lcd screen showing blocks even though wiring is correct

Using Arduino Displays
29

https://drive.google.com/file/d/0B-uozw6XsukkTU1OSkJFcHJGdDQ/view?usp=drivesdk

https://drive.google.com/file/d/0B-uozw6XsukkQnlUcldsV3V3QnM/view?usp=drivesdk

https://drive.google.com/file/d/0B-uozw6Xsukkam1tbURwMm5JSU0/view?usp=drivesdk

https://drive.google.com/file/d/0B-uozw6XsukkTTVjTDNTVmtKYWc/view?usp=drivesdk

https://drive.google.com/file/d/0B-uozw6XsukkdXhnQ01BRF9yM3M/view?usp=drivesdk

https://drive.google.com/file/d/0B-uozw6XsukkbW00Z1RJUV9qdW8/view?usp=drivesdk