LG G4 Root for Marshmallow on V20G. How to do it?

[Lisali]

Hi!

I recently updated my LG G4 from V20A (I think) to V20G. My bootloader is unlocked and I had TWRP/root prior. Now, my TWRP and root seem to be gone. I've tried a number of things, but nothing seems to work. All root solutions seem to involve a pre-rooted kernel V20A. I presume I need V20G to match the software version - is that correct?

Where do I start?

Thank you! :good:

 

[lept_2014]

Hi!

I recently updated my LG G4 from V20A (I think) to V20G. My bootloader is unlocked and I had TWRP/root prior. Now, my TWRP and root seem to be gone. I've tried a number of things, but nothing seems to work. All root solutions seem to involve a pre-rooted kernel V20A. I presume I need V20G to match the software version - is that correct?

Where do I start?

Thank you! :good:

Which version of TWRP and SuperSU have you used?

 

[tmihai20]

I assume you updated to V20G with LGUp or some other tool by flashing a KDZ. You cannot root any MarshMallow version, you must downgrade to a Lollipop version and root it.

 

[lept_2014]

I assume you updated to V20G with LGUp or some other tool by flashing a KDZ. You cannot root any MarshMallow version, you must downgrade to a Lollipop version and root it.

You're wrong. In MarshMallow, if you have bootloader unlock, you can flash a Custom Recovery and then, from this recovery install SuperSU. But you must use some lastest version of SuperSU (it can autopatch BOOT before install).

 

[tmihai20]

You're wrong. In MarshMallow, if you have bootloader unlock, you can flash a Custom Recovery and then, from this recovery install SuperSU. But you must use some lastest version of SuperSU (it can autopatch BOOT before install).

My bad then. I do not know why everybody kept saying that you cannot root a Marshmallow stock Rom. I guess they were talking about all G4s. It makes sense that unlocking the bootloader could allow writing a custom recovery.

Sent from my LG-H815 using Tapatalk

 

[Lisali]

Which version of TWRP and SuperSU have you used?

I used the latest versions I could find of both. Should I not have done that?

You're wrong. In MarshMallow, if you have bootloader unlock, you can flash a Custom Recovery and then, from this recovery install SuperSU. But you must use some lastest version of SuperSU (it can autopatch BOOT before install).

Yes, that's what I understand as well - but there's so much conflicting information out there, and not a clear step-by-step guide on what to do. My bootloader is unlocked. How do I proceed? It seems that flashing TWRP only works by first loading it from fastboot and then flashing it - but I'm not sure. I'd really appreciate some guidance. Thank you! :good:

 

[lept_2014]

I used the latest versions I could find of both. Should I not have done that?



Yes, that's what I understand as well - but there's so much conflicting information out there, and not a clear step-by-step guide on what to do. My bootloader is unlocked. How do I proceed? It seems that flashing TWRP only works by first loading it from fastboot and then flashing it - but I'm not sure. I'd really appreciate some guidance. Thank you! :good:

I've a LG G4 (H815), but I use TWRP Recovery for LG G4 T-Mobile USA (H811) because for some reason, the first don't let me boot with it. Anyway, with the smartphone ON:

• Connect it to Computer
• Copy to internal memory a SuperSU
• Reboot in bootloader/fastboot mode:

adb reboot bootloader

• Boot with TWRP Recovery:

fastboot boot twrp-3.0.2-0-h811.img

• From TWRP Recovery, accept to allow it make changes, and 'install' the SuperSU
• Reboot smatphone normally, and that is all.

 

[gentr]

Hi!

I recently updated my LG G4 from V20A (I think) to V20G. My bootloader is unlocked and I had TWRP/root prior. Now, my TWRP and root seem to be gone. I've tried a number of things, but nothing seems to work. All root solutions seem to involve a pre-rooted kernel V20A. I presume I need V20G to match the software version - is that correct?

Where do I start?

