The Stable update OS1.0.5.0.ULFMIXM has been officially released for Redmi K50 Ultra / Xiaomi 12T Pro (codename is diting). 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 MIUI or HyperOS ROM, xiaomiROM.com do not own and never modified those firmwares，you will always download the file from Xiaomi server.
You may interest in those contents: Redmi K50 Ultra / Xiaomi 12T Pro ROM Topics Xiaomi Devices Index
Download Xiaomi 12t pro (diting) Global HyperOS OS1.0.5.0.ULFMIXM Recovery ROM with Android 14.0. Firmware size is 5.7 GB.
Download Xiaomi 12t pro (diting) Global HyperOS OS1.0.5.0.ULFMIXM Fastboot ROM with Android 14.0. Firmware size is 7.3 GB.