How to Duplicate Blocks (minecraft PE)

This is my first instructable so please give it a chance

This glitch will only work in survival

Step 1:

Place any block I just chose diamond

Step 2:

Double tap the home button then hold down on the minecraft icon
After that press the red thing in the corner of the app

Step 3:

Go back to minecraft

Step 4:

Bam!!! Now you have another block of what you duplicated XD

Step 5:

Thanks for checking out