ALPHA ed-LockPLUS, emergency unlocking due to battery exhaustion

"The numeric keypad is not responding"

Is it MIWA or ALPHA?Which electronic lock is this?When I looked up photos online based on the property name, I found that it was ed-Lock PLUS.The lock is GOAL TLK.

When we arrived at the location, we found that the client had already solved the problem.It seemed to be running on the last battery.The client himself did not know how to replace the battery.There was a sticker on the front door with instructions on how to use it, but I was told that I couldn't do it myself, so I proceeded to replace the battery.

When I installed the replacement battery, the numeric keypad did not light up.When I checked the battery terminals, there was white powder attached to them.The fluid inside the battery may have leaked out.By removing it, the voltage was restored.