open CMD (command prompt) Hope you know that. change directory to the adb tools folder
eg: cd E:/ and_sdk/ adb tools
Now type adb shell
You will see this "$"
type su, the sign will change to "#" after providing root permission from Phone.
now type logcat, wait for some time observe the activities that are flashing on cmd screen, these are the processes running in the background of phone firmware. Now perform the task or sequence of activities that freezes the phone and check the logcat. This will tell you exactly which process is causing problem.
Originally Posted by woozydevotee
Well i have the xxkb3 build on my phone, can you please elaborate about how do i go about using the logcat?