Hi all,
The issues with the LCD are already discussed so many times in this forum. You can search the previous discussions regarding the LCD in this forum and I’m sure that it will help you.
Normally the problems occurs due to:
-wrong hardware connections
-loose contact of any data or control lines
-short circuit of the data or control lines
-port not made as output
-wrong or incomplete initializing commands
-wrong method of activating the enable pin
-insufficient delay
Check all of them.