Source (link to git-repo or to original if based on someone elses unmodified work): https://github.com/indianets/beryllium_miui_vendor_firmware
UPDATE: Moved to separate Products
Please Visit https://t.me/pocovendor for latest links.
Stock Vendor+ Firmware zips to flash on your phone without changing system/ROM.
For more details visit https://t.me/pocovendor
Reboot to TWRP (or alike) recovery and flash zip.
=> If your ROM uses a customized vendor or a vendor_patch (like in OxygenOS ports), do not forget to flash that.
=> If you need Unencrypted data partition, do not forget to flash DFE after these zips, DFE changes things in vendor only.