Replacement LCD doesn't work properly, already the 2nd one
I broke my LCD on my iPhone 3G and purchased a Chinese replacement part, put in on slot 1 on the motherboard and I had to find the proper position for it to get the LCD working, on almost all moves it was black and off and than just white and then with the proper image but with stripes. Finding the "right" position made it actually shine pretty well with a good image, like on the original, but it lasted just till the next move and was unfortunately not the position with the LCD in a closed iPhone.
So I got pretty sure it was the fault of the tape which goes just out of the LCD and is connected to slot 1 and purchased a new LCD, from a different source though. And I have once again the same problem. Is there any possibility that it's the fault of the iPhone or did I just had the luck to get two broken LCD's in a row?