How to Fix Samsung Galaxy Note 2 (GT-N7100) Bootloop

All Android smartphones have the potential for bootloop, even Samsung's android smartphone as king of Asia technology also did not escape the bootloop problem. There are many things that cause it, such as failing to update firmware, root failure, flashing errors and others, but one thing is for sure that bootloop is a problem with eMMC.

To solve bootloop problems on various android smartphones, customized on the error location of operating system components.

For samsung smartphone there is a way to be able to know the point of the bootloop problem so that we can determine the right way of completion and of course will save time.

Sample case:

Samsung Galaxy Note 2 (GT-N7100) when turned on the display only stuck on the samsung animation logo and can not enter the menu and the recovery menu appears error message E: failed to mount / efs (Invalid argument). Like the picture below

Sometimes just doing a factory reset or flashing bootloop problem can be solved. However, in the case of Samsung Galaxy Note 2 (GT-N7100) this error message indicates that part of the operating system component that is problematic so that causes Samsung Galaxy Note 2 (GT-N7100) to bootloop.

Proper handling is to refer to error messages that appear in recovery mode E: failed to mount / efs (Invalid argument). All we have to do is write efs that suits the smartphone model in this case Samsung Galaxy Note 2 (GT-N7100). Please download efs file for Samsung Galaxy Note 2 (GT-N7100)

How to flashing efs.tar via Odin3 v3.11?

• Enable Samsung Galaxy Note 2 (GT-N7100) to Odin mode (Home button + Volume button (-) + Power button) 
• Connect to PC / Laptop and make sure the driver is installed 
• Make sure the phone ID is detected by Odin3 
• Click AP button and load efs-gt-n7100.tar file 
• Click the Start button to start the flashing process and wait for it to finish.