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Android Enthusiasts

Q&A for enthusiasts and power users of the Android operating system

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0 votes
1 answers
111 views
"NFC service has stopped" keeps popping up on the screen every 30 seconds
The following error keeps popping up on the screen every 30 seconds on my Blackview BV8800 with Android 11. > NFC service has stopped Steps taken: - I already disabled NFC on my phone. - I went to Settings -> NFC app and **clear cache**. But still, nothing helped.
The following error keeps popping up on the screen every 30 seconds on my Blackview BV8800 with Android 11. > NFC service has stopped Steps taken: - I already disabled NFC on my phone. - I went to Settings -> NFC app and **clear cache**. But still, nothing helped.
Ian Strauss (1 rep)
Apr 2, 2025, 04:40 AM • Last activity: Apr 3, 2025, 04:25 PM
1 votes
0 answers
91 views
My com.android.nfc service keeps crashing, how can I pinpoint why/how it is crashing?
My `com.android.nfc` service keeps crashing, how can I pinpoint why/how it is crashing? Below is the `adb logcat` logs I have gathered, but nothing points me to what is causing the service to crash. This is repeated constantly and happens every 5 seconds. ``` 3369 5620 D ActivityTaskManagerServiceEx...
My com.android.nfc service keeps crashing, how can I pinpoint why/how it is crashing? Below is the adb logcat logs I have gathered, but nothing points me to what is causing the service to crash. This is repeated constantly and happens every 5 seconds.
3369  5620 D ActivityTaskManagerServiceExtImpl: preBindApplication record is null
15753 15753 E OplusCustomizePackageManager: mIOplusCustomizePackageManagerService is null
15753 15753 E OplusCustomizePackageManager: mIOplusCustomizePackageManagerService is null
15753 15753 E OplusCustomizePackageManager: isOplusCertificatePackage Errorjava.lang.NullPointerException: Attempt to invoke interface method 'boolean android.os.customize.IOplusCustomizePackageManagerService.isOplusCertificatePackage(java.lang.St ing)' on a null object reference
15753 15753 D ResourcesManagerExtImpl: applyConfigurationToAppResourcesLocked app.getDisplayId() return callback.displayId:-1
15753 15753 W ActivityThread: ClassLoader.loadClass: The class loader returned by Thread.getContextClassLoader() may fail for processes that host multiple applications. You should explicitly specify a context class loader. For example: Thread.setContextClassLoader(getClass().getClassLoader());
 3369  4367 I ActivityManager: Death received, pid = 15753, processName = com.android.nfc for thread android.os.BinderProxy@a60a167
 3369  4811 I ActivityManager: Process com.android.nfc (pid 15753) has died: pers PER
 3369  4811 W ActivityManager: Re-adding persistent process ProcessRecord{c8f2673 15753:com.android.nfc/1027}
 3369  3697 I ActivityManager: Start proc 15773:com.android.nfc/1027 for restart com.android.nfc
03-21 20:57:23.604  6499  6499 E AndroidRuntime: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.oplus.wirelesssettings/com.android.settings.SettingsActivity}: java.lang.NullPointerException: Attempt to invoke interface method 'int android.nfc.INfcAdapter.getState()' on a null object reference
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:4372)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:4569)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:126)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at android.app.servertransaction.TransactionExecutor.executeNonLifecycleItem(TransactionExecutor.java:179)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at android.app.servertransaction.TransactionExecutor.executeTransactionItems(TransactionExecutor.java:114)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:86)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2902)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at android.os.Handler.dispatchMessage(Handler.java:107)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at android.os.Looper.loopOnce(Looper.java:282)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at android.os.Looper.loop(Looper.java:387)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at android.app.ActivityThread.main(ActivityThread.java:9494)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at java.lang.reflect.Method.invoke(Native Method)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:600)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1005)
