yashsingh1/xdaforums huggingface dataset:
[LG V40 Guides, News, & Discussion] ilya980:
Thanks. I appreciate your help. It is not a total waste of time. At least I learned how to enable the hidden menu and got a great advice on how to run LGUP. There is no specific LG K40 thread here. I also picked up a tool that enables magisk (though only until reboot) on my phone from LG K10 thread.
[LG V40 Guides, News, & Discussion] anhdeptrai97th:
thanks
[LG V40 Guides, News, & Discussion] nmp5:
Hi guys

I'm currently on "V405EBW30b_00_OPEN_EU_DS_OP_0806.kdz"

and I'm trying to install "V405EBW30e_00_OPEN_EU_DS_OP_0903.kdz"

On the PC, I installed:

LGMobileDriver_WHQL_Ver_4.5.0.exe

LGUP_Lab_Frame_Ver_1_16_0_3.msi

LGUP_Common_DLL_Ver_1_0_40_2.msi

Copied "UI_Config.lgl" to "C:\Program Files (x86)\LG Electronics\LGUP\Common\"

Ran LGUP,

selected "UPGRADE",

selected the "kdz" file

Put the phone on Download Mode

Pressed "Start"

And I get this error:

Error: 0x6004, CrossDL

judypn_lao_eea>@judypn_la [can't see the rest]

Any ideas?
[LG V40 Guides, News, & Discussion] degarb:
My simple goal: to enable band 71 on a carrier unlocked att branded v40.

Status: 3 or more days in, reading and trying everything (I am amazed at how many how to pages have cmd typos or leave out key information that make their instructions not work), but nothing but dead ends, for the most part... Of all the threads on the web, this one looks the most promising. I guess, I want to flash the att firmware to the open firmware, which I assume is called cross flashing. I have no interest in trying to flash to another att firmware, unless it rooted, or will allow me to then cross flash to the open firmware with band 71 enabled.... I admit that I am now trying to tune out the deluge of other webpages with bad advice. But doing this is very hard.

I carefully followed the instruction of the OP, read the thread, tried the command line method. Nothing is working. I tried every kdz file known to man. allow oem unlocking and debugging enabled, the correct port aggress with the device manager, apparently all driver working.

The OP instructions are still throwing up the crossd error. Infact, on load, it is complaining it can't load his dll, despite lgup bein his version, his link msi.

Another thing I noticed is that my LV405ua (4 phones) phones, branded att, carrier unlocked, might not even have a bootloader that can be unlocked. The service codes didn't work. I could get adb to tell me the device id, so the driver there is working. but the commandline fastboot doesn't work. Holding power and vol down for 12 seconds only takes a screenshot and reboots the phone back into android. I immediately released and repeatedly hit the up button, but it keeps booting into android. Another person, said his att phone had no bootloader. So, I am wondering if that is at root of my problems: crossd error, can't load new file error, most dialer service codes don't work, qfil can't see the phone, fastboot instructions don't work, the rooting techniques on web all fail, adb works, but fastboot.exe doesn't.

It is a nice phone, but what is the point of an unlocked phone if you don't have band 71. This cripples a third of the carriers.
[LG V40 Guides, News, & Discussion] venhow:
Awesome man.

Change from LGT to KOR successfully....
[LG V40 Guides, News, & Discussion] NW13:
My apologies if someone has already answered this particular question, but has anyone (successfully) tried to cross-flash a LG V40 U.S. Unlocked (LM-405QA/V405QA7) to the firmware for a LG V40 for AT&T (LM-404UA/V405UA) OR LG V40 for South Korea (LM-V409N/V409N) or even the LG V40 for Global/International Markets (LM-V405EBW/V405EBW OR LMV-405EB/LMV405EB) to update to Android 10 since the LG V40 U.S. Unlocked (LM-405QA/V405QA7) is current stuck at Android 9 (Android Pie)?
[LG V40 Guides, News, & Discussion] AamirXtreme:
Hi, I have v40ua Verizon. I unlocked it following this thread

[GUIDE] Unlock your LG V40 via 9008 mode (Every Variant except T-Mobile)

This Guide will explain how to unlock your LG V40 (Every variant except T-Mobile) Unlock Prerequisites: Make sure you have "Enable OEM Unlock" enabled in developer options, along with adb debugging. Very important. You'll be stuck with the red...

xdaforums.com

Now my v40 is Rooted , TWRP and Hovac 3.8 Rom Installed. The issue is I lost download mode. When I try to enter download mode by holding vol +, it shows entering download mode briefly but then starts normally. Flashing original laf doesn't change its behavior while Flashing Lgup compatible flash provided in original post gives "your device has failed a routine safety check and will not boot" error while trying to enter download mode. Originally Phone was on Android 10 30c.

Edit: I have V35 Engineering Bootloader in slot a for fastboot.
[LG V40 Guides, News, & Discussion] reachforthesky:
Deleted
[LG V40 Guides, News, & Discussion] johnmaster:
Greetings. I would like to know how to restore the phone's dumped files. also know what the BOARD DL, PHONESETTING, FAC UPGRADE, PARTITION DL AND CHIPERASE options are for? Thank you
[LG V40 Guides, News, & Discussion] alaboulaabi:
please i Need help my y device lg k41s /lm410emw20b