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HyperOS updates for Xiaomi Redmi 9 Activ (codename cattail). Official Fastboot ROM and Recovery ROM firmware, build V12.0.18.0.QCTINXM.

Fastboot package: cattail_in_global_images_V12.0.18.0.QCTINXM_20220826.0000.00_10.0_in_b1c7409a05.tgz

Download V12.0.18.0.QCTINXM Fastboot ROM

Xiaomi Redmi 9 Activ Details

CPU Helio G35

Latest Version V12.0.18.0.QCTINXM

Android Version 10

OS Version MIUI 12.0

Display Size 6.53"

EOL Status 1970-01-01

Fastboot ROM and Recovery ROM

Download the V12.0.18.0.QCTINXM Fastboot ROM or Recovery ROM for Xiaomi Redmi 9 Activ (cattail). Recovery ROM installs from the Updater app. Fastboot ROM flashes with Mi Flash Tool.

Download the Recovery ROM.
Open the Updater app on your Xiaomi Redmi 9 Activ.
Tap the three dots and select Choose update package.
Select the downloaded ROM. The phone reboots into the new version when it finishes.

Fastboot ROM

Download the Fastboot ROM package (cattail_in_global_images_V12.0.18.0.QCTINXM_20220826.0000.00_10.0_in_b1c7409a05.tgz).
Boot the phone into Fastboot and connect it to a computer.
Flash the package with Mi Flash Tool. Fastboot flashing erases data.

Note: Match the codename cattail before flashing. Beta builds may not install from the stock updater.