No text on I2C lcd serial blue 2004 from dx.com

sirion:
Sorry you where right

http://arduino.cc/forum/index.php/topic,106655.15.html

At the end , this was the solution many thanks !

I'm guessing you are referring to my post in that thread? I just modified it to include a mention of "GY-LCD-V1" as thats exactly the same board I have..... and I knew I wouldnt be the only one spending hours getting the thing to work! glad it helped you out.