Welcome and thanks for your question.
I'm Todd and I will be the expert working with you today to help resolve your problem.
Please note that electronics troubleshooting is not always easy and sometimes I will not be able to find solution for your problem immediately, so if my first answer does not resolve your problem or you need more information please do not rate my answer negative BAD SERVICE or POOR SERVICE (that will result in a permanent negative feedback on my record - very damaging for me). Please use "Reply to Expert" button instead.
If the keyboard is not deleted from your phone please follow the steps below to bring it back.
1. From Home screen, tap MENU button
2. Select "Settings"
3. Select "Language & Keyboard"
4. Select "Select input method"
5. Select "Android keyboard"
6. Go back to the home screen and test your phone.
Please try this solution (step by step) and let me know if that works. I'll be waiting for your reply.
If this doesn't help or you need more information please do not rate my answer negative BAD service or POOR service. Reply to me using "Reply to Expert" button and I'll provide you with the next step.