- 4 -
2.3 Open the door from the inside
③
Smartphone
· When you activate the lock and see the message “Low battery”, you should replace the batteries.
· Use 3 high-quality alkaline AA batteries for replacement.
· Please don’t use any rechargeable batteries.
Note: Lithium batteries may have a longer life, but when they begin to run outof battery, they drain
fast. U-tec doesn’t recommend them, as you will not have enought time to change them before
the lock becomes non-functional.
2.5 Replace the battery
Use your smartphone to unlock. Please refer to the guide in the U-tec App.
Note: All data will be erased if you reset the UL3 to factory default settings.
Step 1. Remove the Battery Cover.
Step 2. Use the Reset Needle and press the Reset Button for 3 seconds until you hear
one long beep and two short beeps. The message display will show No User
Step 3. If the UL3 is paired with the U-tec App, you must tap "Delete" from the Advanced
tab in the Settings section of the lock.
U-Bolt Pro
Rotate the handle to open the door.
2.4 Reset the Lock