03-21 20:57:23.604  6499  6499 E AndroidRuntime: Caused by: java.lang.NullPointerException: Attempt to invoke interface method 'int android.nfc.INfcAdapter.getState()' on a null object reference
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at android.nfc.NfcAdapter.getAdapterState(NfcAdapter.java:1112)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at android.nfc.NfcManager.getDefaultAdapter(NfcManager.java:121)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at android.nfc.NfcAdapter.getDefaultAdapter(NfcAdapter.java:889)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at com.oplus.wirelesssettings.nfc.NfcPreferenceController.(Unknown Source:12)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at com.oplus.wirelesssettings.nfc.c.buildPreferenceControllers(Unknown Source:7)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at com.oplus.wirelesssettings.nfc.c.createPreferenceControllers(Unknown Source:14)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at com.android.settings.dashboard.DashboardFragment.onAttach(Unknown Source:29)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at com.oplus.wirelesssettings.nfc.c.onAttach(Unknown Source:5)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at androidx.fragment.app.Fragment.performAttach(Unknown Source:49)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at androidx.fragment.app.s.c(Unknown Source:199)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at androidx.fragment.app.s.m(Unknown Source:124)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at androidx.fragment.app.m.d0(Unknown Source:277)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at androidx.fragment.app.m.i1(Unknown Source:84)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at androidx.fragment.app.m.a0(Unknown Source:21)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at androidx.fragment.app.m.e0(Unknown Source:1)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at com.oplus.wirelesssettings.a.switchToFragmentExt(Unknown Source:55)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at com.oplus.wirelesssettings.a.onCreate(Unknown Source:88)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at com.android.settings.SettingsActivity.onCreate(Unknown Source:0)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at android.app.Activity.performCreate(Activity.java:9192)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at android.app.Activity.performCreate(Activity.java:9164)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1544)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:4346)
03-21 20:57:23.604  6499  6499 E AndroidRuntime:        ... 13 more
03-21 20:57:23.934 21462 21484 F libc    : Fatal signal 6 (SIGABRT), code -1 (SI_QUEUE) in tid 21484 (android.hardwar), pid 21462 (android.hardwar)
03-21 20:57:23.961 21571 21571 F DEBUG   : Process name is /odm/bin/hw/android.hardware.nfc-service.nxp, uid is 1027, not key_process
03-21 20:57:23.961 21571 21571 F DEBUG   : keyProcess: 0
03-21 20:57:23.961 21571 21571 F DEBUG   : *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
03-21 20:57:23.961 21571 21571 F DEBUG   : Build fingerprint: 'OnePlus/CPH2655/OP5D55L1:15/AP3A.240617.008/V.R4T3.1c79fbd_1e174_440e:user/release-keys'
03-21 20:57:23.961 21571 21571 F DEBUG   : Revision: '0'
03-21 20:57:23.961 21571 21571 F DEBUG   : ABI: 'arm64'
03-21 20:57:23.961 21571 21571 F DEBUG   : Timestamp: 2025-03-21 20:57:23.948224098-0700
03-21 20:57:23.961 21571 21571 F DEBUG   : Process uptime: 3s
03-21 20:57:23.961 21571 21571 F DEBUG   : Cmdline: /odm/bin/hw/android.hardware.nfc-service.nxp
03-21 20:57:23.961 21571 21571 F DEBUG   : pid: 21462, tid: 21484, name: android.hardwar  >>> /odm/bin/hw/android.hardware.nfc-service.nxp >> /odm/bin/hw/android.hardware.nfc-service.nxp >> /odm/bin/hw/android.hardware.nfc-service.nxp <<<
03-21 20:57:33.977 23360 23360 F DEBUG   : uid: 1027
03-21 20:57:33.977 23360 23360 F DEBUG   : tagged_addr_ctrl: 0000000000000001 (PR_TAGGED_ADDR_ENABLE)
