Samsung SHS-2920 Electronic lock Battery dead unlock

"I can't open the numeric keypad, so I requested unlocking."

It is said that the key did not open when I got home last night.She stayed elsewhere overnight and called for a request today.

The apartment is not as old as an electronic lock, but rather old in February 1980 (2 years old).

What's more, Samsung's electronic lock is a sold-out model with no support, whether it's cheap or bad. You can get it for about 10,000 YEN. It seems to be an OEM supply from EPIC, but the main body is full of Korean notation.

However, the reputation on the net is not so bad.

Anyway, let's take an emergency response to see if the battery is dead.Power cannot be supplied properly, probably because the contact terminals are rusty.After trying again and again, the display finally appeared and the lock was unlocked.After all the battery was dead.Replace the battery and you're done.

If it breaks down, replace it instead of repairing it. If it is 10,000 YEN, the cost performance will be good.The translation of the Japanese manual is in Japanese that I can't understand, and I'm quite stressed and can't understand how to operate it.