Hovatek Forum MOBILE Android [Tutorial] How to backup & restore Qualcomm QCN using QFIL
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[Tutorial] How to backup & restore Qualcomm QCN using QFIL

[Tutorial] How to backup & restore Qualcomm QCN using QFIL

hovatek
hovatek
hovatek
Administrator
49,570
13-12-2018, 11:09 PM
#1



This step-by-step guide will explain how to use Qualcomm Flash Image Loader (QFIL) to backup or restore QCN to a Qualcomm Android device. QCN helps you fix NV-related issues like baseband, IMEI, network detection etc.

Requirements


Steps to backup or restore Qualcomm QCN using QFIL


Follow the steps below to backup or write QCN to Qualcomm Android with QFIL

See the video tutorial below or @ https://youtu.be/uiz2ymlITbA


Backing up / reading QCN


  1. Connect the device to the PC via a USB cord while in Diag mode

  2. Launch QFIL. The device should be detected as Qualcomm HS-USB Android DIAG 90ID

    [Image: Backup-restore-Qualcomm-QCN-using-QFIL-1.webp]

  3. Click Tools

    [Image: Backup-restore-Qualcomm-QCN-using-QFIL-2.webp]

  4. Click QCN Backup Restore

    [Image: Backup-restore-Qualcomm-QCN-using-QFIL-3.webp]

  5. The QFIL QCN backup restore dashboard should open

    [Image: Backup-restore-Qualcomm-QCN-using-QFIL-4.webp]

  6. Click Backup QCN

    [Image: Backup-restore-Qualcomm-QCN-using-QFIL-5.webp]

  7. Wait while QFIL extracts the device's QCN

    [Image: Backup-restore-Qualcomm-QCN-using-QFIL-6.webp]

  8. You should get a Backup QCN Succeed message once completed

    [Image: Backup-restore-Qualcomm-QCN-using-QFIL-7.webp]

  9. Open the QCN File path and you should find the .qcn file

    [Image: Backup-restore-Qualcomm-QCN-using-QFIL-8.webp]

Restoring / flashing QCN

  • With the device still connected in Diag mode, click Browse

    [Image: Backup-restore-Qualcomm-QCN-using-QFIL-9.webp]

  • Highlight the .qcn file and click Open

    [Image: Backup-restore-Qualcomm-QCN-using-QFIL-10.webp]

  • Click Restore QCN

    [Image: Backup-restore-Qualcomm-QCN-using-QFIL-11.webp]

  • Wait while QFIL restores the QCN

    [Image: Backup-restore-Qualcomm-QCN-using-QFIL-12.webp]

  • You should get a Restore Succeed once done

    [Image: Backup-restore-Qualcomm-QCN-using-QFIL-13.webp]

Important Notice
  • Diag mode is different from EDL mode, don't mix them up
  • You may download QFIL as a standalone or QPST (which comes with QFIL and other tools
  • If QFIL doesn't show the device as Qualcomm HS-USB Android DIAG 90ID (while connected and in Diag mode) then click Port and manually select
  • It's important you only restore a QCN backup made from a working phone of the same model to avoid bricking

Video Transcript
Quote:In this video tutorial, I'll be explaining how to backup and restore QCN of a Qualcomm Android device using Qualcomm Flash Image Loader or QFIL. For you to backup or restore QCN, you need to have boot the device or enabled Diagnostic mode on the device. We have a guide on how to enable Diag mode on your Qualcomm Android device. You also need to have installed  your QFIL from QPST

Now, don't forget that the QCN helps you fix NV related issues like baseband issues, IMEI issues, network detection issues and rests alright? Now once you have the device in Diag mode, you connect it to the PC while still powered on then you launch QFIL. Once QFIL comes up, you'll see the device detected as Qualcomm HS-USB Android DIAG. So now this device is in Diagnostic mode and its detected correctly.

Now, you head over to Tools, click on QCN Backup Restore. Take note of the path where your QCN file is going to get saved to. alright and then you click Backup QCN. Once you do that, you'll see the status here. Just sit back and wait while QFIL backs up the QCN file. Alright! So QCN backup is complete. I have Backup QCN Succeed. You head over to the directory (mine is Hovatek folder). I have my saved_qcn here.

Now to restore, it's the same procedure; your device in diagnostic mode but this time around, you select Browse and then you select the QCN file which you intend to restore and then you select Restore QCN. You just wait while QFIL restores the QCN to the device. Alright! So we have Restore Succeeded. At this point, you can disconnect the device, maybe reboot and do whatever you wish to do.

So that's how to backup and restore QCN on a Qualcomm Android device using QFIL or Qualcomm Flash Image Loader
This post was last modified: 07-02-2024, 08:04 AM by hovatek.

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Noblex
Noblex
Noblex
Respected Member
111
27-04-2019, 05:33 PM
#2
i followed the detailed step, but am unable to back up qcn of my inifinx x6233

the error message is in the screenshot
Noblex
Noblex
Noblex
Respected Member
111
27-04-2019, 05:38 PM
#3
This is the error message from the Qfil while trying to back up my phone qcn
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Noblex
Noblex
Noblex
Respected Member
111
28-04-2019, 07:21 PM
#4
Pls someone help
X3non
X3non
X3non
Recognized Contributor
22,062
29-04-2019, 12:01 PM
#5



(27-04-2019, 05:33 PM)Noblex i followed the detailed step, but am unable to back up qcn of my inifinx x6233

the error message is in the screenshot

create a new thread for your device issue
see https://www.hovatek.com/forum/thread-514.html for how to create a thread
temmiecool
temmiecool
temmiecool
Junior Member
21
20-07-2021, 05:54 PM
#6
(27-04-2019, 05:38 PM)Noblex This is the error message from the Qfil while trying to back up my phone qcn
hello, please were you able to solve this error? and how did you...cos I'm having the same problem.
X3non
X3non
X3non
Recognized Contributor
22,062
21-07-2021, 02:00 PM
#7
(20-07-2021, 05:54 PM)temmiecool
(27-04-2019, 05:38 PM)Noblex This is the error message from the Qfil while trying to back up my phone qcn
hello, please were you able to solve this error? and how did you...cos I'm having the same problem.

create a new thread for this by clicking "ask question" at the top
in the new thread, state the device model and how you enabled diag mode
yejwialgaga1
yejwialgaga1
yejwialgaga1
Newbie
1
16-12-2023, 05:08 AM
#8
help me. Iam stuck in waiting for phone connection. everything is correct but its still stuck. What should I do?
hovatek
hovatek
hovatek
Administrator
49,570
05-01-2024, 02:01 PM
#9
(16-12-2023, 05:08 AM)yejwialgaga1 help me. Iam stuck in waiting for phone connection. everything is correct but its still stuck. What should I do?

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