03-21 20:57:33.977 23360 23360 F DEBUG   : pac_enabled_keys: 000000000000000f (PR_PAC_APIAKEY, PR_PAC_APIBKEY, PR_PAC_APDAKEY, PR_PAC_APDBKEY)
03-21 20:57:33.977 23360 23360 F DEBUG   : signal 6 (SIGABRT), code -1 (SI_QUEUE), fault addr --------
03-21 20:57:33.977 23360 23360 F DEBUG   :     x0  0000000000000000  x1  0000000000005b1b  x2  0000000000000006  x3  00000076449e8990
03-21 20:57:33.977 23360 23360 F DEBUG   :     x4  2f3d485441500000  x5  2f3d485441500000  x6  2f3d485441500000  x7  0080d0c1d4c8bdaf
03-21 20:57:33.977 23360 23360 F DEBUG   :     x8  00000000000000f0  x9  00000076c9c8b378  x10 ffffff80ffffffdf  x11 fffffffffffffffd
03-21 20:57:33.977 23360 23360 F DEBUG   :     x12 00000076449e8480  x13 0000000000000008  x14 00000076449e85e8  x15 000000004a40580d
03-21 20:57:33.977 23360 23360 F DEBUG   :     x16 00000076c9d74e60  x17 00000076c9d5fac0  x18 0000007642fa8000  x19 0000000000005afc
03-21 20:57:33.977 23360 23360 F DEBUG   :     x20 0000000000005b1b  x21 00000000ffffffff  x22 0000000000000001  x23 00000076449e8f80
03-21 20:57:33.977 23360 23360 F DEBUG   :     x24 00000076cdaa28f8  x25 00000076cdaa1268  x26 00000076449e8a60  x27 00000076cda9d1b0
03-21 20:57:33.977 23360 23360 F DEBUG   :     x28 00000076cdaa2238  x29 00000076449e8a10
03-21 20:57:33.977 23360 23360 F DEBUG   :     lr  00000076c9cfaa68  sp  00000076449e8970  pc  00000076c9cfaa98  pst 0000000000001000
03-21 20:57:33.977 23360 23360 F DEBUG   : 7 total frames
03-21 20:57:33.977 23360 23360 F DEBUG   : backtrace:
03-21 20:57:33.977 23360 23360 F DEBUG   :       #00 pc 0000000000095a98  /apex/com.android.runtime/lib64/bionic/libc.so (abort+172) (BuildId: f4501bd873d8a85bd2dd833a169dec5f)
03-21 20:57:33.977 23360 23360 F DEBUG   :       #01 pc 0000000000044e34  /odm/lib64/nfc_nci.nqx.default.hw.so (phNxpNciHal_emergency_recovery(unsigned char) (.cfi)+252) (BuildId: e5c5a0ba31b03a6aff69fb79f0e48440)
03-21 20:57:33.977 23360 23360 F DEBUG   :       #02 pc 0000000000038238  /odm/lib64/nfc_nci.nqx.default.hw.so (phNxpNciHal_process_ext_rsp(unsigned char*, unsigned short*) (.cfi)+4876) (BuildId: e5c5a0ba31b03a6aff69fb79f0e48440)
03-21 20:57:33.977 23360 23360 F DEBUG   :       #03 pc 000000000002cc98  /odm/lib64/nfc_nci.nqx.default.hw.so (phNxpNciHal_read_complete(void*, phTmlNfc_TransactInfo*) (.cfi)+304) (BuildId: e5c5a0ba31b03a6aff69fb79f0e48440)
03-21 20:57:33.977 23360 23360 F DEBUG   :       #04 pc 000000000002bccc  /odm/lib64/nfc_nci.nqx.default.hw.so (phNxpNciHal_client_thread(void*) (.cfi)+560) (BuildId: e5c5a0ba31b03a6aff69fb79f0e48440)
03-21 20:57:33.977 23360 23360 F DEBUG   :       #05 pc 00000000000a7488  /apex/com.android.runtime/lib64/bionic/libc.so (__pthread_start(void*)+196) (BuildId: f4501bd873d8a85bd2dd833a169dec5f)
03-21 20:57:33.977 23360 23360 F DEBUG   :       #06 pc 0000000000099584  /apex/com.android.runtime/lib64/bionic/libc.so (__start_thread+68) (BuildId: f4501bd873d8a85bd2dd833a169dec5f)
03-21 20:58:28.891 24176 24207 F libc    : Fatal signal 6 (SIGABRT), code -1 (SI_QUEUE) in tid 24207 (android.hardwar), pid 24176 (android.hardwar)
03-21 20:58:28.924 25096 25096 F DEBUG   : Process name is /odm/bin/hw/android.hardware.nfc-service.nxp, uid is 1027, not key_process
03-21 20:58:28.924 25096 25096 F DEBUG   : keyProcess: 0
03-21 20:58:28.924 25096 25096 F DEBUG   : *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
03-21 20:58:28.924 25096 25096 F DEBUG   : Build fingerprint: 'OnePlus/CPH2655/OP5D55L1:15/AP3A.240617.008/V.R4T3.1c79fbd_1e174_440e:user/release-keys'
03-21 20:58:28.924 25096 25096 F DEBUG   : Revision: '0'
03-21 20:58:28.924 25096 25096 F DEBUG   : ABI: 'arm64'
03-21 20:58:28.924 25096 25096 F DEBUG   : Timestamp: 2025-03-21 20:58:28.912536513-0700
03-21 20:58:28.924 25096 25096 F DEBUG   : Process uptime: 53s
shrav (11 rep)
Mar 22, 2025, 04:07 AM • Last activity: Mar 23, 2025, 07:38 AM
2 votes
1 answers
67 views
NFC does not work with passive cards
I have an Xiaomi Mi Note 10 Pro phone, and there are some issue with NFC. I can use it to pay at shops, or to interact with banking terminals. However, when I try to scan a card, nothing happens, and my phone don't see it, though, it had no problems with that before (maybe a year ago), and also anot...
