Redmi 9 China Stable V12.0.7.0
OTA Apply for V12.0.6.0
https://hugeota.d.miui.com/V12.0.7.0.QJCCNXM/miui-blockota-lancelot-V12.0.6.0.QJCCNXM-V12.0.7.0.QJCCNXM-17a4633f0a-10.0.zip
Recovery ROM
https://hugeota.d.miui.com/V12.0.7.0.QJCCNXM/miui_LANCELOT_V12.0.7.0.QJCCNXM_07ac7287d0_10.0.zip
>>> All firmware: xiaomifirmware.net