: It is typically stored in the phone's internal memory within the efs folder.

: Click on the Restore tab, browse to select your downloaded poco_x4_pro_5g_128gb.qcn file, and click Start .

Your computer cannot write data to the EFS partition unless the phone is placed into a special diagnostic state.

Understanding the POCO X4 Pro 5G QCN File for Network Repair

or specialized YouTube channels for the latest tested files.