I have an Xiaomi Mi Note 10 Pro phone, and there are some issue with NFC. I can use it to pay at shops, or to interact with banking terminals. However, when I try to scan a card, nothing happens, and my phone don't see it, though, it had no problems with that before (maybe a year ago), and also another Xiaomi phone can read those cards with no effort. Yesterday I was repairing my screen, and also looked at NFC antenna and pins, that are used for connecting it to the motherboard, but nothing wrong there too. Maybe I'm missing some option in phone settings, that control that feature, and which I turned off with no purpose. *P.S. No software modifications are applied to my phone, bootloader is locked and have never been touched.*
lazba (21 rep)
Feb 16, 2025, 10:23 AM • Last activity: Feb 18, 2025, 09:20 AM
1 votes
0 answers
2744 views
Cloning room key card by using NFC
I live in a youth hostel of an university and we access our rooms and labs by using a contactless key card. I want to clone my card to my phone. Is it possible to copy when it is key protected? Can it be hacked?
I live in a youth hostel of an university and we access our rooms and labs by using a contactless key card. I want to clone my card to my phone. Is it possible to copy when it is key protected? Can it be hacked?
A.T. (11 rep)
Nov 23, 2014, 12:05 AM • Last activity: Jan 8, 2025, 08:30 PM
0 votes
0 answers
67 views
"NFC service not working" continuously pop up on Oukitel WP15
I've had "NFC service not working" continuously pop up on my Oukitel WP15. A couple of months ago, it started doing this. I went through some of the troubleshooting steps that are listed in this forum, like trying to force-stop the app, and trying to disable it. I tried to clear the cache and all so...
I've had "NFC service not working" continuously pop up on my Oukitel WP15. A couple of months ago, it started doing this. I went through some of the troubleshooting steps that are listed in this forum, like trying to force-stop the app, and trying to disable it. I tried to clear the cache and all sorts of stuff, but none of it worked, it kept popping back up. Then I downloaded an antivirus software (I think AVG), then it told me there was a corrupt app, that was an app for CDL testing. I deleted the app, the pop-up appeared again. I cleared the cache and the memory, and then I didn't see it again for 2 months. Now it's back. I've since done a couple of things like deleted a couple of apps and then reset the phone, and then it went away for like a half day. Then it's back. I have a lot of apps on my phone and folders. I don't want to have to restart my phone. Also, I don't even know a good app that will redownload all my other apps. I must have 200 to 300 apps on my phone. What do I do?
ADAM CRANE (1 rep)
Sep 22, 2024, 08:51 AM • Last activity: Sep 22, 2024, 12:24 PM
2 votes
1 answers
906 views
Turn off NFC permission for specific app?
When I put an NFC card near my Android 14 phone, a specific app (that I do not want being able to skim the data of every card I use with my phone) opens. Can I turn off "NFC read permission" for a specific app? This seems like a big security issue, and given that I can control camera, microphone, lo...
When I put an NFC card near my Android 14 phone, a specific app (that I do not want being able to skim the data of every card I use with my phone) opens. Can I turn off "NFC read permission" for a specific app? This seems like a big security issue, and given that I can control camera, microphone, location, etc. permissions for specific apps, I'm surprised I haven't been able to find any information on preventing a given app from receiving NFC read info. I want to be able to use NFC via other apps, so turning it off entirely is not helpful.
John Pardon (141 rep)
Sep 4, 2024, 08:11 PM • Last activity: Sep 4, 2024, 08:21 PM
1 votes
0 answers
37 views
Trying to use &#181;FR Nano Online wireless NFC RFID reader/writer as external NFC redear
I am trying to use &#181;FR Nano Online wireless NFC RFID reader/writer, as extension of my Galaxy A54's NFC capability. ie. I want to be able to scan NFC tags around my home using 'NFC tools' app without taking my phone out of my pocket. i already have portable power unit to power the device but wh...
