If you're looking for a more efficient way to lock and unlock your Chromebook screen, here's how to do that with the help of the developer channel and PIN unlock.

Now you can unlock Chrome OS with a PIN code Plug in a few numbers instead of your main Google password.

Google is testing an experimental feature that allows one to unlock the Chrome OS with a PIN instead of a traditional password. The feature is in the developer stage, but here's how you can put it ...

If you need further assistance in setting up a password unlock on your device, then please refer to Samsung Support and get support for Samsung Galaxy S4. Incorrect PIN entry displays: ...

How to Reset Your M-PESA PIN If you have forgotten your current M-PESA PIN or you just need to change it, you can reset it using USSD code 334#.

You now have an iPhone 3G that will run on any network. One note -- you'll need the latest baseband firmware for the iPhone, numbered 02.28.00, and you'll have to disable the PIN unlock code on ...

A PIN can log you into your computer faster than a password. Here's how to create one in Windows 10.