For the following models of safes manufactured by "Luka": SHM 44 / E, SHO 065 / E, SHO 085 / E, SHO 10 / E, SHZB 125 / E, SHZB 140 / E, SHZB 150 / E were installed electronic code locks the new series. The lock has an updated design and differences in the recoding. Look for this new instruction you can link: Guide to the safes with lock series YES.