What is QCN ?
QCN means Qualcomm calibration network file .QCN file built in Xiaomi Phone,Samsung smart phone and latest Model android mobile phone. QCN is the main and required file for network, which is hidden in the core of mobile device internal memory file system. Inside EFS folder, where all required information of imei and baseband are stored.If QCN file damage, there will be network problem in your devices. Every device have differnet QCN file.Each QCN file store different imei and baseband.
So, In this post we upload ENG QCN for all xiaomi Models which is already tested 100% by admin. In this post, we upload MI A3 ENG QCN or Xiaomi MI A3 ENG QCN Patched ENG QCN file to fix imei issue.(Network problem)
How to Backup and Restore ENG QCN File?
- Download QPST Qualcomm Flash Tool and ENG QCN Xiaomi Redmi note 7.qcn from below link.
- Extract zip Xiaomi MI A3 ENG QCN and Qpst with 7zp or Winrar software.
- Open QPST Qualcomm flash tool and select qcn file or any other tools like unlocktool,hydra to write qcn (many more supported tool)
Download Xiaomi MI A3 ENG QCN :
MI A3 ENG QCN / Backup Link
QPST Qualcomm Flash Tool Setup / Backup Link
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