Can I fold an nfc sticker? - NFC Hacking

I wonder if I can fold an nfc sticker in half and still have a functioning nfc tag?
The reason I am asking this is because I want to create my own nfc ring to wear. I am well aware that there already exists but I need a ring that is open under.

No it won't work. NFC chips are powered with inductance. If you fold the induction coil that powers the chip the power supply will break so the chip will be useless. You could just make your own inductor but it i a horribly tough project to make especially if you are a beginner (including myself). So bottom line if you can't make another induction coil don't fold the existing. Also if you are making the ring out of metal you must think about the magnetic properties of the material. Here's a link that will help you
http://en.m.wikipedia.org/wiki/Inductor
And
http://en.m.wikipedia.org/wiki/Electromagnetic_induction
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Nope!
I tried it a few times, so I can confirm: No, it's not working!

Why not just checkout nfcring.com they are now taking pre orders
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Related

Inductive Charging for the Galaxy Nexus! Palm Touchstone

I followed these instructions and it was a resounding success!
http://forums.androidcentral.com/ve...us-mod-palm-touchstone-without-soldering.html
One thing to note: I have the extended battery+cover and while it did technically fit under the back cover with the extended battery+cover it didn't feel right to me(it bulged out a bit) and the there was a gap on the underside of the camera from the back being pushed out.
I switched back to the regular battery and kept using the extended battery case with the inductive coil and there is no bulge or anything, worth dropping 300mah for wireless charging IMO
Edit: Shaved away more of the back grid(and trimmed some copper tape that was kind of interfering with the cover closing) and all is well with the extended battery!
I did the same thing but I also shaved off the "grid" on the back of the door.
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Accord281 said:
I did the same thing but I also shaved off the "grid" on the back of the door.
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Click to collapse
And that made I so the extended battery fit?
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Natolx said:
And that made I so the extended battery fit?
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Click to expand...
Click to collapse
It will fit with the extended battery if you shave off the "grid". Albeit, very snugly.
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I did a touchstone mod for my Droid Charge, but I value NFC (and the warranty) too much to do this for my GN. Nonetheless kudos to the OP cuz I definitely wanted to attempt a touchstone mod for this phone.
knyghtryda said:
I did a touchstone mod for my Droid Charge, but I value NFC (and the warranty) too much to do this for my GN. Nonetheless kudos to the OP cuz I definitely wanted to attempt a touchstone mod for this phone.
Click to expand...
Click to collapse
Nfc is intact if you follow the guide. Also I didn't notice any tripwire stickers or anything inside and their is no soldering so I so I don't see how they would know I opened it up.
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Natolx said:
Nfc is intact if you follow the guide. Also I didn't notice any tripwire stickers or anything inside and their is no soldering so I so I don't see how they would know I opened it up.
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Click to expand...
Click to collapse
Even with that big coil in the way? Nice! I may have to attempt this at some point then, though I really don't want to give up my extended battery in order to make this fit...
It does fit without the extended battery removed its just really tight and the back doesn't fit "well"(its especially hard to get all the tabs to stay in when you first put it on). Trimming away some more of the plastic may help. I'm probably going to try that at some point.
