproof cases made for other phones with almost similar dimensions and see if you can do something about the case instead.
Click to expand...
Click to collapse
That's the option. But I haven't seen any slim waterproof case that could be comfortably used all the time.
Anyway, curiosity is strong and I'll most likely try different options.
PS. can someone test pressure sensor - is reading staying high when screen is pressed or it fades back to normal with all covers closed?
I've just used mine in pool all weekends since I bought it without any issue and even without afraid of doing that! The same with my wife's Z1!
And I'm contantly opening/closing its usb port due my xposed modules development (debugging purposes)! Maybe some unlucky day I will screw it... who knows!
Ofc we always need to be sure all ports are properly closed before going to have fun!
kalamees1 said:
Plenty of stories of people going in the water, damaging their phone and fighting with sony about warranty.
It's hardly modifying, adhesive sticker on glass is easily removed and thin film of silicone should be also easily removable.
PS. can someone test pressure sensor - is reading staying high when screen is pressed or it fades back to normal with all covers closed?
Click to expand...
Click to collapse
Sorry, I forgot about the pressure sensor part, it's normal that the numbers go back to normal after you lifted your finger, it works like that for everyone.
If my mind serves me right, I've seen Sony ads with the Z3C being thrown in a pool or something similar, so a pool really shouldn't be a problem. And yes of course people will have to fight for their cause at Sony, they won't just put any phone under warranty, else people would exploit that.
Dsteppa said:
Sorry, I forgot about the pressure sensor part, it's normal that the numbers go back to normal after you lifted your finger, it works like that for everyone.
Click to expand...
Click to collapse
I probably expressed myself bit vaguely. Thing is that pressure reading on my phone returns back to normal WHILE HOLDING screen under pressure. Initially pressing screen creates greater pressure inside the phone, reading rises but air escapes quite quickly (1-2seconds) and pressure reading normalises. After releasing finger screen pressure sensor shows lower readings for a second until extra air seeps inside to equalise pressure again.
Hope it's clear enough.
Also, does it mean that I got less waterproof phone that it should be?
I dunno about you but i've been using my camera in the pool for a while now and even for hours at times
Sent from my D5833 using XDA Free mobile app
I've used mine under water as well. OP if you're really worried about it you can send it off to liquipel and have them make the phone even more waterproof
OK, I have found the issue that causes the touchscreen ghost touches, unresponsive touchscreen, etc. This guide is short and simple, and is provided with NO WARRANTY, TO BE FOLLOWED AT YOUR OWN RISK. This guide requires that you open your device WHICH VOIDS THE WARRANTY. Those of us with the original grouper/WiFi/2012 version are well outside our warranties, so that really doesn't matter now.
To explain, our devices use (to my knowledge) an actively driven capacitive touchscreen sensor. It has been narrowed down that a significant number of devices suffer from a grounding issue where the voltage potentials between the case and screen will cause a number of touchscreen issues when the device is electrically insulated from the person touching the screen. There are many YouTube videos and guides on how to diagnose if your touchscreen has this issue; I will not detail those here. To be simple, if you set your device on an insulated surface like a wood table and touch the screen with ONE HAND while not touching the device with your other hand, the touchscreen will go ape**** on you.
For those of us suffering these issues, it can ruin the entire experience of the tablet. I have deduced through a logical process the location and cause of this issue, which I will detail in the guide below.
The nexus 7 uses a filmed metal back, which is mechanically grounded to the motherboard via two "blind" gold spring contacts on the motherboard which touch the filmed metal backing of the case back. I call these "blind" contacts because there is no corresponding electrical contact for them to sit upon, simply the material of the case itself is what they contact when the case is closed.
What you will do by following this guide, is physically break these tabs off the motherboard, thereby breaking the circuit of the faulty ground point. The reasons this is successful in resolving the touchscreen issue appear to be twofold; first the ground points wear off the filmed metal of the back QUICKLY due to flexion of the plastic case back and therefore end up forming a SECOND capacitor on the device case back. This causes electrical potential to build between the plastic case back and the device itself, causing unreliable reading and operation of the capacitive touchscreen. Second, the intermittent ground connection causes unreliable grounding of this capacitive potential, which is worse than no ground at all in the respect of a capacitive coupling of the case back and the device.
These issues could not and cannot be resolved by a firmware flash, because it is a physical problem. Asus could not resolve the issue completely, because even if all components involved are replaced the issue will arise again due to the way the device is constructed. It was simply a poor design.
So, to get to the meat and potatoes of the fix;
1.) Pop the back off your nexus 7. Locate and REMOVE THE BATTERY CONNECTOR to prevent any possibility of a short while you follow the rest of the guide.
