4-2.Solutions To Malfunction Of The Product - Kaba EF780 User Manual

4-2 Solutions to Malfunction of the Product
How to use a 9V battery
If the product stops working due to the
battery discharge, insert a 9V square
battery and use a PIN code or a card
key to open the door.
Purchase a 9V battery in the nearest
convenience store or any electronic
shops. (The use of alkaline battery is
recommended)
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