Download MIUI V11.0.4.0 China Stable Fastboot ROM for Redmi 10X 5G from here.
File name: atom_images_V11.0.4.0.QJHCNXM_20200529.0000.00_10.0_cn_f8791c4971.tgz
Device: Redmi 10X 5G
Codename: #atom
Region: China
Version: V11.0.4.0.QJHCNXM
Android: 10.0
Size: 3.0 GB