you can do it urself.( [# g3 n# N- Q8 a O+ R
1 U% D: ?! t$ I Otake the brand name of ur lock, go to a locksmith store, you can find the inner parts with keys.4 ]5 a+ v! `* f+ H6 [1 V) Y0 J' E y
change the inner parts, u will be good, it is much cheaper than replace the whole locks.
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if it is complicated locks or u have 3-4 locks need to replace, call the locksmith store.7 ^' L! ~% X9 V9 w: |
u can find the number in yellow page, choose the one which near you. |