Enable logcat in RedMi / HongMi AOSP 4.2.2

For some reason the logcat in AOSP 4.2.2 maybe disabled by default. To re-enable it, follow the steps below:

1. Extract the file in /system/etc/init.d/03MTKTweakElse
2. Comment out the line "rm /dev/log/main", this statement will disable the logcat to function
3. Push back the file to the device
   C:\> adb push 03MTKTweakElse /system/etc/init.d/03MTKTweakElse

You may not have the privilege to write on the directory /system, to handle this, remount the /system partition using:

1. Enter the shell
      adb shell
2. Change to root
      su
3. Remount the /system as Read-Write
      mount -o remount rw /system