If you enter the wrong PIN several times in a row, you may encounter the following situations. Depending on the problem you're facing, refer to the corresponding resolution steps to return to the password input screen. Thereafter, you can use one of the two methods below to address the issue of PIN login failure:

• Enter the ‘Challenge Phrase’     
  Act according to the prompts displayed on the screen. Once entered, you will be redirected to the password login screen. You can then resolve the PIN login failure using one of the following two methods. (For example, enter A1B2C3 as shown below)     
  
• The Message 'To try again, restart your device' Appears     
  Click on the [Power] icon in the bottom right corner of the screen①, then select [Restart]②. After restarting, you will return to the password login screen. You can then resolve the PIN login failure using one of the following two methods.     
  
• The Message 'Your PIN will be disabled for X amount of time' Appears     
  Please wait patiently for the indicated disable time to elapse, after which the system will revert to the password login screen. You can then resolve the PIN login failure using one of the following two methods.     
  Note: The suspension time may be extended with an increase in the number of incorrect entries.     
  

If you have set up a local account password, you can use it to access the Windows system when PIN login is not possible. Please follow the steps below:

1. Click on [Sign-in options]①, then select [Password]② to log into the Windows system.    
   
2. Once you've reached the desktop, remove the original PIN to prevent the issue from recurring. Follow the corresponding instructions for your device's current version of the Windows operating system:

If your device is set up with a Microsoft account, you may switch to using your Microsoft account for login when PIN login is ineffective. Please follow these steps:

1. On the Windows login screen, click [I forgot my PIN]①.    
   Note: If you don't see ‘I forgot my PIN’, select ‘Sign-in options’ and then select ‘Enter your password’ to log in to the device using your Microsoft account password.    
   
2. Enter your Microsoft account password② and click [Sign in]③.    
   
3. For your protection, Microsoft must verify your identity before you can proceed with resetting your PIN. Choose how you want to receive the verification code④.    
   
4. Depending on the contact method you chose, retype the first part of the email address or the last four digits of the phone number hinted at in the previous window⑤, then click [Send code]⑥.    
   
5. Microsoft will send a verification code to the email or phone number you selected. Go to the recovery phone or email for where you expect to receive the code. Enter the verification code⑦ and click [Verify]⑧.    
   
6. After the window confirming whether to reset the PIN appears, click [Continue]⑨.    
   
7. You can now set a new PIN.    
   

Question 1: When typing the password using the keyboard, the input does not appear on the screen.

Answer 1: You can use the on-screen keyboard to input your password.

• Windows 11 operating system    
  Click the [Accessibility] icon in the bottom right corner of the screen①, turn on the [On-Screen Keyboard]②, and then use it to select the keys for entering your password.    
  
• Windows 10 operating system    
  Click the [Ease of access] icon in the bottom right corner of the screen①, click the [On-Screen Keyboard]②, and then use it to select the keys for entering your password.