Touch ID not working after clean termal paste

I seat the connections. I checked the pins looks good there is no any damage or anything. I do not understand what wrong. Logic board was so dirty I cleaed with Electronic Cleaner it's Falcon brand. Maybe about it?

Sorry, you'll need to find someone local to help you.

I don't use Electronic Cleaners as often they have oils within them. So its possible the cleaner messed you up and will need the logic board to be properly cleaned. But you may still have a issue within the TouchID sensor if you got it wet with the cleaner at which point you'll need a new one and as I explained its married to the logic board so it too will need to be replaced. Apple will take note of the cleaner residue and will not repair your system.

Bottom line: I think you need to throw the towel in and just get a replacement board & button.

There is no oil in this brand. That's why I use it. It also doesn't stay wet because it's a volatile substance. Can you tell me please where is this sensor? I check it. I cleaned so much macbook but it was first I cleaned touchbar model. I read in somewhere about sticky and grounding on sensor. Maybe this cleaner, cleaned this sticky and there is grounding problem? What you think?

@Selim - Even if the cleaner doesn't have anything within it, it could have pushed or dissolved something that is now interfering with the sensor or its logic.

The sensor is within the power button. Please don't take the assembly apart as that will for sure will damage it.

There is a point when we've gone as far as we can and need to pass the job off to someone else. This is one of those cases. One could speculate possibilities, but without diagnosing the problem at the component level all we are just throwing spaghetti at the wall to see what sticks! Not a very effective way to diagnose things.

Knowing your limitations and skill set is a sign of a good tech!