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The lock cylinder is broken. Remove it and replace it, otherwise there will be this problem in the future.
How to disassemble the handle lock:
1.Unscrew the screws fixing the lock cylinder on the panel first, remove the lock cylinder 2 and then unscrew the remaining 2 screws on the panel, and the 2 panels can be taken down 3The screws on the lock body on the side of the door are also unscrewed and removed. >>>More
Your oil has basically solidified, so there is no good way, heat the key when you open the lock, but this is not a good way, it can only be used temporarily, and it will be a problem for a long time, so when the door can be opened, you can change the lock core, and now you can change the key on the market.
Remove the lock and you're ready to enter.
Use the card slide to see if you can scratch it, and if you can't scratch it, you can only destroy the lock, or try to find a lock.
Hello, don't worry, in this case, it is recommended that you find a professional for repair and replacement, such as contacting the anti-theft door manufacturer or finding a regular lock company (you can call 110 to consult). It's safe and secure. >>>More