I can't find much information on NFC readers on our MXP. Can our phones do this? I'm looking to copy an NFC card and keep that data on the MXP and then use that instead of the physical card, is this possible and how would I go about it?
Highly unlikely I think. I don't know if such thing exist even on other phones. But we can emulate that by getting an nfc sticker and stick it inside the phone back cover, while making sure that it is not within the phone nfc sensor detection.
Related
Right, I got my Vario II a couple of days ago. Its great, but I was wondering something - could I cut to fit my Oyster card to sit underneath the battery cover? Anyone tried this? Does anyone know how much I can trim off of the card? Would be great to just get the phone out to swipe with!
Cheers
Chris
I can't even fit a spare 1Gb MicroSD under it without the cover bulging, so I doubt an Oyster card would fit without some major mod's. You can't trim much (if any) off it, the RF coils are pretty much all the way around the edges of the card. Great idea though!
I just put my Oyster card next to the SD spacer(don't have a Micro SD card yet) and they are about the same thickness. I thought it might be the case with the coils, which is pretty annoying as the card really isn't far off fitting in. Any ideas if there are any pics showing a kinda 'xray' of the Oyster?
haha, you copying the Japanese on this? They too have the equivalent of Oyster cards (Suica, much more advanced with online usage if you have a card reader attached to your computer) which can be integrated into their mobiles. In fact, I do wonder if the technology of the 2 systems are teh same
I'm sure there must be a way to cut up the oyster card so that only the data bit remains? Anyone got a spare fiver to dissect an oyster card?
Oyster is a standard Mifare card.
Although I've not seen "inside" the oyster - a mifare card has a coil slightly larger than the size of a 50p in the centre - with the chip either inside or outside of the coil.
N
Right fellows I have tried to search nearly an hour to find-out what’s & where the chip is inside the Oyster but no joy, finally I have tried one another card to just give it a try and I am sadly declaring that it is NOT possible at all to sandwich the oyster card between the battery & its cover (I have tried on my XDA-IIi -- Alpine), even though I have tried to press the cover so hard that the sliding latches could break in a split second. Check the pictures.
Sidd
So why would you want to take out your highly desirable phone in a crowded tube station?
Do you need the insurance money?
Maybe you could attach credit cards to a lanyard, hang them from the phone and have your PIN number tattooed to your forehead.
Anyway I am carrying my oyster in the card slot of my XDA-IIi's leather pouch and touching the pouch on the scanner every day, works fine for me.
I think this is more secure from the prying eyes and for the scratch protection of the device.
Sidd
i would say yes, with some modification. check out this link if you are still interested. I plan to do this for my Hero in the coming weeks
http://www.skeptobot.com/2008/05/time-lapse-vid-of-dissolving-oyster.html
I noticed two things about the NFC reader on the N7
1) It only reads from the back of the device
2) It only reads when another device/RFID is about 1cm away or less
Is the NFC sensor movable/power adjustable? I want to move it to the front of the device, but also be able to read other devices from a farther distance (5cm?)
The idea is that tablet is embedded in a kiosk, people walk up to it and tap their NFC directly to the screen to interact
Not really. The antenna isn't very powerful. I tried using my NFC tags on the front but it would not work. I guess they assumed that you would be tapping the device onto the tag.
Sent from my Nexus 7 using xda premium
Perhaps a workaround...design a mount with a small opening behind the tablet, where people can "slide" their other nfc-enabled device back there to read
Hello,
I noticed today that I could not read (or detect) RFID cards, through the use of NFC TagInfo. At first I thought I was using a defective card, but after trying out every card that I could detect before (and not getting any kind of response), I thought it might have been the phone. The thing is, I don't see why it would have stopped working.
By testing, I mean enabling NFC and opening NFC TagInfo (or another RFID reading app) and holding the phone against the card (which would previously bring up some kind of detection at least). Instead, the app displays "Scan a tag..." continuously and seems to expect a tag. (similar behavior with other apps - I don't think it's software related) Previously when using transit card, at least NFC TagInfo would tell me it found a card but couldn't read it's content (I'm okay with that). I'm thinking it's a hardware issue - I tried removing and reinserting the battery thinking it might have been the contacts but alas. Is there any other contacts used for NFC on the S4?
Note: I don't want to read RFID cards or edit them. I just want to verify if 1) NFC works on the phone and 2) if my cards in my wallet still works _with their intended reader_ (I'm just checking if the antenna inside the card isn't broken and I have no other means other than this phone).
Relevant info:
- Stock battery (thus with an antenna; proven to work in the past). Previously used replica batteries (with no antenna) but switched back to the stock
- DualTek case with original back cover (tested without case and/or without cover)
- 4.4.2
- Stock rom
- Rooted
- TWRP loader (I think?)
- I have opened and fixed the phone twice so far (removed, cleaned and replaced the USB board)
- Titanium backup with only S Voice frozen; everything else left untouched.
