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Remove the handle, and unscrew a fixed lock cylinder screw on the lock body.
Not the reason why the cylinder is long.
Here's why; 1. The new lock cylinder is not very lubricated, you can add a little pencil powder inside the lock cylinder hole, which can play a lubricating role and make the key insert and unplug flexible. >>>More
Adjust the position little by little, you can only try a little bit, if you still can't get it open, the last thing is to find a lock company, they will be very professional and quite clever will be you. >>>More
With the development of science and technology, many people are equipped with anti-theft doors at home, but they will also encounter various problems when using them, so what should I do if I can't take out the anti-theft door key? >>>More
Is the door open or not? If it's open, just buy a lock and replace it, if it's not open, call the door to unlock it.
Light the oil along the key and lubricate it quickly.