The Stable update V10.4.2.0.PFKCNXM has been officially released for Redmi K20 Pro Premium Edition (codename is raphaels). 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 Redmi k20 pro premium edition (raphaels) China MIUI 10 V10.4.2.0.PFKCNXM Recovery ROM with Android 9.0. Firmware size is 2.8 GB.