Repair IMEI lost error of Huawei and ZTE Modem Free

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Yesterday I had written an article about Repair lost IMEI of ZTE modem by ZTE Qualcomm Writer. The DC-unlocker team has made ZTE Qualcomm Writer software, and you might already know that DC-unlocker does not provide anything for free.

Why IMEI lost problem comes?

Some Huawei and ZTE modems come with un-customized firmware and can be unlocked easily with unlock code only. But, some Huawei and ZTE modems comes with customized firmware, and it can not be unlocked without flashing the firmware. Now users who want to use their modem with another network provider sim card then there is no choice for them; he has to flash their modem to unlock the modem to use another network sim.

If you are using the correct firmware for flashing the modem, then the modem will be successfully unlocked using the firmware flashing method. If you are using the corrupt or incompatible firmware or during the firmware flashing process, if the power supply fails, then the modem loses the IMEI. Some time if during firmware update, power fails, then the modem becomes dead forever.

If you are so lucky and you lost your IMEI only, then the modem can be repaired with software only.

How to repair IMEI lost modem free (ZTE or Huawei)?

1. First, download the Free “NV items reader writer software ” from the download link provided at the end of the article.

2. Now extract in a folder using WinRAR software.

3. Now run the NV items reader writer tool.

NV Item reader writer software - main menu
NV Item reader writer software – main menu

4. Now disconnect from the internet and close the software of the ZTE / Huawei modem.

5. Now click on the “Port” drop-down and select the correct COM port of your modem. (To get the correct COM port of your ZTE / Huawei modem, follow this guide.)

6. After selecting the correct COM port, click on the connect menu.

7. Now, your modem will be connected to NV items reader writer software.

8. Now click on the READ button to read the NV memory of the modem.

NV Items reader writer v1.0
NV Items reader-writer v1.0

9. In reading the modem firmware, NV Items reader-writer v1.0 software will take around 5 minutes.

10. Now, it will give you an option for saving on PC.

11. Save the NV backup of your Huawei / ZTE modem in PC with any name.

12. Now, you have successfully taken the backup of the NV Item of your modem.

13. Now, you can flash the modem with any firmware.

14. If you get failed in firmware updating and your modem IMEI is lost, you can again write the firmware using NV Items reader-writer tool.

Note: If PC detects the modem, then only your Huawei or ZTE modems can be repaired with NV Items reader writer software or the above process. If your modem/dongle is not detected by PC, then only through the Jtag device you can repair your ZTE or Huawei modem.

Note II: In NV Item of modem IMEI information is saved. When you write it back to your modem, modem IMEI gets written successfully back to your modem.

Note III: Don’t use any other modem NV Item to repair your modem. In this process, your modem IMEI will be changed, and the network provider can blacklist your IMEI.

So, be careful before processing through the above process.

 

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