Hi,
I would like to suggest below procedure for your application.
1. USART and LCD code
2. Make a program in which whenevr we receive any data on USART, it wil be received and displayed on LCD
3. Test above program by sending data from hyperterminal
4. Connect bluetooth module
5. Install app named “Blucontrol” on ur android phone and connect phone with bluetooth module
6. Send data from that app and see whether u r receiving it on LCD or not
All the best