Laser drive not moving after closing lid after replacement.

So I opened and cleaned my ps3 today, and I made SURE that all the cables were in their respective places. Then I plugged it in and went to test it out.When I pressed the power button,the laser "Jumped a bit"(that is normal at boot,when it is testing it), so that meant that it has power. But when I pressed the sensor button to try it out,nothing happened. It's like the sensor is not even plugged in.But it Is and I doublechecked everything. But nothing...

Please help me, I used up all my money on this ps3 and 3 games, I can't just give up on it.

And any replacements are out of question(exept for ones 5-10 bucks)because as I said

I spent all my money on this ps3... Hope someone can help.

If you need any pics or vids of the cables and the console,just say it.