NFC readonly Throws java.io.exception

[abiodun0]

When I try to make a tag read-only using nfc.makeReadOnly([success], [failure]) on my command it shows java.io.exception and the tag can still be written to.

Anybody else have this problem?

[don]

Can you run adb logcat and copy and paste the details of the exception?

[taglme]

I get the same problem. There is adb logcat log ` E/AndroidRuntime( 9285): FATAL EXCEPTION: pool-1-thread-8 E/AndroidRuntime( 9285): Process: com.ionicframework.nfclabel717026, PID: 9285 E/AndroidRuntime( 9285): java.lang.IllegalStateException: Close other technology first! E/AndroidRuntime( 9285): at android.nfc.Tag.setConnectedTechnology(Tag.java:458) E/AndroidRuntime( 9285): at android.nfc.tech.BasicTagTechnology.connect(BasicTagTechnology.java:78) E/AndroidRuntime( 9285): at android.nfc.tech.Ndef.connect(Ndef.java:71) E/AndroidRuntime( 9285): at com.chariotsolutions.nfc.plugin.NfcPlugin$2.run(NfcPlugin.java:314) E/AndroidRuntime( 9285): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112) E/AndroidRuntime( 9285): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587) E/AndroidRuntime( 9285): at java.lang.Thread.run(Thread.java:818) E/AndroidRuntime(10762): FATAL EXCEPTION: pool-1-thread-6 E/AndroidRuntime(10762): Process: com.ionicframework.nfclabel717026, PID: 10762 E/AndroidRuntime(10762): java.lang.IllegalStateException: Close other technology first! E/AndroidRuntime(10762): at android.nfc.Tag.setConnectedTechnology(Tag.java:458) E/AndroidRuntime(10762): at android.nfc.tech.BasicTagTechnology.connect(BasicTagTechnology.java:78) E/AndroidRuntime(10762): at android.nfc.tech.Ndef.connect(Ndef.java:71) E/AndroidRuntime(10762): at com.chariotsolutions.nfc.plugin.NfcPlugin$2.run(NfcPlugin.java:314) E/AndroidRuntime(10762): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112) E/AndroidRuntime(10762): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587) E/AndroidRuntime(10762): at java.lang.Thread.run(Thread.java:818) E/AndroidRuntime(11514): FATAL EXCEPTION: pool-1-thread-5 E/AndroidRuntime(11514): Process: com.ionicframework.nfclabel717026, PID: 11514 E/AndroidRuntime(11514): java.lang.IllegalStateException: Close other technology first! E/AndroidRuntime(11514): at android.nfc.Tag.setConnectedTechnology(Tag.java:458) E/AndroidRuntime(11514): at android.nfc.tech.BasicTagTechnology.connect(BasicTagTechnology.java:78) E/AndroidRuntime(11514): at android.nfc.tech.Ndef.connect(Ndef.java:71) E/AndroidRuntime(11514): at com.chariotsolutions.nfc.plugin.NfcPlugin$2.run(NfcPlugin.java:314) E/AndroidRuntime(11514): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112) E/AndroidRuntime(11514): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587) E/AndroidRuntime(11514): at java.lang.Thread.run(Thread.java:818) E/NfcPlugin(17713): Failed to make tag read only E/NfcPlugin(17713): java.io.IOException E/NfcPlugin(17713): at android.nfc.tech.Ndef.makeReadOnly(Ndef.java:388) E/NfcPlugin(17713): at com.chariotsolutions.nfc.plugin.NfcPlugin$2.run(NfcPlugin.java:319) E/NfcPlugin(17713): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112) E/NfcPlugin(17713): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587) E/NfcPlugin(17713): at java.lang.Thread.run(Thread.java:818) E/NfcPlugin(17713): Failed to make tag read only E/NfcPlugin(17713): java.io.IOException E/NfcPlugin(17713): at android.nfc.tech.Ndef.makeReadOnly(Ndef.java:388) E/NfcPlugin(17713): at com.chariotsolutions.nfc.plugin.NfcPlugin$2.run(NfcPlugin.java:319) E/NfcPlugin(17713): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112) E/NfcPlugin(17713): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587) E/NfcPlugin(17713): at java.lang.Thread.run(Thread.java:818) E/NfcPlugin(17713): Failed to make tag read only E/NfcPlugin(17713): java.io.IOException E/NfcPlugin(17713): at android.nfc.tech.Ndef.makeReadOnly(Ndef.java:388) E/NfcPlugin(17713): at com.chariotsolutions.nfc.plugin.NfcPlugin$2.run(NfcPlugin.java:319) E/NfcPlugin(17713): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112) E/NfcPlugin(17713): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587) E/NfcPlugin(17713): at java.lang.Thread.run(Thread.java:818) E/NfcPlugin(17713): Failed to make tag read only E/NfcPlugin(17713): java.io.IOException E/NfcPlugin(17713): at android.nfc.tech.Ndef.makeReadOnly(Ndef.java:388) E/NfcPlugin(17713): at com.chariotsolutions.nfc.plugin.NfcPlugin$2.run(NfcPlugin.java:319) E/NfcPlugin(17713): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112) E/NfcPlugin(17713): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587) E/NfcPlugin(17713): at java.lang.Thread.run(Thread.java:818)

E/AndroidRuntime(17713): FATAL EXCEPTION: pool-1-thread-5 E/AndroidRuntime(17713): Process: com.ionicframework.nfclabel717026, PID: 17713 E/AndroidRuntime(17713): java.lang.IllegalStateException: Close other technology first! E/AndroidRuntime(17713): at android.nfc.Tag.setConnectedTechnology(Tag.java:458) E/AndroidRuntime(17713): at android.nfc.tech.BasicTagTechnology.connect(BasicTagTechnology.java:78) E/AndroidRuntime(17713): at android.nfc.tech.Ndef.connect(Ndef.java:71) E/AndroidRuntime(17713): at com.chariotsolutions.nfc.plugin.NfcPlugin$2.run(NfcPlugin.java:314) E/AndroidRuntime(17713): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112) E/AndroidRuntime(17713): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587) E/AndroidRuntime(17713): at java.lang.Thread.run(Thread.java:818)`

[taglme]

May be it depend on NFC chip type? I get this error while trying to encode ntag216 and ntag213 chip Link to full log https://yadi.sk/i/VRqT4xGUreDJx

[don]

It's possible the tags you have don't support being made read only. (You're supposed to get a better error if that happen.)

Can you debug the Android code and see where it's failing? Start here https://github.com/chariotsolutions/phonegap-nfc/blob/ccd39de398861f83d9f4cc8fa05ffa5ce4ddaaf3/src/android/src/com/chariotsolutions/nfc/plugin/NfcPlugin.java#L314-L322