Redmi 4A Rolex QCN File Tested

Redmi 4A Rolex QCN File

QCN ( Qualcomm Calibration Network ) is configuration file that contain security part, network config, modem, imei, band on Qualcomm SoC.

If qcn is corrupted it will cause problems like no network, imei null, baseband unknown even bootloop.

Now i'll share QCN file for Xiaomi Redmi 4A" Rolex "

To write QCN file, you need to activate diag mode. type *#*#13491#*#* on dial screen and check in device manager, diagnostic port must exist.

You can use QPST, QFIL or UFI androidtoolbox to write qcn file.


Xiaomi Redmi 4A " Rolex " Good QCN backup

password  :  www.samsdroid.com

Posted in: QCN File, Redmi 4A