Download Redmi Note 9 Pro Max (excalibur) V126.96.36.199.RJXINXM MIUI 12.5 Stable Full Rom
09 September 2021
The Stable update V188.8.131.52.RJXINXM has been officially released for Redmi Note 9 Pro Max (codename is excalibur). 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 ROM, xiaomiROM.com do not own and never modified those firmwares，you will always download the file from Xiaomi server.