I tried searching for a video, but could not locate one on replacing the bisquette sensor in the P10. The P10 is fairly new, so there is not much out there on repairs and replacement. If you are under warranty, I feel Bradley should replace the turntable, rather than have you make that repair.
The furthest I've gotten with the turntable is removing the turntable from the cabinet, and taking off the top cover to remove a jammed bisquette. Your screws may still be rusted. The reason I don't feel they are screwed in too tight is that they are self taping screws screwed into thin stainless steel. If they were over tighten they would have stripped the stainless steel. The screw that was rusted in my turntable showed no damage on the head, but when I finally got the screw out the threads were heavily rusted.
If the head is not stripped, you need to use the right size screw driver so you can use force without it stripping the head. I have a set of Stanley screw drivers with different size heads, and found the right size. Unfortunately the size of the head is not marked on the screw driver. Once I got the screws removed, and the cables detached; the turntable slid out easily. Just as a precaution you may want to squirt the screws with some WD40. Let it soak for a while, then give it a try. Of course you will have to clean and burn off the WD40 prior to cooking any food.
Like I mentioned above, once I got the turntable disconnected from the P10, I only remove the top cover. The directions in the manual make it seem more difficult than it is. To get to the sensor you don't remove the cover, but turn it over remove the burner controller then the four screws that connect the bottom plate to the middle plate. The most difficult part you may come across is removing the screws; if they have rust damage.
