Welcome to the Android Central Forums Create Your Account or Ask a Question Answers in 5 minutes - no registration required!
Results 1 to 10 of 10
Like Tree1Likes
  • 1 Post By Caleb Pelton
  1. Thread Author  Thread Author    #1  
    Kage_'s Avatar

    Posts
    434 Posts
    Global Posts
    438 Global Posts

    Default Weird repeating tone when phone is near my credit cards

    OK, I put my phone on my wallet like I do on occasion to keep them together. Tonight though my phone started a weird repeating tone. I narrowed it down and when my phone is near one of my credit cards is when it starts making the tone. Anyone else seen this any why is it doing it?

    Sent from my Nexus 5 using AC Forums mobile app
  2. #2  

    Default re: Weird repeating tone when phone is near my credit cards

    It's probably the NFC (Near Field Communication) tone. If you don't use NFC for anything, you can turn it off in Settings>Wireless & Networks, tap More ..., then uncheck NFC.
  3. Thread Author  Thread Author    #3  
    Kage_'s Avatar

    Posts
    434 Posts
    Global Posts
    438 Global Posts

    Default re: Weird repeating tone when phone is near my credit cards

    Here's a short video for what I'm hearing:

  4. #4  

    Default re: Weird repeating tone when phone is near my credit cards

    As B. Diddy indicated, that's NFC.

    Sent from my Nexus 4 using Tapatalk 2
  5. Thread Author  Thread Author    #5  
    Kage_'s Avatar

    Posts
    434 Posts
    Global Posts
    438 Global Posts

    Default re: Weird repeating tone when phone is near my credit cards

    Hummm OK, why would NFC be interacting with with my credit cards. Any way turning off NFC did stop the tone.

    Sent from my Nexus 5 using AC Forums mobile app
  6. #6  

    Default re: Weird repeating tone when phone is near my credit cards

    Many credit cards have an NFC or RFID chip as well, which can be used to pay by just waving the card in front of a sensor, as opposed to having to swipe the magnetized bar in a reader. The tone you're hearing is presumably your device detecting a nearby NFC chip and prompting you whether you want to do anything. Incidentally, NFC chips in your credit card do raise the possibility of fraud or theft by thieves using NFC apps to lift info, as mentioned here: Can an App Steal Your Credit Card Data?. That's why you're starting to see ads for credit card cases or wallets that can block NFC.
  7. #7  
    crxssi's Avatar
    Linux: The power beneath

    Posts
    2,150 Posts
    Global Posts
    2,469 Global Posts

    Default re: Weird repeating tone when phone is near my credit cards

    Quote Originally Posted by Kage_ View Post
    Hummm OK, why would NFC be interacting with with my credit cards. Any way turning off NFC did stop the tone.
    Yep- that is NFC (in your video)! If you have NFC enabled, then the phone will interact with any NFC chip it "sees" (which means within a few mm of the back). Some credit cards have such chips... especially American Express.

    Yes, you can turn off NFC under settings-> more-> NFC
    Click "Thanks" and/or "Like" button on posts where someone helped you or you liked the posting. Nexus 5 (T-Mobile), Nexus 10, Evo LTE, Evo 3D, Evo 4G
  8. Thread Author  Thread Author    #8  
    Kage_'s Avatar

    Posts
    434 Posts
    Global Posts
    438 Global Posts

    Default re: Weird repeating tone when phone is near my credit cards

    I downloaded NFC info app and used it to scan cards. I found two that responded to NFC. One was a credit card and the other was an identity card. My guess is NFC is freaking out since there are two cards and it can decide on which to read.

    Sent from my Nexus 5 using AC Forums mobile app
  9. #9  
    crxssi's Avatar
    Linux: The power beneath

    Posts
    2,150 Posts
    Global Posts
    2,469 Global Posts

    Default re: Weird repeating tone when phone is near my credit cards

    Quote Originally Posted by Kage_ View Post
    I downloaded NFC info app and used it to scan cards. I found two that responded to NFC. One was a credit card and the other was an identity card. My guess is NFC is freaking out since there are two cards and it can decide on which to read.
    It might also be that it see the chip and yet isn't getting a response. Or that it is incompatible. Lots of possibilities. I like your idea the best, though.
    Click "Thanks" and/or "Like" button on posts where someone helped you or you liked the posting. Nexus 5 (T-Mobile), Nexus 10, Evo LTE, Evo 3D, Evo 4G
  10. #10  

    Default re: Weird repeating tone when phone is near my credit cards

    Kudos for the video to help diagnose.

    Posted via Android Central App
    B. Diddy likes this.

Similar Threads

  1. Replies: 18
    Last Post: 10-22-2014, 12:16 AM
  2. Replies: 2
    Last Post: 09-09-2014, 10:13 PM
  3. help! my note 3 turned into a brick
    By Eric Bentley in forum Verizon Samsung Galaxy Note 3
    Replies: 4
    Last Post: 05-26-2014, 02:28 PM
  4. Advice for rooting my SM-P605
    By charles777 in forum Samsung Galaxy Note 10.1 (2014)
    Replies: 2
    Last Post: 03-17-2014, 06:07 PM
  5. Where is Xbox Music Pass Music Stored...
    By ambientdata_digital_forensics in forum Samsung Galaxy Note 3
    Replies: 1
    Last Post: 03-16-2014, 08:58 PM

Posting Permissions