Custom firmware replaces the stock system but often retains the stock vendor and modem firmware. Back up nvram , nvdata , and persist before flashing.
Warning: This erases all data and requires a PC. Firmware REDMI 9
Tap the MIUI logo 7-10 times to enable "Additional update features". Custom firmware replaces the stock system but often
Official recovery images are posted under the REDMI 9 section of new.c.mi.com . Firmware REDMI 9
The firmware for the (codenamed lancelot ) varies depending on your region and the method of installation you choose. Most users looking for "text" regarding this firmware are seeking either the official update steps or the requirements for a manual flash to unbrick or change ROM regions. Official Update Method (OTA)