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In this video tutorial, I'll be explaining how to backup and restore QCN of a Qualcomm Android device
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using Qualcomm Flash Image Loader or QFIL. For you to backup or restore
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QCN, you need to have boot the device or enabled Diagnostic mode
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on the device. We have a guide on how to enable Diag mode on your Qualcomm Android device. You also
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need to have installed your QFIL from QPST
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Now, don't forget that the QCN helps you fix NV related issues like baseband
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issues, IMEI issues, network detection issues and rests alright? Now once you
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have the device in Diag mode, you connect it to the PC while still powered on then you
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launch QFIL. Once QFIL comes up, you'll see the device detected as Qualcomm
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HS-USB Android DIAG. So now this device is in Diagnostic mode and its detected
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correctly. Now, you head over to Tools, click on QCN Backup Restore. Take note of the
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path where your QCN file is going to get saved to.
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alright and then you click Backup QCN.
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Once you do that, you'll see the status here. Just sit back and wait while QFIL backs
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up the QCN file.
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Alright! So QCN backup is complete. I have Backup QCN Succeed. You head
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over to the directory (mine is Hovatek folder). I have my saved_qcn
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here. Now to restore, it's the same procedure; your device in diagnostic
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mode but this time around, you select Browse and then you
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select the QCN file which you intend to restore and then you select Restore
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QCN. You just wait while QFIL restores the QCN to the device. Alright! So we have
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Restore Succeeded. At this point, you can disconnect the device, maybe reboot
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and do whatever you wish to do. So that's
how to backup and restore QCN on
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a Qualcomm Android device using QFIL or Qualcomm Flash Image Loader --------------------------
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