Device Guides
LG G4
I can't turn on my mobile phone
This troubleshooting guide will take you through a number of possible causes to help you find a solution to your problem.
Possible cause 10:
The phone lock code is turned on: Key in your phone lock code. You can now turn off the phone lock code. If you have forgotten your phone lock code, contact the phone manufacturer for assistance.
List view
1. 1. Find "Select screen lock"
Slide your finger down the display starting from the top edge of your mobile phone.
Tap the settings icon.
Tap the settings icon.
Tap Display.
Tap Lock screen.
Tap Select screen lock.
2. 2. Select option
You can create several types of phone lock codes. The following steps show two examples:
Create phone lock code using a pattern, go to 2a.
Create phone lock code using a PIN, go to 2b.
Create phone lock code using a pattern, go to 2a.
Create phone lock code using a PIN, go to 2b.
3. 3. 2a - Create phone lock code using a pattern
Tap Pattern.
Tap and drag a point to connect at least four points.
Tap NEXT.
Repeat the selected phone lock code to confirm.
Repeat the selected phone lock code to confirm.
Tap CONFIRM.
Tap NEXT.
Key in a four-digit PIN and tap NEXT.
Key in the PIN again and tap OK.
Tap Show all notifications, Hide sensitive only or Hide all notifications.
Tap OK.
4. 4. 2b - Create phone lock code using a PIN
Tap PIN.
Key in the required phone lock code and tap NEXT.
Key in the phone lock code again and tap OK.
Tap Show all notifications, Hide sensitive only or Hide all notifications.
Tap OK.
5. 5. Turn off use phone lock code
Tap None.
6. 6. Return to the home screen
Tap the home icon to return to the home screen.
Step 5 of 21
You can create several types of phone lock codes. The following steps show two examples:Create phone lock code using a pattern, go to 2a.Create phone lock code using a PIN, go to 2b.
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