The Stable update OS4.0.0.7.XOCCNXM has been officially released for Xiaomi 15 (codename is dada). 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.
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Download Xiaomi 15 (dada) China HyperOS OS4.0.0.7.XOCCNXM Recovery ROM with Android 17.0. Firmware size is 8.7 GB.