geth ship door will not open

hello everyone, right after i board the huge geth ship the quarian opens the door for me but when i get back from the cut scene the door is closed, i have tried EVERYTHING, if someone knows the fix please help , or, could anyone send me their save game file just after opening the door, or even the mission? i really want to play the rest of the game and this is hindering me... help ! thanks in advance