Don’t Worry! There won’t be any problem in MCU but may be in LCD! try changing LCD. Or follow the link below:http://lcd-linux.sourceforge.net/pdfdocs/lcd1.pdf and http://lcd-linux.sourceforge.net/pdfdocs/lcd2.pdf. here are tutorial on checking LCD.
Don’t Worry! There won’t be any problem in MCU but may be in LCD! try changing LCD. Or follow the link below:http://lcd-linux.sourceforge.net/pdfdocs/lcd1.pdf and http://lcd-linux.sourceforge.net/pdfdocs/lcd2.pdf. here are tutorial on checking LCD.