What these files are
If the IMEI is null after flashing, it must be rewritten to match the sticker on the back of your device for legal operation. Important:
That said, here are sources for clean/blank QCN files for Redmi Note 11 4G (spes/spesn):
The Redmi Note 11 4G (XQCN/QCN) offers a range of free lifestyle and entertainment features, including: