Hi @Gsalinas, let me see if I can help out here.
I have translated your question to English as this is an International forum, please post any replies in English and it will be easier for me and other users to assist you.
I am afraid that the Xperia L3 do not come with a pre-installed notepad app. However, there is a bunch of different notepad apps to choose from in the Play Store. Personally I use Google's app called Google Keep. Easy to use and synchronized to your Google account, making it easier to switch phones when that time comes.
I hope that answered your question!