--
Reason for thread: Other threads dealing with NFC-related problems only seemed to be about software issues or inability to connect to a particular phone (S Beam/Android Beam) or read a particular tag. Couldn't find info on the NFC hardware and testing it's functionality.
I have the same issue. I337m, rooted stock 5.0.1, twrp. Nfc just never detects anything even though it turns on.
lemonloaf said:
Hello,
I noticed today that I could not read (or detect) RFID cards, through the use of NFC TagInfo. At first I thought I was using a defective card, but after trying out every card that I could detect before (and not getting any kind of response), I thought it might have been the phone. The thing is, I don't see why it would have stopped working.
By testing, I mean enabling NFC and opening NFC TagInfo (or another RFID reading app) and holding the phone against the card (which would previously bring up some kind of detection at least). Instead, the app displays "Scan a tag..." continuously and seems to expect a tag. (similar behavior with other apps - I don't think it's software related) Previously when using transit card, at least NFC TagInfo would tell me it found a card but couldn't read it's content (I'm okay with that). I'm thinking it's a hardware issue - I tried removing and reinserting the battery thinking it might have been the contacts but alas. Is there any other contacts used for NFC on the S4?
Note: I don't want to read RFID cards or edit them. I just want to verify if 1) NFC works on the phone and 2) if my cards in my wallet still works _with their intended reader_ (I'm just checking if the antenna inside the card isn't broken and I have no other means other than this phone).
Relevant info:
- Stock battery (thus with an antenna; proven to work in the past). Previously used replica batteries (with no antenna) but switched back to the stock
- DualTek case with original back cover (tested without case and/or without cover)
- 4.4.2
- Stock rom
- Rooted
- TWRP loader (I think?)
- I have opened and fixed the phone twice so far (removed, cleaned and replaced the USB board)
- Titanium backup with only S Voice frozen; everything else left untouched.
--
Reason for thread: Other threads dealing with NFC-related problems only seemed to be about software issues or inability to connect to a particular phone (S Beam/Android Beam) or read a particular tag. Couldn't find info on the NFC hardware and testing it's functionality.
Click to expand...
Click to collapse
NFC on my S4 also doesn't work. I have new battery, original supposedly, and it looks like it has an antenna in it. Nothing happens. At all. Is there a way to detect if the antenna i faulty? Any logs I can look into or such?
Original Question
I have a refurbished I9505 from China. (Ahh bless)
When it arrived the MicroSD and NFC didn't work.
I have stripped the phone down and re-seated the MicroSD/SIM card module connector.
This has re-enabled the MicroSD card, but NFC still doesn't work.
I have tried a VISA card, NFC tags and other touch to transmit/start devices like speakers and Sony phones.
Not a beep. :crying:
I have an NFC antenna battery and NFC is switched on in the settings.
Google Play NFC test apps say NFC is on and available.
Via Odin and/or Kies I have installed/re-installed a number of Android 4.4.2 - 5.0.1 ROMs with factory/cache resets.
I do note there is what almost looks like a cut mark across the back of the battery and wonder if this has damaged the Antenna/battery in some way.
The 'cut' mark is on the inner side of the battery and one would assume the antenna would be on the outer/back cover side of the battery.
I have ordered a new NFC battery in case its a poor/bad connection or something.
I've read of several people who have had problems with NFC, but there doesn't seem to be any real answers(that I've managed to find) outside of NFC battery Antenna and switch NFC on. (basic stuff)
I do note the Broadcom BCM20794 NFC controller IC is located under the MicroSD/SIM module which looks like a bit of a mission to remove to view the NFC chip.
AND there is every chance the chip is soldered to the main board and may not be available for purchase.
Maybe in the to hard basket for me....maybe...
Does anyone know how robust these NFC chips on the main board are AND are they a 'known' point of failure.
Update (Fix)
I got a replacement NFC battery for the SG4 I9505 and this restored NFC functionality.
The replacement battery is dated Nov-2015.
The Original NFC battery that came in my Chinese refurbished phone was manufactured in 2016.
It was noted that the battery had a small scratch on the back of it with the letters LQ written in felt pen.
Does "LQ" stand for "Low Quality" and was the small scratch on the back of the battery a way of noting it had not passed a prescribed test?
All conjecture, but it did NOT support NFC and the new replacement battery DOES support NFC, so one can only guess.
So, new battery fixed NFC problem in my case.
Does someone know the location of the NFC antenna on the Nothing Phone 1?
I would say above wireless charging coil
This is my first phone with NFC so I need to get used to the reader placement. I get detections the most often in the bottom left quadrant of the charging coil (looking at the phone from the back).
I also have best luck when the phone is unlocked, but I've seen it detect my yubikey from sleep after I accidentally placed my phone on top of it. Can't reproduce the latter though.
I haven't really thought about it because it reacts every time I use Google pay. I don't have to move the phone around to "find the chip". That used to happen on my old phone.