Aren't you fritned of dust comming between your screen and the phone now you've opened it like that ?
juju2lose said:
Aren't you fritned of dust comming between your screen and the phone now you've opened it like that ?
Click to expand...
Click to collapse
The screen stays attached to the rest of the phone, all you take off is the plastic "ring" around the phone.
Brilliant! Copper Tape is a great idea. Seems this would be pretty easy to do. I just need the Starter Kit and the copper tape....
I got this to do the similar mod, just one wire and copper tape is needed, and the warranty isn't voided, this replacement part only cost me a few $ from china.
one wire to solder the pin indicate with the white dot, and the copper tape just needed to touch the sim card holder, the two ends goes to the two connectors on the touchstone coil.
just a simply explaination.
will do the mod later on.
kms108 said:
I got this to do the similar mod, just one wire and copper tape is needed, and the warranty isn't voided, this replacement part only cost me a few $ from china.
one wire to solder the pin indicate with the white dot, and the copper tape just needed to touch the sim card holder, the two ends goes to the two connectors on the touchstone coil.
just a simply explaination.
will do the mod later on.
Click to expand...
Click to collapse
This looks like it would be a lot more involved,
1. It would require VERY precise soldering job to the back of the USB. This is way beyond most people's abilities.
2. It requires you to remove the circuit board from the screen whereas the other method does not.
On the other hand your method probably isn't capped at 500maH
it's a straight forward take apart,even if i mess up the part, it goes into the bin, that why i got an extra piece.
just a blob of solder on the usb and two on the touchstone coil, if you search the net, it's the same method that was used on the i9000, even the usb will work and does not affect any function of the phone.
I modded mine with the Palm/touchstone mod. When I first did the install, I was getting the bulge as mentioned.. after shaving down the back cover and doing some repositioning - it fits fine. No bulge, no extra pressure.. you wouldn't even know it was there.
Also installed the stronger magnets. This way, I installed the touchstone in my car as a car dock and used tasker to launch car home when docked.
Probably the best mod I've ever done. Very simple if you follow the instructions in the link.
MynticeLX said:
I modded mine with the Palm/touchstone mod. When I first did the install, I was getting the bulge as mentioned.. after shaving down the back cover and doing some repositioning - it fits fine. No bulge, no extra pressure.. you wouldn't even know it was there.
Also installed the stronger magnets. This way, I installed the touchstone in my car as a car dock and used tasker to launch car home when docked.
Probably the best mod I've ever done. Very simple if you follow the instructions in the link.
Click to expand...
Click to collapse
Which stronger magnets did you install? I'm thinking of doing the same thing with mine... ^_^
yoni45 said:
Which stronger magnets did you install? I'm thinking of doing the same thing with mine... ^_^
Click to expand...
Click to collapse
Used these - http://www.kjmagnetics.com/proddetail.asp?prod=D401-N52
MynticeLX said:
Used these - http://www.kjmagnetics.com/proddetail.asp?prod=D401-N52
Click to expand...
Click to collapse
Does that screw with the compass at all?
knyghtryda said:
Does that screw with the compass at all?
Click to expand...
Click to collapse
They don't seem to on mine. Also, order a few extra magnets because they trend to break if you drop them.
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Why does this have to go into the phone and void the warranty. Personally I use a case without cutouts for the pogo pins so i can just attach the tape to the pogo pins right?

