[GUIDE] QPST Tool - Backup IMEI and NVRAM configuration - Kate/Kenzo

[Naphtha]

Backup and Recovery IMEI with QPST Tool

In this tutorial you learn how to make an backup of your IMEI. Qualcomm developes for customers a lot of interesting tools, QPST is the most important suite for us, because with this tools we can: flash , unbrick , restore imei and do other stuff for our phones .

With modding (and bad flashing) every days, a lot of people lost their imei. For prevent bad situation is better if we start to learn how to do an backup of an IMEI and NVRAM configuration, is easy and secure. The most sicure way.

For do this you need :
- Windows 7 (or 8.1) x64 ;
- QPST 2.7 ;
- QDLoader HS-USB drivers pack ;
- ADB & Fastboot ;


STEPS:
- Install drivers and QPST, reboot the PC ;
- Enable developer settings on your device ;
- Enable Debug on your device ;
- Connect the phone on the PC ;
- If don't* popup an "Diasgnostics Port COM" on device manager (usually this port is enabled in the factory rom)
*Open an cmd window and enable it with this command "Diagnostics Port" with this commands:
adb shell
su
setprop sys.usb.config diag
(now Diagnostics port will popup)

- Open QPST configuration and add the port "Ports" ----> "Add new port" ----> Add the name of the port (for example COM5)

- Now click on "Start Clients" ------> "Software Download" -----> "Backup"

- Add an name at this file, select the folder and push "Start" (don't disconnect the phone!!)
- When process is complete, you have an "xqnc" file full working, with your imei and nvram configuration stored.

WITH THIS METHOD YOU CAN RESTORE HOW MUCH TIME YOU WANT THE IMEI.​

 

[Iyiren]

thx,good

 

[KyPbP]

Do I have to wait on?

 

[Naphtha]

Do I have to wait on?

Yep

 

[KyPbP]

Yep

Long? I waited for about 5 minutes

 

[Naphtha]

Long? I waited for about 5 minutes

Yep sometimes is too slow, for restore my imei tomorrow the tool take 10 mins T_T

 

[KyPbP]

Yep sometimes is too slow, for restore my imei tomorrow the tool take 10 mins T_T

I waited for 15 and did not reach 100%. But the file appeared, 996kb.

 

[Naphtha]

Mmm check the drivers

Inviato dal mio kenzo utilizzando Tapatalk

 

[KyPbP]

Mmm check the drivers

Inviato dal mio kenzo utilizzando Tapatalk

Diagnostics 9091D

 

[hadiyalkishan]

Thank you for very useful tutorial..
No any error. And backup process Complete msg received.

my nvram backup file is only 990kb is this ok?

Sent from my A0001 using XDA-Developers mobile app

 

[Naphtha]

Diagnostics 9091D

Try to reinstall it or change the usb port

Inviato dal mio kenzo utilizzando Tapatalk

 

[elcramm]

Apparently (from my failed experience) one of the requirements of this technique is the phone needs to be already rooted.

If that's the case, it'd be great to have it added to the first post.

Thanks

 

[Android2003]

If anyone lost imei, i Can recommend this Tool.
I lost completely imei and efs.
Bring back my phone

http://forum.xda-developers.com/redmi-note-3/how-to/flash-recover-efs-snapdragon-t3406789

 

[paul89rulez]

diagnostic port won't show up with Cm13.

 

[XN Logos]

nice very helpful to protect imei

 

[ayush3051]

The QPST Configuration tool worked as a charm without any errors whatsoever. I have just one query. The XQCN file generated is 989 kB in size. Is that the right size? If not, what size should it be?

 

[Naphtha]

The QPST Configuration tool worked as a charm without any errors whatsoever. I have just one query. The XQCN file generated is 989 kB in size. Is that the right size? If not, what size should it be?

Yes aren't an large file

Inviato dal mio ZUK Z2131 utilizzando Tapatalk

 

[jujusito]

Quit ,adb from command.

 

[mavzer06]

kate qcn backup pleashe

kate qcn backup lınk pleashe

 

[Stelios85GR]

Same problem here.

The backup stops forever at 99%
I also tried to change port but the problem remains.
The Drivers seems to work.

I tried twice and the result was the same, a 1074kb archive.