The Stable update OS3.0.301.0.WPTCNXM has been officially released for Xiaomi 17T (codename is chagall). 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: Xiaomi 17T ROM Topics Xiaomi Devices Index
Download Xiaomi 17t (chagall) China HyperOS OS3.0.301.0.WPTCNXM Recovery ROM with Android 16.0. Firmware size is 9.0 GB.