2.) Locate the two blind gold spring pins on the bottom right corner as circled in red on my attached picture. Note how they do not have any corresponding connection on the case back as the WiFi GPS Bluetooth and NFC antennas do. This is because these points were meant to found the case back to prevent exactly the issues we are seeing. However due to poor design they have become the CAUSE of the issue.
3.) Most simple step: break BOTH connectors completely off the board by gently bending them back and forth until they snap cleanly off the board. There is no chance of trace damage when doing this - the solder is MUCH stronger than the super thin spring connectors and they will easily break cleanly at the solder joint. If you do not break BOTH off, the touchscreen will get WORSE because you have simply enhanced the ability of the case back to form a capacitive coupling with the case back. So break both, or do not bother.
4.) Replace the battery connector and case back, ensuring you do NOT damage any of the other fragile gold spring connections, if you do you will lose some of your antennas and these connectors are a pain in the ass to replace.
I have attached a picture that shows the two points that need broken off the board circled in RED.
That's it, you're done. Reboot the device and enjoy a touchscreen that actually ****ing works. You're welcome.
Again this guide is provided at your own risk, I am not responsible for anyone who breaks the wrong connector despite my detailed guide, and I am not responsible for any other damage your fat fingers might cause while dicking around inside a sensitive electronic device.
I understand if some are too squeamish to attempt this guide, but I respectfully request that those afraid to attempt do not bother ****ting up the thread with useless posts. Constructive comments are always welcomed.
If this works for you as it did for me (I.E. perfectly) please hit the THANKS button!
I'm also currently unemployed, so if I've helped you and you are better off than I am then donations to my google wallet account are HUGELY APPRECIATED!
Once confirmed, I would ask that the mods sticky this thread.
Post reserved for future use.
And the dumb ****s at Asus tech dept. of course couldn't figure this out. Never again will I give Asus a dollar for anything.
ChristianJay said:
And the dumb ****s at Asus tech dept. of course couldn't figure this out. Never again will I give Asus a dollar for anything.
Click to expand...
Click to collapse
Even if they knew exactly what to do the company is not going to allow them to "damage" devices in order to fix them. That's how Asus would see it, as damage. It is against the original, albeit flawed, design.
fwayfarer said:
Even if they knew exactly what to do the company is not going to allow them to "damage" devices in order to fix them. That's how Asus would see it, as damage. It is against the original, albeit flawed, design.
Click to expand...
Click to collapse
They don't do **** to fix anything, I sent them one, a 2012 N7 and they did absolutely nothing to remedy it, re-flashed the O/s or some such crap. I came up with a partial fix myself.
Just out of curiosity, have you done my fix and can you post confirmation so we can get the mods to sticky this thread?
As much as I'd love to get everyone's old n7 for dirt cheap when they think its "broken", I'd also like to see us snub Asus with our own permanent real fix as opposed to their bs runaround they pull until the warranty is up.
So please do confirm if possible.
fwayfarer said:
Just out of curiosity, have you done my fix and can you post confirmation so we can get the mods to sticky this thread?
As much as I'd love to get everyone's old n7 for dirt cheap when they think its "broken", I'd also like to see us snub Asus with our own permanent real fix as opposed to their bs runaround they pull until the warranty is up.
So please do confirm if possible.
Click to expand...
Click to collapse
Hi, Just replaced a broken screen few days on it with a new one and got lots of ghost touches and non responsive spots.
So I tried your suggestion and it works for me , I took a less destructive approach and just put some tiny pieces of duct tape on the back cover where the connectors touch it instead of breaking them off.
My new screen is in place and working properly :good: .
Thanks.
yefet2000 said:
Hi, Just replaced a broken screen few days on it with a new one and got lots of ghost touches and non responsive spots.
So I tried your suggestion and it works for me , I took a less destructive approach and just put some tiny pieces of duct tape on the back cover where the connectors touch it instead of breaking them off.
My new screen is in place and working properly :good: .
Thanks.
Click to expand...
Click to collapse
Mods please make this a sticky thread at your convenience, I believe this info will help a large number of N7 users, and it seems like according to the user above that it works when done in a non destructive way as well.
I ve had the same problem with my touch screen, it only happened when i connected the back cover of the nexus( i had a screen change)... so before i try to break the 2 pins i ve just put some electric isolation tape (plastic) and touch works like a charm.... thanks!!!
Be careful what kind of tape you use, some tape could make it worse.
You're welcome.
If anyone else has succeeded using this method or using tape, please post your results. I'm going to assume it hasn't harmed anyone or I'd have heard about it already.
Will attempt this tomorrow and confirm back. Using tape method.
Carried out the tape option, along with other additional fixes. Wipe cache, turn off animations, limit background processes to 3 and others. Seems to be working for me perfectly now.
fwayfarer said:
To explain, our devices use (to my knowledge) an actively driven capacitive touchscreen sensor. It has been narrowed down that a significant number of devices suffer from a grounding issue where the voltage potentials between the case and screen will cause a number of touchscreen issues when the device is electrically insulated from the person touching the screen. There are many YouTube videos and guides on how to diagnose if your touchscreen has this issue; I will not detail those here.
