Safe International Digital Electronic Safe Lockbox Gun Jewelry Lock Box Tool "clean jewelry" Questions

...it with a key Check batteries and replace, also make sure contacts for batteries in the safe are clean and not correded with rust, if so rub with sandpaper and clean

lost key to micromark electronic safe battery flat - no power check the wires to the plug on the 9 v battery or clean the terminals

open and remove the battery holder, if the battery has leaked then you need to wash with spirit and clean the terminals  before the new one is set within.