[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] manhattan212:
Sometimes it boot-loops instantaneously, sometimes it does not and requires the ten second press. As for the backlight, I honestly haven't noticed -paid attention.

And our numbers (those of us with the "issue"). I wonder if it's software or hardware.

Pasted beneath are the last few lines from my logcat, prior to an instant reboot.

D/NetUtils( 831): android_net_utils_resetConnections in env=0x7a2c84f8 clazz=0xa4d00001 iface=wlan0 mask=0x2

D/ConnectivityService( 831): resetConnections(wlan0, 2)

D/ConnectivityService( 831): updateSourceRoutes : no source routing conditions

D/ConnectivityService( 831): handleConnectivityChange: addresses changed linkProperty[1]: resetMask=2

D/ConnectivityService( 831): car=removed=[2002:b735:b90b:1:2e3:b2ff:fec2:200e/64,] added=[2002:b735:b90b:1:3023:b9c4:6889:ae40/64,]

V/RouteController( 247): /system/bin/ip -6 route del default table 2 2>&1

D/ConnectivityService( 831): handleConnectivityChange: setting default proxy info

V/RouteController( 247): RTNETLINK answers: No such process

V/RouteController( 247): /system/bin/ip -6 rule del table 2 2>&1

V/RouteController( 247): RTNETLINK answers: No such file or directory

W/NetworkManagementService( 831): route cmd failed:

W/NetworkManagementService( 831): com.android.server.NativeDaemonConnector$NativeDaemonFailureException: command '11880 route del src v6 2' failed with '400 11880 -6 rule del table 2: RTNETLINK answers: No such file or directory

W/NetworkManagementService( 831): '

W/NetworkManagementService( 831):	at com.android.server.NativeDaemonConnector.execute(NativeDaemonConnector.java:406)

W/NetworkManagementService( 831):	at com.android.server.NativeDaemonConnector.executeForList(NativeDaemonConnector.java:338)

W/NetworkManagementService( 831):	at com.android.server.NativeDaemonConnector.execute(NativeDaemonConnector.java:303)

W/NetworkManagementService( 831):	at com.android.server.NativeDaemonConnector.execute(NativeDaemonConnector.java:288)

W/NetworkManagementService( 831):	at com.android.server.NetworkManagementService.delSrcRoute(NetworkManagementService.java:2375)

W/NetworkManagementService( 831):	at com.android.server.ConnectivityService.updateSourceRoutes(ConnectivityService.java:4037)

W/NetworkManagementService( 831):	at com.android.server.ConnectivityService.handleConnectivityChange(ConnectivityService.java:3814)

W/NetworkManagementService( 831):	at com.android.server.ConnectivityService.access$2400(ConnectivityService.java:256)

W/NetworkManagementService( 831):	at com.android.server.ConnectivityService$NetworkStateTrackerHandler.handleMessage(ConnectivityService.java:4594)

W/NetworkManagementService( 831):	at android.os.Handler.dispatchMessage(Handler.java:102)

W/NetworkManagementService( 831):	at android.os.Looper.loop(Looper.java:136)

W/NetworkManagementService( 831):	at android.os.HandlerThread.run(HandlerThread.java:61)

D/NetUtils( 831): android_net_utils_resetConnections in env=0x7a2c84f8 clazz=0xa9a00001 iface=wlan0 mask=0x2

D/ConnectivityService( 831): resetConnections(wlan0, 2)

D/ConnectivityService( 831): updateSourceRoutes : no source routing conditions

D/STATUSBAR-NetworkController( 1048): refreshSignalCluster - setNWBoosterIndicators(false)

D/STATUSBAR-NetworkController( 1048): refreshSignalCluster: data=-1 bt=false

D/STATUSBAR-IconMerger( 1048): checkOverflow(2208), More:false, Req:false Child:3

D/BatteryService( 831): level:100, scale:100, status:3, health:2, present:true, voltage: 4183, temperature: 328, technology: Li-ion, AC powered:false, USB powered:true, Wireless powered:false, icon:17303543, invalid charger:0, online:4, current avg:0, charge type:1, power sharing:false

D/BatteryService( 831): Sending ACTION_BATTERY_CHANGED.

D/KeyguardUpdateMonitor( 1048): received broadcast android.intent.action.BATTERY_CHANGED

D/KeyguardUpdateMonitor( 1048): handleBatteryUpdate

D/STATUSBAR-PhoneStatusBar( 1048): mBrightnessEnablebySettings = true mBrightnessEnablebyBattery = true mBrightnessEnablebyDisableFlag = true mPmsBrightnessEnablebySettings = true

D/STATUSBAR-IconMerger( 1048): checkOverflow(2208), More:false, Req:false Child:3

D/BatteryMeterView( 1048): ACTION_BATTERY_CHANGED : level:100 status:3 health:2

D/STATUSBAR-NetworkController( 1048): refreshSignalCluster - setNWBoosterIndicators(false)

D/STATUSBAR-NetworkController( 1048): refreshSignalCluster: data=-1 bt=false

D/STATUSBAR-IconMerger( 1048): checkOverflow(2208), More:false, Req:false Child:3

E/SMD ( 250): DCD ON

D/SensorService( 831): 0.4 -0.0 10.1

D/SSRMv2:SIOP( 831): SIOP:: AP = 350, Delta = 0

E/SMD ( 250): DCD ON

D/SensorService( 831): 0.5 -0.0 10.1

E/SMD ( 250): DCD ON

D/SensorService( 831): 0.5 -0.0 10.1

E/SMD ( 250): DCD ON

D/BatteryService( 831): level:100, scale:100, status:3, health:2, present:true, voltage: 4176, temperature: 328, technology: Li-ion, AC powered:false, USB powered:true, Wireless powered:false, icon:17303543, invalid charger:0, online:4, current avg:-2, charge type:1, power sharing:false

D/KeyguardUpdateMonitor( 1048): received broadcast android.intent.action.BATTERY_CHANGED

D/BatteryService( 831): Sending ACTION_BATTERY_CHANGED.

