LG D290N 用户手册

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页码 262
13
 WARNING
Precautions to take when using pattern lock.
It is very important to remember the unlock pattern you set. You will not be able to 
access your phone if you use an incorrect pattern 5 times. You have 5 opportunities to 
enter your unlock pattern, PIN or password. If you have used all 5 opportunities, you can 
try again after 30 seconds.
When you can’t recall your unlock Pattern, PIN or Password:
< If you have forgotten your pattern >
If you logged in to your Google account on the phone but failed to enter the correct pattern 5 times, tap the 
Forgot pattern? button at the bottom of the screen. You are then required to log in with your Google Account or 
you have to enter the Backup PIN which you entered when creating your Pattern Lock.
If you have not created a Google account on the phone or you forgot Backup PIN, you have to perform a hard 
reset.
< If you have forgotten your PIN or Password > 
If you forget your PIN or Password, you will need to perform a hard reset.
Caution: If you perform a hard reset, all user applications and user data will be deleted.
NOTE: If you have not logged into your Google Account and have forgotten your Unlock 
Pattern, you will need to enter your Backup PIN.
5.  Using the Hard Reset (Factory Reset)
If your phone does not restore to its original condition, use a Hard Reset (Factory Reset) to initialize it.
1  
Turn the power off.
2  
Press and hold the Power/Lock Key + Volume Down Key on the phone.
3  
Release the Power/Lock Key only when the LG logo is displayed, then immediately press and hold the 
Power/Lock Key again.
4  
Release all keys when the Factory data reset screen is displayed.
5  
Press the Volume Key to scroll to the desired option, then press the Power/Lock Key to confirm. 
6  
Press the Volume Key to scroll to the desired option, then press the Power/Lock Key to confirm one more 
time.