Download Mi Flash Tool (latest version).
Boot phone into Fastboot mode (Volume Down + Power). Firmware REDMI 9A
Download Fastboot ROM for Redmi 9A (e.g., dandelion_global_images_V12.5.8.0...tgz ). Extract it. Download Mi Flash Tool (latest version)
Download Recovery ROM ( .zip file) for your region. Firmware REDMI 9A