[LG V30 Guides, News, & Discussion] ChazzMatt:
That's not true with custom LGUP file we're taking about which ignores restrictions.

The custom V20 LGUP file completely converted one V20 variant to another, including partitions, etc. Same the custom LGUP file for G5. You need to read up on what we're talking about.

It's back in the thread. You can't just jump in. ;)

Read this post, and follow the dev thread links in that post.

https://xdaforums.com/showthread.php?p=74689131

Since then, this has been discussed in depth, but you need bootloader unlocked US998 to work with bootloader unlocked H932. That's what everyone is waiting for.

You also need a dev or someone knowledgeable to create a custom LGUP file for the V30. The one for G5 or V20 won't work. All those links tell you more.

This

idea also generated interest in the LG G6 forums.

, as people here go back and forth.

[BOUNTY & REWARD] ROOT LG G6 T-Mobile Reward

January 2, 2017

Of course it works. I said it would. ;)

In fact, one of the first questions I answered -- BACK IN NOVEMBER -- when proposing this method was

"why didn't the LG G6 people try this?"

< You can read my answer there (also November 18, 2017), but seems now they are finally trying it... specifically they are trying point #3 of my answer.

Also, here's another post I'm copying in full below, which was one of the first times where I suggested this method:

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NOVEMBER 18, 2017

https://xdaforums.com/showpost.php?p=74557506&postcount=76

The patched LGUP could be of use, like it was with the LG V20 after Dirty Santa was patched.

[GUIDE][UNBRICK] Patch LGUP to unlock features & unbrick V20 (Variant mismatch fix)

https://xdaforums.com/v20/how-to/guide-patch-lgup-to-unlock-features-t3652222

Using a specially coded LGUP.exe, it allows you to flash a version of LG firmware -- like for another model variant -- you shouldn't be able to flash.

Also worked on an LG G5:

This trick became VERY useful when Dirty Santa bootloader exploit was patched. With the LG V20 "international" variant,

you flashed the H9990 another carrier's variant OLDER firmware version

--which still allowed the exploit to run. Yes, you temporarily lost all carrier signal functionally, but you could still use Wi-Fi and USB sideload.

You basically temporarily converted the "international" V20 H990 to another variant model (like Freedom POP H915). You then ran the exploit to unlock the bootloader, install TWRP. (Running the bootloader exploit is NOT the point here, keep reading. I know Dirty Santa won't work. It's the LGUP firmware flashing METHOD that's the point.)

THEN, after installing TWRP, you flashed BACK to your regular ROM -- except for recovery where you still had TWRP.

Carrier signal functionally restored, AND you now had bootloader unlocked and TWRP installed. BOOM.

OK, HOW DOES THIS APPLY TO THE T-MOBILE LG V30?

Well, T-mobile is easily unlocked, so you don't need an exploit to unlock the bootloader. But seems like you could use the patched LGUP to flash the firmware for the open market version US998, which has the functionality you need? Then, flash T-Mobile firmware back on, once you get TWRP installed.

I'm not a dev, but that seems like the path to take or some similar route.

The question is, would flashing US998 KDZ over bootloader unlocked T-Mobile LG V30 then give you ADB flash commands?

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Sent from my official carrier unlocked LG V30+ US998