[Q] Impossibly thin back cover!!

Just bought my Note 2. The battery came half full so it's charging right now.
The first thing I noticed was the impossibly thin back cover and wondered how many people have managed to break theirs...
It'd be fine if it were made of carbon fiber, but plastic this thin will eventually break, no matter how malleable it is. For crying out loud, I've seen sheets of paper that are thicker than this!
How many of you have broken it already?
It's not going to break under normal use. If you take it off and bend it 90 degrees maybe, but it's not just going to spontaneously shatter on you.
Most people use a case so it wont break from dropping.
Ive never felt like it was going to break when removing or replacing it either.
As long as your not trying to break it, it wont break from normal use.
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The thinner it is the less chance it will break, crack or split.under normal use. I have had mine for just over 3 months and have removed it maybe 10 times. It still loks like new. You should be more worrried about the front anyway. A new case cost buttons in comparrison with the screen or digitizer.
People said the same thing about the galaxy s 2 back cover when that came out. Check out this video of it https://www.youtube.com/watch?v=Fu5qy6gffbs&feature=youtube_gdata_player
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Here's another video for you:
http://www.youtube.com/watch?v=ErXqnQKs-tA
Samsung's been using this stuff for years for a simple reason - it's light, and strong.
- Frank
Been using s2 before this and never heard of broken backcover. You would be surprise how malleable and strong it is.
Now a broken screen is another matter that you should be more concern about.
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They must create it like that to make the device light
I changed the back cover. Cheap and cool.
http://www.ebay.com/itm/Hot-Golden-Metal-back-cover-battery-door-case-for-Samsung-Galaxy-Note2-N7100-/150962863292?pt=PDA_Accessories&hash=item2326167cbc
My god that is super blingy
i dropped mine from like 15 cm from the ground went it came flying out my bag, it cracked, you can barely notice it
but once i know it's there it ****ing bothers
Well buy a replacement, they're cheap.
Every 2-3 days I replace my battery with a charged one and I have done this with my note N7000 as well as my current N7100. This had led me to zero issues, not even a piece of the battery casing on either phone have broke off. These were designed very well where they will hold up to more than your everyday usage.
desirer said:
I changed the back cover. Cheap and cool.
http://www.ebay.com/itm/Hot-Golden-...863292?pt=PDA_Accessories&hash=item2326167cbc
Click to expand...
Click to collapse
Just a quick heads up for battery cover buyers:
The item listing doesn't say whether this cover contains the NFC antenna like the Samsung covers do. I know some of the aftermarket covers don't have it. Anyone wanting to retain NFC functionality should be sure and check this before ordering an aftermarket Note 2 battery cover.
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Well mine got nfc on it. And even it doesnt got one its just $0.99
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desirer said:
Well mine got nfc on it. And even it doesnt got one its just $0.99
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Click to collapse
As it's a metal back cover I don't think the NFC will work.
Someone posted in the accessories section saying they had bought a metal back cover with NFC, however upon testing it the NFC didn't actually work.
For someone like me in the UK though that's hardly an issue, NFC isn't widely used here, the only use we have for it now is if we want to use NFC tags, and that's about it.
FWIW, I have an Epic 4G that uses the same thin plastic back. I've had that phone for 2 years and there are no cracks, damage to the phone or anything. Actually looks pretty darn new, save for where some of the clearcoat is coming off around the speakerhole. Of all the things to be concerned about on this phone, the back is the least of my worries.

Here's an accessory to extend/add NFC antenna points to Android devices

I thought I'd add some actual NFC hardware 'hacking' to this forum.
http://www.nfcbrief.com/2013/01/flomios-nfc-accessories-extend-antenna.html
These accessories don't make the wireless field bigger, but they allow you to add up to 3 wired NFC antenna contact points, up to 90cm away from the device. I'd imagine some people here might be able to make their own extenders.
What would be awesome is if they used some sort way to extend the range by having am external coil resonate at the same frequency as the internal coil so you don't have to open your device.....just a thought
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Awesome.
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Pretty cool - hand't heard of that before.
extend/add NFC antenna points to Android devices
Wow. Awesome man! :good:
That NFC "band-aid" solution doesn't see to be a bad idea, has anyone tried it out yet and saw how it works?
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Impedance matching
I bet you could get even further by impedance matching the wiring. Try using some balanced feed line or twisted pair with a shield. The trick will be measuring the correct impedance.
its cool I like also that
Yes, NFC extenders/extensions are easy to build, I've built dozens for our marketing company. All you need to do is have a close approximation of the size and shape of the antenna and a matching length of wire on the other end. I use 32 gauge magnet wire and 3D printed forms, it allows me to move the 'hot spot' from the back to the side or top of the tablet. I use Gorilla tape to adhere the coil in position on the back, no modifications to the tablet are required.
I want to make an extender to move the distance by about six inches. Any tips would be greatly appreciated...

