As you know on Redmi Mi phones, there is a security option for the user, that they can create Mi Account to Recover the phone, in case you forgot the user name and password of the account it's difficult to open the phone after doing a hard reset. Here is the tutorial or topic about Xiaomi Redmi Mi phones, that can you remove or delete or bypass Mi Account after hard reset or flash or update the phone software.
Why Redmi Mi Account Need?
If you format or wipe data of the Mi phone using hard keys or buttons and the phone has latest Mi firmware or Xiaomi MIUI 7 higher version firmware, then it will ask for Mi account login at the start up of the phone or ask to "Activate this device", see the below image.
|Redmi Mi Activate This Device|
Now the problem is how you can overcome the problem of Mi Account and can you delete the Mi account or bypass the Mi cloud account. See the below details to know whether its possible to disable the Mi Account. Not all the model of Redmi Mi can be unlock but some can be unlocked or bypass the Mi account. Try the following process on the phone to unlock Mi account on the phone.
Redmi FRP Unlock or Mi Account Bypass:
1) You can remove Mi account using china flashing box, Miracle box support to remove Mi account on Redmi phone using fastboot mode.
2) Another process is you can downgrade the firmware or software of the phone, i.e. if you have the latest MIUI firmware then flash with lowest version i.e. 6 or 5 if available for your phone.
You can download firmware from Xiaomi website or search Google for Redmi Mi Fastboot ROM.