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You use a hammer or something that can replace a hammer and smash the screwdriver deeper into it. Generally, slippery screws are made of wrought iron and have a soft texture. If it's pig iron, it's just going to crumble and not be in the same situation as you.
Here's how to solve the problem.
1. Use pliers to clamp the outer circle and screw out, the general thread, screw out left, and screw right in. >>>More
If you really can't fix it, find a professional door lock! This way your lock cylinder can still be kept, if you stiffen it yourself. It is possible that the lock cylinder is also broken. >>>More
Stick a layer of plastic wrap on the ground underneath to solve the problem.
Can't you unscrew it? If you can't unscrew it, you can go to the hardware store to buy a universal anti-rust lubricant, spray it a few times, and the rust spots of the screws will fall off, which is very easy to use, and you can remove rust and unscrew the screws.
I'm a professional toilet repair specialist. It's an easy question. You use that long, thin spring from the toilet bowl at home. >>>More