Fixing “this phone is permanently locked…” on LG V60



There are several issues that might arise after cross-flashing your LG device. One of them is this phone is permanently locked and can not be unlocked like on the LG V60. This tends to happen when cross-flashing tampers with the EFS partition (like when attempting a network unlock) . Some cross-flashes or downgrades might even result in the device getting stuck at EDL (qhsusb_bulk or qualcomm hs-usb qdloader 9008)

In this guide, I’ll be using the LG V60 T-mobile (LMV600TM) as an example. You’ll have to get relevant files for your model if different.

Backup First

First off, you need to backup your device’s current firmware (at least modem_a, modem_b, FSC, FSG, modemst1 & modemst2). A backup is always a good idea regardless of the condition of the device because you never know what part of your backup might come in handy.

If you can’t get a box or dongle which supports your model then consider using QFIL to dump each partition.

Flash A Dump From A Working Phone

For the LG V60, download this firmware dump and this firehose then flash using QFIL. If you encounter Sahara Fail error then try these fixes.

After flashing, flash these LG V60 fsg, fsc, modem and modemst files to their respective partition using this QFIL guide.

IMPL 0

At this point, you should be able to write IMEI via the LG hidden menu, Navigate to SVC Menu > MID Info and you can re-write your IMEI and Serial Number (CSN). You can also write your NT Code if you have an NT Code warning on boot.



17 thoughts on “Fixing “this phone is permanently locked…” on LG V60”

  1. Hello, Enigma.. I tried your solution and it boots fine. but some problems occured.

    1) at the first screen after boot, it says that I have to unlock network by “unlock app”, but at the Mobile Network tap, it says “this phone is permanently unlocked” and nothing happens next!!

    2) I lost my own S/N number and changed to different number. But IMEI not changed.

    3) when I enter “MID info”, IMPL is 1 and never find “gen” button to correct such items in MID info tap…

    and Here’s my condition.
    I bought LMV600AM(AT&T) from eBay, and it was permanently network locked. So, I tried solution and only mdm1m9kefs1, mdm1m9kefs2, mdm1m9kefs3 files are original items of V600AM.

    Could please help me? I already spent three days to try to solve it…

      1. First of all thank you for your hard work, my phone is now up and running. Everything is working fine except the fingerprint, I’ve been trying different things to fix it but nothing is working, Though I have narrowed the problem down, whenever I flash modem_a and modem_b from above files fingerprint stops recognizing, no error nothing just sensor lights up, but when I flash any other modem_a/modem_b, fingerprint works but I get Network lock error. Things that I tried so far, tried replacing files(9 files) that had fingerprint in their name, in image folder of modem_a/b with ultraiso but fingerprint print still not works after flashing. I tried to remove imei related files from my original modem_a/b, then flashed, fingerprint works but same network lock error. Any help would be much appreciated…

  2. Am kinda having the same issue on my V50 ThinQ (LG V500N SKT_KR) is there anyway you can please provide same tutorial as provided above for the V50 ?

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