Please read the OP post #1, first page, it says:Hi,
Does the update with fastboot erase my files ?
(Redmi Note 11 Pro 5G)
"Installing with Fastboot:
... Run one of the installation scripts... first_install_with_data_format - with data wipe, if you're flashing Xiaomi.eu ROM for the first time or downgrading.
- update_rom - without data wipe"