[SOLVED] 16x2 LCD damage? Hitachi HD44780 driver swapped pins

[K33rg4t3]

Hey
I have been connecting an LCD to Arduino but I made a mistake:

/*
  LiquidCrystal Library - Custom Characters

 Demonstrates how to add custom characters on an LCD  display.
 The LiquidCrystal library works with all LCD displays that are
 compatible with the  Hitachi HD44780 driver. There are many of
 them out there, and you can usually tell them by the 16-pin interface.

 This sketch prints "I <heart> Arduino!" and a little dancing man
 to the LCD.

  The circuit:
 * LCD RS pin to digital pin 12
 * LCD Enable pin to digital pin 11
 * LCD D4 pin to digital pin 5
 * LCD D5 pin to digital pin 4
 * LCD D6 pin to digital pin 3
 * LCD D7 pin to digital pin 2
 * LCD R/W pin to ground
 * 10K potentiometer:
 * ends to +5V and ground
 * wiper to LCD VO pin (pin 3)
 * 10K poterntiometer on pin A0
 
 created 21 Mar 2011
 by Tom Igoe
 modified 11 Nov 2013
 by Scott Fitzgerald
 
 Based on Adafruit's example at
 https://github.com/adafruit/SPI_VFD/blob/master/examples/createChar/createChar.pde

 This example code is in the public domain.
 http://www.arduino.cc/en/Tutorial/LiquidCrystal

 Also useful:
 http://icontexto.com/charactercreator/

 */

I have swapped D6 with D7 and now LCD is showing only rectangles.
Is it damaged for good or is there a way to fix it? I don't know, maybe reset it somehow or idk... thanks in advbvance!

 

[xenos]

No damage can be done by only swaping data pins.
Eighter you need contrast voltage trimmer adjusted or you have a code error (most probably).
Do you have one line of squares or two?

 

[K33rg4t3]

There was a bad solder point which stopped contacting EXACLY AT THE TIME I've swapped the pins.
Topic is closed, but thanks for clarification.

I had one line of scquare.s