SM-J727P QCN File Repair Network : إصلاح مشكلة الشبكة

J727P Repair Network
Samsung Galaxy J7 Prex QCN File


Samsung Galaxy J7 Prex Fix No Service And Network Repair QCN File
  If You Missing Mobile Network And Showing Message
 (no service - Service is disabled - searching for service - IMEI 0 - IMEI Cert Fail)
After Unlock Or Write NV Unlock File
You Can To Fix it by This QCN File 



What Is QCN File :
QCN implies qualcomm alignment organize file.Basically QCN record worked in all Samsung Galaxy cell phone and most recent android cell phone. QCN is the primary and touchy document of system, covered up in the most profound center of cell phone interior memory record framework in efs envelope, where all data of imei and baseband are spared. 

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Warining
Save a backup before starting the process to restore in case of any problem
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How To Backup QCN
Z3X SW use original format of file, this means - you can read QCN by QPST and then write via Z3X, and QCN readed by z3x you can write via QPST.

To backup/restore QCN, phone diagnostic port must be enabled.

  1. Power on the phone.
  2. Enter Recovery and enable CP Logging, reboot phone.
  3. Type ##3424# and select Enable DM Mode.                                                                                   Or use 'Activate Diag' function from 'Repair' tab.
  4. Connect the phone to PC with USB cable, install drivers if needed.
  5.   Select diagnostic port in port settings.
  6.   Press 'Read QCN' button to read NV backup or 'Write QCN' to restore.                            


How To Write QCN

  1. Power on the phone.
  2. Enter Recovery and enable CP Logging, reboot phone.
  3. Type ##3424# and select Enable DM Mode.                                                                                   Or use 'Activate Diag' function from 'Repair' tab.
  4. Connect the phone to PC with USB cable, install drivers if needed.
  5.   Select diagnostic port in port settings.
  6.   Press 'Write QCN' to restore.                        




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