arduino LCD not printing characters

Projects General Guidance
1

Hi
I am trying to print "Hello world!" in LCD. Though the LCD gets powered up, the characters are not getting printed.
I went through a number of suggestions given for this problem earlier. One of the suggestions was to remove the LCD, and attach LED pins to the 6 inputs coming from Arduino, and check if the wiring doesn't have any broken connection.

I used LiquidCrystal lcd(12, 11, 5, 4, 3, 2); for the setup.

If i attach 6 LED pins to the inputs coming from 12, 11, 5, 4, 3, 2 , can you tell me which LEDs should glow while printing "Hello world!" character?

2

At some point nearly all of the LEDs will light. The print happens so fast that you may not see a flash.

Do you have a contrast pot or resistor on pin 3 of the LCD? Have you tried adjusting the contrast? Is pin 5 of the LCD grounded?

Does the LCD show anything?

Post your code if you want more help.