You need to only download one of the following flash files. Fastboot Flash File or Full ROM/Update File.
Fastboot Flash Files
Full ROM/Update Files
Please follow the below guides for Flashing or Updating your Xiaomi device
If you are ready to wipe all your data and completely reinstall (clean install) the latest ROM on your device then select below. (All your data will be erased).
If you only want to update to the latest version from the older version without loosing your data then select the below option.
Updating Guide (for update rom files)
A Windows PC/laptop will be needed. Make sure that your device is fully charged or has enough power for this process. All user data will be purged/erased in flashing process. Please back up your data and think twice before proceeding.
You can also download flash tool and drivers for Redmi device from below.