tab, go to the ESN / MEID / IMEI Repair section and Read your phone's current IMEI.Ĩ. I recommend you backup your NV items again using the NV Backup / Restore tab.ħ. In NV Tools, select the "LGE AndroidNet For Diagnostics Port" and press Connect.Īt this point, confirm that the connection was successful and that sensible diagnostic information has been pulled from your phone.Ħ. Open the EFS Professional Suite launcher and select Qualcomm NV Toolsĥ. Connect your phone to your computer and select USB Tethering as the connection mode (again, LG ROMs only) and let the driver installation finishĪt this point, you can open Windows' Device Manager and check that two new serial COM ports have been installed: an "LGE AndroidNet For Diagnostics Port" and an "LGE AndroidNet USB Serial Port"Ĥ. Install the latest LGUnitedMobileDriver (I used version 3.14.1 WHQL)Ģ.
These partitions include the three M9KEFS partitions, the MODEM partition, and the MODEMST1 and MODEMST2 partitions.ġ. NOTE2: Even if you suspect your EFS/NV has been corrupted, now is the time to make a backup of all of the relevant partitions for your phone. NOTE1: I have also seen advice that your SIM card should be REMOVED prior to performing the procedure.
#How to use qpst software download how to
This step was necessary for me because I did not find any instructions on how to enable the Qualcomm platform diagnostic mode / port on Cyanogenmod ROMs Ensure that you are on one of the LG based ROMs (both V20J and the KK ROM by Paulicat worked for me)
Even stranger is the fact that despite having a "0" IMEI, I was always able to make/receive calls and use data on both devices.Ġ. I say this because my second device was never flashed with a custom ROM (only rooted) and remained on stock V20J, yet my IMEI was lost at some random point in time. Restore IMEI after EFS/NV Corruption (0 IMEI, no EFS backup, etc.) - AT&T Optimus G Q&A, Help & Troubleshooting Preface: What the **** is wrong with this device? I've had two phones in a row lose IMEI information for no apparent reason.
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