Thanks for your help guys, l have look at the pins, they all have the same height, now i realized that the 3.3v led is on when i push the chip to the right, i have to hold it there with my hand, as soon as i release it, the light goes off.
I think there is a problem with the connector on the modchip. A bad solder joint or something....
Any advice??
Otherwise i will probably send the chip back for a new one....