I am trying to use µFR Nano Online wireless NFC RFID reader/writer, as extension of my Galaxy A54's NFC capability. ie. I want to be able to scan NFC tags around my home using 'NFC tools' app without taking my phone out of my pocket. i already have portable power unit to power the device but when I bluetooth the reader to my phone it stores tag UID in keyboard buffer instead of recognising it as a NFC tag. How do I configure the device to function as I intend? Cheers
Outlaw (11 rep)
Aug 22, 2024, 12:07 AM
1 votes
0 answers
349 views
Turning off "New tag collected: Empty tag" popup when holding OnePlus 12 next to OnePlus Watch 2?
I have the following hardware with software: - OnePlus 12 phone, model CPH2583: Android 14, OxygenOS CPH2583_14.0.0.802(EX01) - OnePlus Watch 2, model OPWWE231: Android 13, WearOS V6.0 I have NFC turned on my phone and watch, since I regularly use tap-to-pay and Google Wallet. However, when I place...
I have the following hardware with software: - OnePlus 12 phone, model CPH2583: Android 14, OxygenOS CPH2583_14.0.0.802(EX01) - OnePlus Watch 2, model OPWWE231: Android 13, WearOS V6.0 I have NFC turned on my phone and watch, since I regularly use tap-to-pay and Google Wallet. However, when I place my phone near my watch (for example, holding the phone in landscape with the hand that has my watch on it, leading to the NFC reader in the phone getting close to the watch), a "New tag collected" screen pops up: enter image description here I do not wish to turn off NFC on either device since I use both my phone and my watch for tap-to-pay. **Is there a way to turn off this pop-up?**
bigyihsuan (163 rep)
Jun 26, 2024, 04:28 PM • Last activity: Aug 20, 2024, 03:57 PM
0 votes
0 answers
48 views
Trying to use ETEKJOY ACR122U to add NFC to non-NFC Android phones. How's about app: MTools - Mifare ACR122 PN532?
The Motorola MOTO G PLAY is one of the very last Android phones that gets delivered (by XFinity Mobile) with no NFC capability. And yes, of course, I've got one. After numerous updates it runs Android 13. So along comes Ticketmaster with an ALL-NFC TICKET system. Tickets get stored in GOOGLE-WALLET....
The Motorola MOTO G PLAY is one of the very last Android phones that gets delivered (by XFinity Mobile) with no NFC capability. And yes, of course, I've got one. After numerous updates it runs Android 13. So along comes Ticketmaster with an ALL-NFC TICKET system. Tickets get stored in GOOGLE-WALLET. Frankly I'd rather spend $35 for a USB connected ACR122U run through an app than drop $150 to upgrade the phone. And when I do swap out the phone, move the ACR122U and download its app. Minimize security and data vulnerabilities. But is the MTools - Mifare ACR122 PN532 app up to it ?
sam-ipod-5 (11 rep)
Aug 1, 2024, 12:47 PM
1 votes
0 answers
60 views
For early Android phones lacking NFC does the ACR122U 13.56MHz Contactless Smart Card Reader-Writer add usable NFC?
The trigger problem, here, is finding a way to download a Ticketmaster NFC-based ticket with their Android app, store it in the Android Wallet, then use the ETEKJOY ACR122U to display the ticket for entry to a concert. The ACR122U is shown writing to the RFID poker chips. Same or different ? Practic...
The trigger problem, here, is finding a way to download a Ticketmaster NFC-based ticket with their Android app, store it in the Android Wallet, then use the ETEKJOY ACR122U to display the ticket for entry to a concert. The ACR122U is shown writing to the RFID poker chips. Same or different ? Practical explanation will be much appreciated !!
sam-ipod-5 (11 rep)
Jul 31, 2024, 12:36 AM
14 votes
2 answers
69585 views
How to emulate a NFC card with an Android phone?
I have installed several "NFC tools" apps, and I am able to **read** a NFC door card. It seems to be able to duplicate it (when I'll have a blank NFC card) or even **write** new NFC tags. But I'd like to do something else: **How to make my Android device act as a NFC tag?** Example: since I can read...
I have installed several "NFC tools" apps, and I am able to **read** a NFC door card. It seems to be able to duplicate it (when I'll have a blank NFC card) or even **write** new NFC tags. But I'd like to do something else: **How to make my Android device act as a NFC tag?** Example: since I can read and get the hexadecimal codes from my NFC door card, I'd like to make my smartphone *act as a NFC card*, so that, if I forget my door card, my smartphone could serve as a NFC tag. How to do this? PS: it is surely possible, because when paying with a smartphone ("contactless payment with phone"), the smartphone *acts as a NFC device indeed* for another reader (typically the shop credit card reader).
