Fingerprint Deletion (All-at-once)

ขั้นตอน

1. Open battery compartment cover. Press [Registration] button once. ~beep sound will be heard.
2. Enter pin number, followed by [✱] button. Check if the number [1, 2, 3, 4, 8, 9] is lighted on the number pad. Press [9] button.
3. Long Press [#] button for 5 seconds. When the melody is heard, All fingerprints are deleted.