After a shock, my PS4 Slim keeps ejecting disc, afer the disc was out

Hi,

Excuse my english, i’m a french guy.

After a shock on top, my PS4 Slim is keeping ejecting disc when this one was out.

I try to dissassemble my ps4 to see what happened, if it was something broken inside. I saw nothing.

So when the disc is out, the PS4 make the noise of ejecting a disc, maybe 3 times. And it stops. Then, i can’t insert a disc. I have to reset or restart to put a disc, which can be accepted. (I put the disc until it stands on the slot, maybe 1/3 of the disc, then, after power on, the disc is “eaten”). So, i can play, the PS4 read the disc.

I try do relaunch the “power cycle”, several times. But, the problem is always there.

I read some description issues on forum, but no one was absolutely similar.

Maybe a sensor problem ? A gear problem ?

Thank you.