Decent active cradle or charger friendly car holder

Has anyone found a decent car holder for the phone?
I spend most of my time in my van using the Z1 as my Sat nav so would like one that I can charge it with too...
Sony dropped the ball on their own holder, the one part covers the open magnetic charge port so would of been easy to have made it an active cradle... Tut tut sony!
Tried to view the brodit one but won't let me view their site on my phone for some reason...
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spice boy said:
Has anyone found a decent car holder for the phone?
I spend most of my time in my van using the Z1 as my Sat nav so would like one that I can charge it with too...
Sony dropped the ball on their own holder, the one part covers the open magnetic charge port so would of been easy to have made it an active cradle... Tut tut sony!
Tried to view the brodit one but won't let me view their site on my phone for some reason...
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Click to expand...
Click to collapse
A bit pricy but here you go
http://www.mobilefun.co.uk/brodit-active-holder-with-tilt-swivel-for-sony-xperia-z1-p41643.htm
Every time I have upgraded a phone I also had to upgrade my car holder because I have always bought "official car dock" and therefore spend a pretty penny in these things. This time I decided to invest in quality universal holder. After some Googlin I found the Ram MOUNT system. It's a bit expensive but the quality is top notch and it will work with my future phone upgrades too.
What's special with this holder is that it consist of different part that you can upgrade depending your needs.
I bought this kit:
http://www.amazon.com/Composite-Suction-Mount-Universal-X-Grip/dp/B006QRHZJK/ref=pd_cp_e_0
You can find some better deals from eBay thou.
I've used the Tetrax XWAY for the last 11 months with no problems at all!
http://www.tetrax.com/us/products/xway-line
you just get a cheap case and stick on a metal disc which comes with the pack and then you attach the X way to an air vent! Had Zero issues with the phone flinging off!
Here's some pics on my G+ https://plus.google.com/100283721448868062697/posts/b6KRyHgFx27
I've tried a fair few mounts, suction cups and all sorts and if you don't mind sticking a disc on the case or you can get a case you just want to use for the car then i can't recommend this enough!
Got the Brodit active mount. Charges quickly, and I've added a nfc sticker to it, to enable BT, etc when I put the phone in.
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I bought this this windscreen mount specifically for z1 from amazon for £9, I've now modified it slightly by sticking a magnetic charging cable to the bottom with a bit of black sugru and so have an active dock ( which took less than 5 minutes to do)
The cable cost £5 on ebay, so I have a dedicated car dock which charges for my phone for £15
http://www.amazon.co.uk/gp/aw/d/B00FW19A8K/ref=ya_aw_oh_pit
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Thanks all, will investigate all the options above
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I'm looking for a new car holder for my Z1, currently I've got a universal one that sticks to the window and it's annoying as when I put the phone in and close it tight it then either activates the camera or volume keys!
Anyone recommend a decent windscreen holder that grips the phone at the top and bottom of the phone?
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I just went on holiday in my camper van, I just used the magnetic charging dock (I just sat it on the dash board but you could use some foam tape to attach it to the dash) .. The magnetic dock holds the phone pretty solid.
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http://www.xperiablog.net/2014/01/1...ystem/?utm_source=dlvr.it&utm_medium=facebook
What about this one
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sfkaudi said:
http://www.xperiablog.net/2014/01/1...ystem/?utm_source=dlvr.it&utm_medium=facebook
What about this one
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Click to expand...
Click to collapse
That's not going to be cheap, plus it's a cd player and mine is in built to the dash..... I've just bought a holder off eBay for £5 it holds the device in top right and bottom right corner and on the left side where magnetic charger is, hopefully if it's stable enough I'll be fine as it doesn't appear to interfere with the charging port or the keys.
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So this is the car holder I bought off eBay http://pages.ebay.com/link/?nav=item.view&id=121251759597 works well for £5!
Holds the phone sturdy without covering any ports etc.
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So does anyone know any car holder that includes the magnetic charging system apart of the one from Brodit? Or any home workaround with the magnetic charging cable? It would be fine if it has the form factor of the official one (at the top of the dashboard).
I'm really desperate with this. :crying:
I've just received the Brodit active holder today with a ProClip for my Honda's A pillar. Not installed it yet but I'm really happy with the design and build of it.
I got myself one of these after systematically breaking or having forced upgrades of each of my previous ones: Arkon SM678 Removable No Glue Car Dash Mount for Extra Large Phones & 7" Tablets - http://www.ebay.co.uk/itm/400436098579
It holds up to roughly a 8" tablet in landscape mode (which I use on long journeys - finally a use for that Samsung Tab 7.7), or phones larger even than a Z1 (I suspect the ZU would fit).
Actually glad it does not have a built in charger, means I can use a magnetic cable day-to-day when my Z1 is in, and swap out for the custom Galaxy Tab cable on long journeys.

