The most popular graphical keys
Can not come up with a simple graphical key or release existing on the smartphone to your child? This article from the site Androidground, we made a selection of the most popular keys that can be used by people. We do not recommend to put the same as pick up graphic key of this type not be difficult.
You can read our article how disable the graphical key and unlock the graphical code.
Protection from selection
In the Android operating system has built-in protection against key selection brute force, after the fifth attempt to enter the input is locked for 30 seconds.