How to unlock my iPhone 5 pass code?

So i locked my iPhone with a pass code using the Greek keyboard, and i removed the keyboard to see if it would still show up for the pass code. So it didn't show up and now i don't know how to unlock my phone if the letters aren't on my keyboard anymore.

Open iTunes on your computer, plug the phone into the USB port with your cable, and restore your phone from the backup. If you used the iCloud backup instead of storing it on your computer, you will have access to the iCloud backup to restore your phone from iTunes as well. Then the phone will revert to the pass code you had in the phone at the time of the backup. If a Greek keyboard was present at that time, it will be restored as well. If it isn't, all you have to do is download the Greek keyboard app into iTunes that you used, select it to be installed, and sync the phone to re-install it. When you are done, the Greek keyboard will be restored, and you can enter the pass code you locked it with.