[NFC Hacking] Straussberg:
With NXP TagWriter

I/ActivityManager( 307): START {cmp=com.nxp.nfc.tagwriter/.activities.WriteParametersActivity (has extras) u=0} from pid 5603
D/NfcDispatcher( 578): Set Foreground Dispatch
D/NfcDispatcher( 578): Set Foreground Dispatch
I/ActivityManager( 307): Displayed com.nxp.nfc.tagwriter/.activities.WriteParametersActivity: +287ms
E/Tuna PowerHAL( 307): Error writing to /sys/devices/system/cpu/cpufreq/interactive/boostpulse: No such device
E/Tuna PowerHAL( 307): Error writing to /sys/devices/system/cpu/cpufreq/interactive/boostpulse: No such device
E/Tuna PowerHAL( 307): Error writing to /sys/devices/system/cpu/cpufreq/interactive/boostpulse: No such device
E/Tuna PowerHAL( 307): Error writing to /sys/devices/system/cpu/cpufreq/interactive/boostpulse: No such device
I/ActivityManager( 307): START {act=com.nxp.nfc.tagwriter.WRITE cmp=com.nxp.nfc.tagwriter/.activities.WriterActivity (has extras) u=0} from pid 5603
D/NfcDispatcher( 578): Set Foreground Dispatch
D/NfcDispatcher( 578): Set Foreground Dispatch
I/ActivityManager( 307): Displayed com.nxp.nfc.tagwriter/.activities.WriterActivity: +217ms
D/NativeNfcTag( 578): Check NDEF Failed - status = 255
D/NativeNfcTag( 578): Check NDEF Failed - status = 255
D/NfcDispatcher( 578): dispatch tag: TAG: Tech [android.nfc.tech.MifareClassic, android.nfc.tech.NfcA, android.nfc.tech.NdefFormatable] message: null
D/NfcDispatcher( 578): Set Foreground Dispatch
I/ActivityManager( 307): START {act=android.nfc.action.TAG_DISCOVERED flg=0x20000000 cmp=com.nxp.nfc.tagwriter/.activities.WriterActivity (has extras) u=0} from pid -1
W/ActivityManager( 307): startActivity called from non-Activity context; forcing Intent.FLAG_ACTIVITY_NEW_TASK for: Intent { act=android.nfc.action.TAG_DISCOVERED flg=0x20000000 cmp=com.nxp.nfc.tagwriter/.activities.WriterActivity (has extras) }I/NfcDispatcher( 578): matched TAG override
D/NfcDispatcher( 578): Set Foreground Dispatch
V/AudioManager( 5603): shouldVibrate, group: a126d48a-aaef-47c4-baed-7f0e44aeffe5 mode: DEFAULT
W/WVMExtractor( 124): Failed to open libwvm.so
V/AudioManager( 5603): shouldVibrate, group: a126d48a-aaef-47c4-baed-7f0e44aeffe5 mode: DEFAULT
E/Tuna PowerHAL( 307): Error writing to /sys/devices/system/cpu/cpufreq/interactive/boostpulse: No such device
E/Tuna PowerHAL( 307): Error writing to /sys/devices/system/cpu/cpufreq/interactive/boostpulse: No such device
E/Tuna PowerHAL( 307): Error writing to /sys/devices/system/cpu/cpufreq/interactive/boostpulse: No such device
E/Tuna PowerHAL( 307): Error writing to /sys/devices/system/cpu/cpufreq/interactive/boostpulse: No such device
D/NfcDispatcher( 578): Set Foreground Dispatch
D/NfcDispatcher( 578): Set Foreground Dispatch
D/NativeNfcTag( 578): Tag lost, restarting polling loop

With NFC ReTag FREE:

I/ActivityManager( 307): START {cmp=com.widgapp.NFC_ReTAG_FREE/.Ndef_format_tag u=0} from pid 5975
D/NfcDispatcher( 578): Set Foreground Dispatch
D/NfcDispatcher( 578): Set Foreground Dispatch
I/ActivityManager( 307): Displayed com.widgapp.NFC_ReTAG_FREE/.Ndef_format_tag: +174ms
D/NativeNfcTag( 578): Check NDEF Failed - status = 255
D/NativeNfcTag( 578): Check NDEF Failed - status = 255
D/NfcDispatcher( 578): dispatch tag: TAG: Tech [android.nfc.tech.MifareClassic, android.nfc.tech.NfcA, android.nfc.tech.NdefFormatable] message: null
I/ActivityManager( 307): START {act=android.nfc.action.TAG_DISCOVERED flg=0x20000000 cmp=com.widgapp.NFC_ReTAG_FREE/.Ndef_format_tag (has extras) u=0} from pid -1
W/ActivityManager( 307): startActivity called from non-Activity context; forcing Intent.FLAG_ACTIVITY_NEW_TASK for: Intent { act=android.nfc.action.TAG_DISCOVERED flg=0x20000000 cmp=com.widgapp.NFC_ReTAG_FREE/.Ndef_format_tag (has extras) }
I/NfcDispatcher( 578): matched TAG override
D/NfcDispatcher( 578): Set Foreground Dispatch
D/NfcDispatcher( 578): Set Foreground Dispatch
E/Tuna PowerHAL( 307): Error writing to /sys/devices/system/cpu/cpufreq/interactive/boostpulse: No such device
E/Tuna PowerHAL( 307): Error writing to /sys/devices/system/cpu/cpufreq/interactive/boostpulse: No such device
E/Tuna PowerHAL( 307): Error writing to /sys/devices/system/cpu/cpufreq/interactive/boostpulse: No such device
E/Tuna PowerHAL( 307): Error writing to /sys/devices/system/cpu/cpufreq/interactive/boostpulse: No such device
W/System.err( 5975): java.io.IOException
W/System.err( 5975): at android.nfc.tech.NdefFormatable.format(NdefFormatable.java:132)
W/System.err( 5975): at android.nfc.tech.NdefFormatable.format(NdefFormatable.java:95)
W/System.err( 5975): at com.widgapp.NFC_ReTAG_FREE.Ndef_format_tag.a(Unknown Source)
W/System.err( 5975): at com.widgapp.NFC_ReTAG_FREE.aa.onClick(Unknown Source)
W/System.err( 5975): at com.android.internal.app.AlertController$ButtonHandler.handleMessage(AlertController.java:166)
W/System.err( 5975): at android.os.Handler.dispatchMessage(Handler.java:99)
W/System.err( 5975): at android.os.Looper.loop(Looper.java:137)
W/System.err( 5975): at android.app.ActivityThread.main(ActivityThread.java:4928)
W/System.err( 5975): at java.lang.reflect.Method.invokeNative(Native Method)
W/System.err( 5975): at java.lang.reflect.Method.invoke(Method.java:511)
W/System.err( 5975): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791)
W/System.err( 5975): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:558)
W/System.err( 5975): at dalvik.system.NativeStart.main(Native Method)
I/Choreographer( 5975): Skipped 42 frames! The application may be doing too much work on its main thread.
W/InputMethodManagerService( 307): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@41797040 attribute=null
D/NativeNfcTag( 578): Tag lost, restarting polling loop