I would like to create a reminder on the lock screen so I can see it everytime I tried to use my mobile.
How can I do that?
Since you have Jelly Bean; how about a lock-screen widget? They're very useful and there are tons of them.
Note by default Lock Screen Widgets are disabled, go to the
Settings app on your device, select
Security and look for the
"Enable Widgets" option
You could use Google Keep as an example:
I use Dash Clock widget on my lock screen and homescreen! It's a wonderful, simple widget. The advantage is you can add loads of extensions, for example: Dash Clock NOTES which sounds exactly right for what you need!
Here's an example:
There are numerous notebook style applications, and I, obviously, cannot provide an exhaustive list. Why not shop around (many are free) and ensure they have a lock-screen widget option?!
Owner Info is a possible workaround.
Settings > Security > Owner Info
It shows an arbitrary string on the lock screen.