[Superseded] Crossflash US Unlocked Pie to your Bootloader Unlocked V40

[Shycat]

Remove encryption TWRP

Hi, Xsave, I'm trying to remove encryption in TWRP with your method. Downloaded the conversion tool and all (dont need thou to flash Pie, since Vlaad already did it for me), mounting vendor only after formating data in TWRP, pulling my fstab.judypn and editing it. But I don't find data/mountpoint anywhere in it... and no ''forceencrypt'' also...
So I'm kinda confuse here...

 

[gastondefer]

Has anyone found a way to sim unlock Sprint v40 yet using crossflahing like on the G7?

 

[Ainz_Ooal_Gown]

Has anyone found a way to sim unlock Sprint v40 yet using crossflahing like on the G7?

Not possible

 

[jimmyStoo]

Hi Xsavi,

I sent you a PM, but not sure if you got it, as my sent folder does not have the message listed there, so I sent one again, but sent folder still shows no message. I didn't want to send anymore in case you are actually getting them lol.

 

[Ainz_Ooal_Gown]

Hi Xsavi,

I sent you a PM, but not sure if you got it, as my sent folder does not have the message listed there, so I sent one again, but sent folder still shows no message. I didn't want to send anymore in case you are actually getting them lol.

You have to save a copy....

 

[jimmyStoo]

Ohh shoot. I didn't even see that option at bottom as i was sending it through mobile. Thanks. Sorry Xsavi for duplicates :silly:

 

[aaya888]

Korean version root pie

 

[theandrewgordon]

so confirming... I bought a v30 sprint and converted it to unlocked rom. I can do the same here just wont sim unlock?

 

[awireless]

so confirming... I bought a v30 sprint and converted it to unlocked rom. I can do the same here just wont sim unlock?

Yes sir

 

[ragingblow]

Can you please tell us how did you achieved this ?

Korean version root pie

I have an V409N U+ it means i can do this too ?
How did you managed to unlock the bootloader ?

 

[luislasonbra]

help stuck on LG V40 ThinQ logo

Hello, I have done all the steps but I see that my LG V405UA (SPRINT), is lasting a lot on the black screen of LG V40Thinq, my PC recognizes it but it does not happen from there.

what could I be doing wrong

 

[sptw]

Hi there,
I am stuck on fastboot mode. LG V40 korea version with pie. I tried to unlock the bootloader using 9008 trick and endup with fastboot only. I installed V35 Engineering bootloader but no unlock bootloader. Will this work on this case? In positive case, can i revert to original korea firmware .kdz using lgup tool?
Thanks in advance.

 

[AsItLies]

Hi there,
I am stuck on fastboot mode. LG V40 korea version with pie. I tried to unlock the bootloader using 9008 trick and endup with fastboot only. I installed V35 Engineering bootloader but no unlock bootloader. Will this work on this case? In positive case, can i revert to original korea firmware .kdz using lgup tool?
Thanks in advance.

to unlock the bootloader, be sure to enable 'developer' mode (in settings), and then select 'allow oem unlock'.

if your pc see's your phone properly, with 'fastboot devices', then the command is simply 'fastboot oem unlock'.

yes, you can revert with lgup with the kdz, if that's what u chose to do.

cheers

 

[sptw]

to unlock the bootloader, be sure to enable 'developer' mode (in settings), and then select 'allow oem unlock'.

if your pc see's your phone properly, with 'fastboot devices', then the command is simply 'fastboot oem unlock'.

yes, you can revert with lgup with the kdz, if that's what u chose to do.

cheers

Hi AsltLies,

Thanks for your fast reply.
Unfortunately pc does not see my phone properly. Not even ADB. I do not know what has happened. After V35 Engineering bootloader , phone disconnected and i cant get the pc or adb to see the devices. I tried all of the stuffs, like a several of usb drivers e some adb fastboot drives. Change usb port ( usb 2.0, usb 3.0 ). I tried different cables. No way. Pc can not see the device.
I can only reach fastboot on smartphone device.
I was just imagining if the trick here from Mr. Xsavi can do with V35 Engineering bootloader locked.

Maybe i am doing something wrong here, but i can not be able to make it using adb on linux ( Kubuntu ). Linux dont see the device too.

Update: Windows 10 can see the smartphone on device manager, but i am not able to find a driver to update it. Device manager only see as " Android" and a yellow exclamation asking for a driver. I already tried qualcom drive, usb drive, and adb installation ( minimal version 1.4.3). No way. None works. Only to remember: it was working before with generic usb driver from lg, qualcom drive, and adb was able to see the device. Only after the V35 Engineering bootloader operation, the device manager on win10 dont recognize the device anymore.

 

[AsItLies]

Hi AsltLies,

Thanks for your fast reply.
Unfortunately pc does not see my phone properly. Not even ADB. I do not know what has happened. After V35 Engineering bootloader , phone disconnected and i cant get the pc or adb to see the devices. I tried all of the stuffs, like a several of usb drivers e some adb fastboot drives. Change usb port ( usb 2.0, usb 3.0 ). I tried different cables. No way. Pc can not see the device.
I can only reach fastboot on smartphone device.
I was just imagining if the trick here from Mr. Xsavi can do with V35 Engineering bootloader locked.

Maybe i am doing something wrong here, but i can not be able to make it using adb on linux ( Kubuntu ). Linux dont see the device too.

Update: Windows 10 can see the smartphone on device manager, but i am not able to find a driver to update it. Device manager only see as " Android" and a yellow exclamation asking for a driver. I already tried qualcom drive, usb drive, and adb installation ( minimal version 1.4.3). No way. None works. Only to remember: it was working before with generic usb driver from lg, qualcom drive, and adb was able to see the device. Only after the V35 Engineering bootloader operation, the device manager on win10 dont recognize the device anymore.

It's a windows driver issue. When you see that exclamation mark that means it doesn't know what to do with the device. So right click on that and select update driver, choose on your device and it should give you a list of adb drivers to choose from, there's a pretty generic one (can't remember the name), choose that and after the update the exclamation mark should be gone and phone will be seen.

 

[sptw]

It's a windows driver issue. When you see that exclamation mark that means it doesn't know what to do with the device. So right click on that and select update driver, choose on your device and it should give you a list of adb drivers to choose from, there's a pretty generic one (can't remember the name), choose that and after the update the exclamation mark should be gone and phone will be seen.

Yep. Shure it is. Really exists about 4 or 5 android adb drivers. I will try one by one and see if can solve the problem. As soon as i have a result i will post here.

Thanks a lot.

Update:. Unfortunately even using all adb android drives on device manager ( win 10), the pc do not recognize the smartphone.

 

[sptw]

Finally I got it to work again. I manage to enter in the edl mode, and within there i upload de pieimagestock. Qfill upload it like a charme, because in edl mode pc could see the smartphone using qualcom driver.
After the upload pie image bootloader instead v35 Engineering bootaloader, the both slots ( a and b ) became unbootable. So i managed to enter in download mode and upload the entire pie kdz image. Works like a charm and my lg V40 is on the road again.
Off course the bootloader is still blocked. Now i will try to understand what has happened when i was using qfill to upload v35 Engineering bootloader image. I cant remember but i am almost shure i was using usb 3.0 port, instead 2.0, and i feel it is culprit.

Thanks.