Today we took out the main driving switch to open and clean it because the key was difficult to turn in it. So we took it out, but failed to open it, because the key wouldn't turn in the lock. It also wouldn't install back, because after we tried to turn the key in the lock, a small trigger on the surface of the lock wouldn't move inside. So we tried to start the car without using the key, by a screwdriver, the chip we placed near the hole for the driving switch. One time it started ok. But the second time was a failure. The screwdriver almost reached position "start" and was suddenly moved to position "off" by the car mechanism. After that the screwdriver wouldn't turn. And transmission was locked. SO we can't start the car. Can you give any advice? or maybe you had the same situation? what can it be? is it a security immobilisation system?