Restoring, fixing or upgrading Xiaomi Redmi Note 9 5G (China) can be easily done using the firmware in this post. Aside from repairing any software associated fault on your smartphone, the fastboot ROM can be used to migrate from Beta to Stable ROM (and vice versa). To put it simply, this firmware will guide you through restoring your device to its default factory state. If you currently have a rooted device and/or modified other partitions of the phone, flashing the Fastboot ROM will overwrite all existing modified partitions and replace with factory software. So, you should ensure to backup all…