[Q] textured "grip" replacement battery door?

I'm looking for a replacement battery door (stock battery) that is unobtrusive, doesn't reduce signal or GPS, and is a bit less slippery than the stock one.
I found one with pleather texture in black on ebay http://www.ebay.com/itm/Black-Leather-Housing-Battery-Door-Back-Cover-for-Samsung-Galaxy-Note-2-II-N7100-/190901629604?pt=US_Cell_Phone_PDA_Cases&hash=item2c729fb2a4]
The ad states Fit Note 2 / N7100 global version only
I'd thought the outer parts of the N7100 and I317 were identical (so this might work), but maybe I got that wrong(?)
So, any idea if this'll fit and / or got a different replacement door that'll work. Really just looking for textured plastic like my ancient Galaxy SII.
Thanks!
I'd check further to see if it has NFC connects and if they line up - if that matters to you.
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Zen Arcade said:
I'd check further to see if it has NFC connects and if they line up - if that matters to you.
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Click to expand...
Click to collapse
Or you could always do the nfc hack
@Bajanman did it so you can get some info from him
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Zen Arcade said:
I'd check further to see if it has NFC connects and if they line up - if that matters to you.
Click to expand...
Click to collapse
Ah! there's an NFC antenna in the battery door (and I'm an idiot for not having noticed). Sam did something similar but the GPS antenna with the S4G and the GPS on that phone was a constant letdown.
It also makes sense that this would differ between the various Note2 versions as they vary in radios, so different antennas.
Yes, if you wouldn't mind checking - I use NFC tags for some Tasker actions. I'm guessing the contacts won't line up, hence the eBay seller's comment.
Thanks!
bobkoure said:
Ah! there's an NFC antenna in the battery door (and I'm an idiot for not having noticed). Sam did something similar but the GPS antenna with the S4G and the GPS on that phone was a constant letdown.
It also makes sense that this would differ between the various Note2 versions as they vary in radios, so different antennas.
Yes, if you wouldn't mind checking - I use NFC tags for some Tasker actions. I'm guessing the contacts won't line up, hence the eBay seller's comment.
Thanks!
Click to expand...
Click to collapse
Well... when I said "I'd", I meant "You'd" ...
But I will offer this - here's a similar listing for the stock back cover for the i317 (compare this to the picture in the seller's listing):
http://www.ebay.com/itm/OEM-Battery...17-Grey-with-NFC-/130859205705#ht_2692wt_1273
Note that it has two metal contacts lacking from the international version. I don't know if that matters but given that they are integrated with the antenna, and the phone has corresponding contacts, I would expect so.
Maybe a slim case with a similar surface material would be another option?
Or you can mod your back cover.
Sand the back a bit and spray rhino liner on it ( it's grip)
Or use a fabric
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Zen Arcade said:
Well... when I said "I'd", I meant "You'd" ...
Click to expand...
Click to collapse
Yeah, sorry - got the impression you had both models somewhere about and just had to pop the backs off and look.
Thanks!
Looks like I'm on to finding a, OEM cover and modding that, which shouldn't be super hard...
eZdubzitmk4 said:
Sand the back a bit and spray rhino liner on it ( it's grip)
Click to expand...
Click to collapse
Now my plan to mod the back a tad. I was going to use plastidip http://www.eastwood.com/plasti-dip-aerosol-11-oz-black.html.
I hadn't thought of rhino liner as I thought that was bulk application.
[edit]
Actually, I think I'll just sand it down with semi-coarse grit, say 300, and see if that's non-slip enough as-is.
[/edit]
Here's a cheap, stock case option... thin bumper case from Samsung.. You could scuff that up and save your phone....
http://www.amazon.com/Galaxy-Protective-Bumper-Cover-Black/dp/B009M5L65C
http://www.amazon.com/Caseology-Sam...d=1391507834&sr=1-1&keywords=caseology+note+2

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