4-3. Do-it-yourself maintenance
Replace the battery with a new one if it is discharged.
n You will need the following items:
l Flathead screwdriver
l Small Phillips-head screwdriver
l Lithium battery (CR1632)
n Replacing the battery
Take out the mechanical key.
Remove the cover.
Remove the depleted battery.
Insert a new battery with the “+”
terminal facing up.
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