[Galaxy Tab 3 7.0 Android Development] TRNSLN:
I'm still trying to find a solution for bootanimation issue. I've following pieces from logcat:

I/PowerHAL( 576): power_set_for_device /sys/class/graphics/fb1/device/power wit
h on 0
W/PowerHAL( 576): /sys/class/graphics/fb1/device/power/runtime_status is unsupp
orted
I/PowerHAL( 576): power_set_for_device /sys/bus/platform/drivers/mmp-disp/mmp-d
isp/power with on 0
W/PowerHAL( 576): /sys/bus/platform/drivers/mmp-disp/mmp-disp/power/control doe
sn't exist
I/PowerHAL( 576): power_set_for_device /sys/devices/platform/galcore/power with
on 0
W/PowerHAL( 576): /sys/devices/platform/galcore/power/runtime_status is unsuppo
rted

And some more

I/PHService( 127): ShcmdOperator : "echo 0 > /proc/driver/pm800_headset" exite
d with status 0
I/PHService( 127): ShcmdOperator :
I/PHService( 127): VpuOperator : [WorkerTask]
I/PHService( 127): VpuOperator : VPU0: Operation: 416000
I/PHService( 127): VpuOperator : [Apply]
I/PHService( 127): VpuOperator : Operation setting for VPU0 successfully
!
I/PHService( 127): VpuOperator :
I/PHService( 127): OperatorBase : ========== Do Work [Done] ========
I/PowerHAL( 576): write on done
I/PowerHAL( 576): wait_for_set_complete done, status is active
I/PowerHAL( 576): power_set_for_device /sys/devices/platform/mmp-ddr-plug.1/pow
er with on 1
W/PowerHAL( 576): /sys/devices/platform/mmp-ddr-plug.1/power/control doesn't ex
ist
I/PowerHAL( 576): power_set_for_device /sys/devices/platform/mrvl8xxx_fm.0/powe
r with on 1
W/PowerHAL( 576): /sys/devices/platform/mrvl8xxx_fm.0/power/control doesn't exi
st
I/PowerHAL( 576): power_set_for_device /sys/class/input/input4/device/power wit
h on 1
W/PowerHAL( 576): /sys/class/input/input4/device/power/control doesn't exist
I/PowerHAL( 576): power_set_for_device /sys/bus/i2c/devices/0-0022/power with o
n 1
W/PowerHAL( 576): /sys/bus/i2c/devices/0-0022/power/control doesn't exist
I/PowerHAL( 576): power_set_for_device /sys/bus/i2c/devices/0-005d/power with o
n 1
W/PowerHAL( 576): /sys/bus/i2c/devices/0-005d/power/control doesn't exist
I/PowerHAL( 576): power_set_for_device /sys/bus/i2c/devices/2-0022/power with o
n 1
W/PowerHAL( 576): /sys/bus/i2c/devices/2-0022/power/control doesn't exist
I/PowerHAL( 576): power_set_for_device /sys/bus/i2c/devices/2-005d/power with o
n 1
W/PowerHAL( 576): /sys/bus/i2c/devices/2-005d/power/control doesn't exist
I/PowerHAL( 576): power_set_for_device /sys/bus/i2c/devices/2-0039/power with o
n 1
W/PowerHAL( 576): /sys/bus/i2c/devices/2-0039/power/control doesn't exist
I/PowerHAL( 576): power_set_for_device /sys/class/input/input0/device/power wit
h on 1
I/PowerHAL( 576): /sys/class/input/input0/device/power/control opened
I/PowerHAL( 576): write on done
I/PowerHAL( 576): wait_for_set_complete done, status is active
D/PowerManagerService-JNI( 576): Excessive delay in BSP-dependent setInteractiv
e(true) while turning screen on: 533ms
W/System.err( 576): java.io.FileNotFoundException: /sys/class/power_supply/batt
ery/lcd: open failed: EACCES (Permission denied)
W/System.err( 576): at libcore.io.IoBridge.open(IoBridge.java:409)
W/System.err( 576): at java.io.FileOutputStream.<init>(FileOutputStream.java
:88)
W/System.err( 576): at java.io.FileOutputStream.<init>(FileOutputStream.java
:73)
W/System.err( 576): at com.sec.android.hardware.SecHardwareInterface.setBatt
eryADC(SecHardwareInterface.java:393)
W/System.err( 576): at com.android.server.power.PowerManagerService$DisplayB
lankerImpl$1.run(PowerManagerService.java:5344)
W/System.err( 576): at android.os.Handler.handleCallback(Handler.java:733)
W/System.err( 576): at android.os.Handler.dispatchMessage(Handler.java:95)
W/System.err( 576): at android.os.Looper.loop(Looper.java:146)
W/System.err( 576): at android.os.HandlerThread.run(HandlerThread.java:61)
W/System.err( 576): Caused by: libcore.io.ErrnoException: open failed: EACCES (
Permission denied)
W/System.err( 576): at libcore.io.Posix.open(Native Method)
W/System.err( 576): at libcore.io.BlockGuardOs.open(BlockGuardOs.java:110)
W/System.err( 576): at libcore.io.IoBridge.open(IoBridge.java:393)
W/System.err( 576): ... 8 more
D/PowerManagerService( 576): Excessive delay in nativeSetInteractive(true): 534
ms
D/PowerManagerService( 576): SecHardwareInterface.setBatteryADC : true

[MENTION=3034891]gr8nole[/MENTION] there's a file or folder missing in according to the log. It's "/sys/bus/platform/drivers/mmp-disp/mmp-disp/power/control". Do you have those files on your tablet?