The Stable update V12.0.2.0.RJSCNXM has been officially released for Redmi Note 9 Pro 5G / Mi 10i / Mi 10T Lite (codename is gauguin). Before updating, please make sure you have downloaded the exact ROM matching your Xiaomi phone/tablet. In Fastboot mode, you can check model code by typing fastboot getvar product in cmd/shell.
The firmware files posted here are all official Xiaomi MIUI or HyperOS ROM, xiaomiROM.com do not own and never modified those firmwares，you will always download the file from Xiaomi server.
You may interest in those contents: Redmi Note 9 Pro 5G / Mi 10i / Mi 10T Lite ROM Topics Xiaomi Devices Index
Download Redmi note 9 pro 5g (gauguin) China MIUI 12 V12.0.2.0.RJSCNXM Recovery ROM with Android 11.0. Firmware size is 3.4 GB.