D/KeyguardUpdateMonitor( 1048): handleBatteryUpdate

D/STATUSBAR-PhoneStatusBar( 1048): mBrightnessEnablebySettings = true mBrightnessEnablebyBattery = true mBrightnessEnablebyDisableFlag = true mPmsBrightnessEnablebySettings = true

D/BatteryMeterView( 1048): ACTION_BATTERY_CHANGED : level:100 status:3 health:2

D/STATUSBAR-IconMerger( 1048): checkOverflow(2208), More:false, Req:false Child:3

D/SensorService( 831): 0.5 -0.0 10.1

D/SSRMv2:SIOP( 831): SIOP:: AP = 350, Delta = 0

E/SMD ( 250): DCD ON

W/WifiP2pStateTracker( 831): WifiP2pStateReceiver : android.net.wifi.LINK_CONFIGURATION_CHANGED

W/WifiP2pStateTracker( 831): WifiP2pStateReceiver : android.net.wifi.LINK_CONFIGURATION_CHANGED

D/ConnectivityService( 831): handleConnectivityChange: address are the same reset per doReset linkProperty[1]: resetMask=0

D/ConnectivityService( 831): handleConnectivityChange: setting default proxy info

D/ConnectivityService( 831): updateSourceRoutes : no source routing conditions

D/ConnectivityService( 831): handleConnectivityChange: address are the same reset per doReset linkProperty[1]: resetMask=0

D/ConnectivityService( 831): handleConnectivityChange: setting default proxy info

D/ConnectivityService( 831): updateSourceRoutes : no source routing conditions

D/STATUSBAR-NetworkController( 1048): refreshSignalCluster - setNWBoosterIndicators(false)

D/STATUSBAR-NetworkController( 1048): refreshSignalCluster: data=-1 bt=false

D/STATUSBAR-IconMerger( 1048): checkOverflow(2208), More:false, Req:false Child:3

D/SensorService( 831): 0.5 -0.0 10.1

D/STATUSBAR-NetworkController( 1048): refreshSignalCluster - setNWBoosterIndicators(false)

D/STATUSBAR-NetworkController( 1048): refreshSignalCluster: data=-1 bt=false

D/STATUSBAR-IconMerger( 1048): checkOverflow(2208), More:false, Req:false Child:3

E/SMD ( 250): DCD ON

D/SensorService( 831): 0.4 -0.0 10.1

W/WifiP2pStateTracker( 831): WifiP2pStateReceiver : android.net.wifi.LINK_CONFIGURATION_CHANGED

W/WifiP2pStateTracker( 831): WifiP2pStateReceiver : android.net.wifi.LINK_CONFIGURATION_CHANGED

D/ConnectivityService( 831): handleConnectivityChange: address are the same reset per doReset linkProperty[1]: resetMask=0

D/ConnectivityService( 831): handleConnectivityChange: setting default proxy info

D/ConnectivityService( 831): updateSourceRoutes : no source routing conditions

D/ConnectivityService( 831): handleConnectivityChange: address are the same reset per doReset linkProperty[1]: resetMask=0

D/ConnectivityService( 831): handleConnectivityChange: setting default proxy info

D/ConnectivityService( 831): updateSourceRoutes : no source routing conditions

E/SMD ( 250): DCD ON

D/STATUSBAR-NetworkController( 1048): refreshSignalCluster - setNWBoosterIndicators(false)

D/STATUSBAR-NetworkController( 1048): refreshSignalCluster: data=-1 bt=false

D/STATUSBAR-IconMerger( 1048): checkOverflow(2208), More:false, Req:false Child:3

D/BatteryService( 831): level:100, scale:100, status:3, health:2, present:true, voltage: 4174, temperature: 327, technology: Li-ion, AC powered:false, USB powered:true, Wireless powered:false, icon:17303543, invalid charger:0, online:4, current avg:-5, charge type:1, power sharing:false

D/BatteryService( 831): Sending ACTION_BATTERY_CHANGED.

D/KeyguardUpdateMonitor( 1048): received broadcast android.intent.action.BATTERY_CHANGED

D/KeyguardUpdateMonitor( 1048): handleBatteryUpdate

D/STATUSBAR-PhoneStatusBar( 1048): mBrightnessEnablebySettings = true mBrightnessEnablebyBattery = true mBrightnessEnablebyDisableFlag = true mPmsBrightnessEnablebySettings = true

D/STATUSBAR-IconMerger( 1048): checkOverflow(2208), More:false, Req:false Child:3

D/BatteryMeterView( 1048): ACTION_BATTERY_CHANGED : level:100 status:3 health:2

E/Watchdog( 831): !@Sync 1584

D/STATUSBAR-NetworkController( 1048): refreshSignalCluster - setNWBoosterIndicators(false)

D/STATUSBAR-NetworkController( 1048): refreshSignalCluster: data=-1 bt=false

D/STATUSBAR-IconMerger( 1048): checkOverflow(2208), More:false, Req:false Child:3

And attached is a compressed file with the entire logcat file (that's nearly 13 hours of logging).

j to the 4n, thank you for your willingness to help, and patience. It is much appreciated.