The Stable update OS1.0.8.0.UCVIDXM has been officially released for Redmi 12C / POCO C55 (codename is earth). 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 12C / POCO C55 ROM Topics Xiaomi Devices Index
Download Redmi 12c (earth) Indonesia (ID) HyperOS OS1.0.8.0.UCVIDXM Recovery ROM with Android 14.0. Firmware size is 4.5 GB.