Basj (819 rep)
Nov 24, 2019, 09:15 PM • Last activity: Jan 21, 2024, 11:00 AM
0 votes
1 answers
1159 views
Smartphone cannot read NFC tag I use to enter my building
I have a tag that I use to enter my building. [![][1th]][1] And I see someone else in my building using his smartphone instead of the tag. I have downloaded the NFC tools app and it doesn't read the tag. It doesn't even show any response, nothing. Note that the NFC on my phone works without problems...
I have a tag that I use to enter my building. Image And I see someone else in my building using his smartphone instead of the tag. I have downloaded the NFC tools app and it doesn't read the tag. It doesn't even show any response, nothing. Note that the NFC on my phone works without problems. What is the problem?
mikuzan (1 rep)
Dec 31, 2023, 04:31 PM • Last activity: Jan 1, 2024, 08:04 AM
1 votes
1 answers
261 views
Setting a reminder for when you enter your car
Most of us have Android smartphones. At the same time, not all of us may have Android powered(/enabled) cars, but, may have to do something (such, as, check a note in the front drawer, or under the top light blocking panes, or do something next to the engine or other car part in the front hood, or g...
Most of us have Android smartphones. At the same time, not all of us may have Android powered(/enabled) cars, but, may have to do something (such, as, check a note in the front drawer, or under the top light blocking panes, or do something next to the engine or other car part in the front hood, or grab something in the back part of the car and give it to someone in the morning, or check the fueling components at the back or at the front, or clear the back seat, or something along these lines). Google Keep has location reminders, but here we need something to remind us when we get in proximity of the car. And we may not be able to go to the car, because we may be busy or it may be snowing outside. We want to set a reminder that kicks in as a notification next time we are in proximity of the car, perhaps also with a specific associated time or time interval in which that reminder will be active. Does NFC do the job? Do I need to purchase a special NFC chip for my car, and how can I program it make the notification kick in when my phone is next to the car or when I enter the car. Can NFC be made to work this way? How can I do this in Android? Thank you for your contributions. Thanks.
Joselin Jocklingson (855 rep)
Sep 18, 2023, 01:38 PM • Last activity: Sep 21, 2023, 12:34 PM
1 votes
4 answers
6363 views
Dialog option "Use by default for this action" or "Always" not displaying for NFC tag
I just completed my Android application which scans NFC tags. When an NFC tag comes near the device, the device tries to show all the apps which can scan the NFC tag. I want it to remember which app it should use to scan the NFC tag. It displayed my app, but I do not want the system to always ask me...
I just completed my Android application which scans NFC tags. When an NFC tag comes near the device, the device tries to show all the apps which can scan the NFC tag. I want it to remember which app it should use to scan the NFC tag. It displayed my app, but I do not want the system to always ask me which app to use. In my two devices, it not does show any option like Use by default for this action or Always, while in my other device with Android 4.2.2, it shows the options. Screenshot 1 Screenshot 2 Why is this so?
user54016
Feb 18, 2014, 06:00 AM • Last activity: Aug 31, 2023, 07:01 PM
10 votes
2 answers
9307 views
How to know if my phone has NFC technology?
I bought the Samsung Galaxy Note phone in Greece, but the store in which I bought the phone brought it directly from Samsung in France (that's what they told me), and the language that the phone had when I first booted the device was in German (so I suppose this phone was purposed for Germany). Is t...
I bought the Samsung Galaxy Note phone in Greece, but the store in which I bought the phone brought it directly from Samsung in France (that's what they told me), and the language that the phone had when I first booted the device was in German (so I suppose this phone was purposed for Germany). Is there any way to find out whether my phone has NFC technology or not?
el10780 (235 rep)
Feb 22, 2012, 12:40 PM • Last activity: Aug 20, 2023, 01:17 PM
2 votes
0 answers
17309 views
Can I use my phone as a MIFARE Classic card?
I use a MIFARE Classic badge to access my building (the system is a French one: VIGIK). I cloned a few tags already (tag to tag) and was wondering **if my Galaxy S22+ with Android 13 could act as a tag**, replacing the physical one? (I would like to possibly extend the answer to "any phone that supp...
