Redmi Note 3G/4G : Xiaomi account password, lock screen password-related Problems and Soultions

I forgot my Redmi Note 4G device’s lock screen password, how do I unlock the screen? If you forget to set a lock screen password, making it impossible to enter the system, you can log in using the following ways: 
1 If your phone uses a "forgotten password" option to bind a Google account or Xiaomi account to the phone, enter an incorrect password 5 times in the lock screen. Click the "Forgot Password", the system will prompt you to enter a bind Google account password (Xiaomi account password) to unlock. 
2. If your phone binds a Xiaomi account and has a lookup phone feature, you can also visit Xiaomi cloud services at i.xiaomi.com, select Find phone - lock the phone, enter a new 8-digit password, confirm lock, then enter the password to unlock the phone. 
3 If your phone is not bound to any account, this feature is a last resort as it will delete all data on phone. It is mainly for mobile phone users to ensure information security (wiping all data from phone). You can enter Recovery Mode and clear user data (This will clear your messages, contacts, call records, account number and other personal information). (Clear Methods: In the off state, click on the phone volume + power button to enter recovery mode, volume up and down keys to select, power button, said OK, and then select: Language - >> Clear Data - >> clear user data - >> return main Menu - >> restart the phone). 

I forgot my Redmi Note 3G device’s lock screen password, how do I unlock the screen? If you forget to set a lock screen password, making it impossible to enter the system, you can log in the following ways: 
1 If your phone uses a "forgotten password" option to bind a Google account or Xiaomi account to the phone, enter an incorrect password 5 times in the lock screen. Click the "Forgot Password", the system will prompt you to enter a bind Google account password (Xiaomi account password) to unlock. 
2. If your phone binds a Xiaomi account and has a lookup phone feature, you can also visit Xiaomi cloud services at i.xiaomi.com, select Find phone - lock the phone, enter a new 8-digit password, confirm lock, then enter the password to unlock the phone. 
3 If your phone is not bound to any account, this feature is a last resort as it will delete all data on phone. It is mainly for mobile phone users to ensure information security (wiping all data from phone). You can enter Recovery Mode to clear user data (This will clear your messages, contacts, call records, account number and other personal information, and analog SD card data) can be. (Clear Methods: In the off state, the phone click the volume down + power button to enter recovery mode, then the volume down for the selection, the volume is confirmed, move the cursor to the recovery, click on the volume, wait about 10 seconds, you will see green robot, then click the power button, you can see the recovery screen, select wipe data / factory reset, then select yes, and wait for the system to reboot). 

I forgot my Redmi account password that was bound to my phone.If you have forgotten Xiaomi account password, you can recover your password via two ways: 
1 Go http://www.mi.com login page, select the "Forgot Password" to retrieve your password. 
2 You can log https://account.xiaomi.com/pass/forgetPassword to request for Xiaomi Staff to manually reset your password. (Please remember to provide the Xiaomi phone IMEI number that the account was bound to. If there is a purchase order, please provide photo ID card, be sure that the photo is clearly visible.)