Click to expand...
Click to collapse
Can someone please refer me to a YouTube video that shows how to diagnose if the touchscreen has this issue? Thanks.
It's so simple to type into google search "nexus 7 2012 touch screen problem video" you'll need to do it yourself.
Sorry.
Brilliant!
Finally I can now use my Nexus 7. At first I thought the erratic touches were due to the oil on the screen but upon replacing the screen protector, the erratic touches are still present.
Tried taping the contacts with a tape (A simple electrical tape would do), and much to my surprise, the device is usable now.
Also working for me, i just broke the pins. Much better now!
Gesendet von meinem Nexus 7 mit Tapatalk
Tested the tape/isolator option (less hardcode) in my "bad" N7 (the other works flawlessly and they were both bough day 1, maybe different revisions, not gonna open that one incase!), and the ghosting hits and touchscreen ignore problems seem to be completely gone.
Thanks a lot!!
Thanks so much for the fix, it's a new tablet now. I confirm this works by using isolator tape over the pins. Very easy fix, took me 2 mins to do it... would have liked to know about it sooner
Thanks, I already had managed to solve partially the problem placing an aluminium foil into the tablet (risky and complicated so didn't posted), but this is easier and WiFi reception is better too. Anyway it is not perfect yet, same problem than my solution: try crossing axis vertically or horizontally (only one hand, tablet on a table) and weird things happen like no touch detected, very fast touchs, etc... I will post here if I figure out something else.
So, due to a case I have, I've noticed something that disturbs me slightly.
If you place your fingers on the top and bottom plastic pieces on the right, you loose about 10 dB (give or take) of cell signal. I noticed this on my phone and asked a couple of employees with S6/edge phones at Best Buy. All 3 of the phones exhibited this behavior so I've determined its an issue with the design (similar to 'anyennagate' for the iPhone 4).
The case was a TPU case with a metal bumper, the bumper cause about 10dB lose so I did some troubleshooting and that is what I found.
Anyone else notice this?
_Dennis_ said:
So, due to a case I have, I've noticed something that disturbs me slightly.
If you place your fingers on the top and bottom plastic pieces on the right, you loose about 10 dB (give or take) of cell signal. I noticed this on my phone and asked a couple of employees with S6/edge phones at Best Buy. All 3 of the phones exhibited this behavior so I've determined its an issue with the design (similar to 'anyennagate' for the iPhone 4).
The case was a TPU case with a metal bumper, the bumper cause about 10dB lose so I did some troubleshooting and that is what I found.
Anyone else notice this?
Click to expand...
Click to collapse
I tried it, not sure if its true. Out of several tries it did go down may e two or three but idk where I stand on that yet.
I will try this with all the demo units at my job and see if I can replicate it.
Two or three is good, that is within normal deviation for just doing there (think boots and such lol)
Video of what I'm talking about .
https://youtu.be/Yy9fG--rHTA
Sorry for the bad quality, used my tablet.
_Dennis_ said:
Video of what I'm talking about .
https://youtu.be/Yy9fG--rHTA
Sorry for the bad quality, used my tablet.
Click to expand...
Click to collapse
Yeah, those are the antenna strips. What did you expect would happen if you cover them up? Same thing will happen with the left side strips for wifi and bluetooth.
Red5 said:
Yeah, those are the antenna strips. What did you expect would happen if you cover them up? Same thing will happen with the left side strips for wifi and bluetooth.
Click to expand...
Click to collapse
They are ONE way the RF gets to/from the antenna (the reason the whole back is not metal) plus Samsung claimed it used tech to prevent that.
Also I was not complaining so much as stating it did this. In addition it occurs with cases that use a metal bumper (even with cutouts for the RF or with a TPU spacer. It was a design decision by Samsung, the same one android fans called apple stupid for a few years ago. Go figure, now some of us are defending it.
Hello everyone,
I bought a very good case that protects the whole device nicely and it also protects it from drops (claimed from even 2 meters height). I'm overall pleased with the case but I'm concerned about 1 thing, magnets. This case shuts very tightly because it has 2 bars of magnets, 1 in the lid and one in the back of the case so they come in contact and shut the case tightly wrapping the whole phone. (I know this has been discussed already but this magnets seem stronger than the competition) As a result, when using this case the compass gets totally useless (magnetic sensor can't work, won't calibrate and always stays in maximum value). I also measured the magnetic fields with another device and yea, when I approach it close to either magnet bar it gets high too. I don't use the compass often but I'm concerned about permanent damage on the magnetic sensor or on anything else in future. since I'm planning to use this case forever.
Any idea? Thanks.