I use a MIFARE Classic badge to access my building (the system is a French one: VIGIK). I cloned a few tags already (tag to tag) and was wondering **if my Galaxy S22+ with Android 13 could act as a tag**, replacing the physical one? (I would like to possibly extend the answer to "any phone that supports NFC" if this is possible) I read all kinds of things about this (notably Host-based Card Emulation, but also this answer from 2012 ) but in none of the discussions I saw a concrete answer to the question above for 2023 phones and Android version.
WoJ (633 rep)
Jul 14, 2023, 11:41 AM
0 votes
0 answers
617 views
Using root, how to fake nfc support of my phone so I can install apps that requires nfc from the Google Play Store?
This question is an [extension of this question where I want to perform the nfc checking part at the embassy](https://android.stackexchange.com/q/251982). Which files do I need to change in the filesystem using root so I can download apps marked as incompatible on the Google Play Store because my ph...
This question is an [extension of this question where I want to perform the nfc checking part at the embassy](https://android.stackexchange.com/q/251982) . Which files do I need to change in the filesystem using root so I can download apps marked as incompatible on the Google Play Store because my phone lack nfc sensors ?
user2284570 (501 rep)
Jun 10, 2023, 08:24 PM
2 votes
2 answers
6343 views
"NFC Service has stopped" dialog repeatedly popping up
Phone: Cubot KingKong 5 Pro Android 11, Security Update July 5. A couple of days ago the phone "crashed" and restarted itself. It does that from time to time, at worst it did it once per week or so, now less, like once in one or two months. After it was back up, I've been getting a "Nfc Service has...
Phone: Cubot KingKong 5 Pro Android 11, Security Update July 5. A couple of days ago the phone "crashed" and restarted itself. It does that from time to time, at worst it did it once per week or so, now less, like once in one or two months. After it was back up, I've been getting a "Nfc Service has stopped" dialog, like every 30-60 seconds. If I close the dialog, a new one appears soon. It makes using the phone quite hard as there is constantly that dialog blocking the screen. App Info says the culprit is "Nfc Service", go figure. I have already disabled it, but that dialog seems to come anyway. I don't use nor need NFC (as far as I know). If I go to Android Settings -> Connected devices -> Connection preferences -> NFC, I see only "Advanced settings", and clicking on it does nothing. Does this mean NFC is already disabled? As said, I am fine if NFC is completely disabled, as long as those irritating notes go away. Is there anything I can do, besides resetting the whole phone? I'd rather try to avoid it because I have some apps I have to backup & restore manually, like a VPN token software (it has to be set up again whenever I either change phone or reset the phone), Whatsapp and MapFactor navigator POIs.
timppu (23 rep)
Feb 20, 2023, 08:21 AM • Last activity: Apr 26, 2023, 04:04 AM
1 votes
0 answers
448 views
Disable NFC package on Android 12
From the forum, I got lots of information about package disabling on Android. But none of this works for me. I try block the NFC package on boot: 1. `pm disable com.android.nfc` 2. `svc nfc disable` 3. `service call nfc 8` But these commands don't work and NFC still loads and works. What else can I...
From the forum, I got lots of information about package disabling on Android. But none of this works for me. I try block the NFC package on boot: 1. pm disable com.android.nfc 2. svc nfc disable 3. service call nfc 8 But these commands don't work and NFC still loads and works. What else can I do?
olga olga (11 rep)
Apr 6, 2023, 02:58 PM • Last activity: Apr 7, 2023, 06:56 AM
3 votes
1 answers
1881 views
How to assign an app to an NFC event?
I would like to use NFC tags with [NFC Task Launcher][1] or [AutomateIt][2], but every time I scan the tag, I get a popup asking for the application to use (I have a few NFC-related ones). I have a Samsung Galaxy S3 and a Galaxy Note 2. There is no "always use this application" choice (similar to th...
I would like to use NFC tags with NFC Task Launcher or AutomateIt , but every time I scan the tag, I get a popup asking for the application to use (I have a few NFC-related ones). I have a Samsung Galaxy S3 and a Galaxy Note 2. There is no "always use this application" choice (similar to the ones I had when clicking on a link for the first time - which popped up an app panel with a choice of "this time only" or "every time"). Is there a way to force the assignment of an app to an event?
WoJ (633 rep)
Jan 15, 2013, 01:35 PM • Last activity: Mar 26, 2023, 01:02 PM
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