Thank you! :good:

http://www.androidrootguide.com/2015/06/how-to-install-twrp-recovery-and-root-lg-g4-h815.html
I used this guide with latest twrp

 

[Lisali]

I've a LG G4 (H815), but I use TWRP Recovery for LG G4 T-Mobile USA (H811) because for some reason, the first don't let me boot with it. Anyway, with the smartphone ON:

• Connect it to Computer
• Copy to internal memory a SuperSU
• Reboot in bootloader/fastboot mode:

adb reboot bootloader

• Boot with TWRP Recovery:

fastboot boot twrp-3.0.2-0-h811.img

• From TWRP Recovery, accept to allow it make changes, and 'install' the SuperSU
• Reboot smatphone normally, and that is all.

YES! This worked and was so easy. Thank you, THANK YOU! You're a genius! This should be a sticky. It's so much easier than so many other guides out there. Also - weird that one has to use a different version of TWRP for it to work.

A big thank you once again! :good::good::good::good::good:

 

[Latz]

Did the update (...or root) wipe the device or does it do an in-place upgrade? Also, did you do the V20G upgrade from the notification that came up on the phone? Thanks for your help

 

[Lisali]

Did the update (...or root) wipe the device or does it do an in-place upgrade? Also, did you do the V20G upgrade from the notification that came up on the phone? Thanks for your help

Hi!

If you're rooted, the OTA update does not work and won't install. I'm not sure if it works via LG Bridge - I think it won't wipe anything. My device was wiped because of incorrect TWRP installation. Good luck!

 

[Latz]

Hi!

If you're rooted, the OTA update does not work and won't install. I'm not sure if it works via LG Bridge - I think it won't wipe anything. My device was wiped because of incorrect TWRP installation. Good luck!

Cheers Thanks for the reply

 

[shinmegami]

YES! This worked and was so easy. Thank you, THANK YOU! You're a genius! This should be a sticky. It's so much easier than so many other guides out there. Also - weird that one has to use a different version of TWRP for it to work.

A big thank you once again! :good::good::good::good::good:

Hi ! So have you used the twrp for h815 or the twrp for h811 ?

 

[Minto107]

Hi ! So have you used the twrp for h815 or the twrp for h811 ?

He should have used H815 one... Using H811 on H815 can make you a lot of problems like system partition might be on bootloader or so, so it's risky to do anything in recovery not designed for your specific model

Wysłane z mojego LG-H815 przy użyciu Tapatalka

 

[shinmegami]

He should have used H815 one... Using H811 on H815 can make you a lot of problems like system partition might be on bootloader or so, so it's risky to do anything in recovery not designed for your specific model

Wysłane z mojego LG-H815 przy użyciu Tapatalka

Ok thank you.
Have a nice day.

 

[BUGATTI118]

I have a H815P version, so what is the best way to root? I'm in Marshmallow.

Enviado desde mi LG-H815 mediante Tapatalk

 

[RuedasLocas]

Hello all!

I'm having problems with Windows 10 and all the programs to deal with my P880... Yesterday I tried
to unlock the bootloader on my new G4 H515 but didn't worked.

The original software was verizon (at least it looked like), I downgraded to lollipop (V10b and V10d, both euro open) but, using the LG official method to unlock the bootloader didn't worked.
In adb the first command didn't do nothing, the second one reboot the phone but only shows a guide and how to reboot the phone, when I tried to go for the third one nothing happens.

The device is detected only for a few seconds, even by the original LGMobile Support Tool, after force the detection by disconnecting and connecting the cable the phone reboot in software upgrade
and its not detected anymore...

Anyone have the same problems and/or any solution?

Install Win7 is not an option, processor is not supported by Win7.



Thank you

 

[RuedasLocas]

Hello all!

I'm having problems with Windows 10 and all the programs to deal with my P880... Yesterday I tried
to unlock the bootloader on my new G4 H515 but didn't worked.

The original software was verizon (at least it looked like), I downgraded to lollipop (V10b and V10d, both euro open) but, using the LG official method to unlock the bootloader didn't worked.
In adb the first command didn't do nothing, the second one reboot the phone but only shows a guide and how to reboot the phone, when I tried to go for the third one nothing happens.

The device is detected only for a few seconds, even by the original LGMobile Support Tool, after force the detection by disconnecting and connecting the cable the phone reboot in software upgrade
and its not detected anymore...

Anyone have the same problems and/or any solution?

Install Win7 is not an option, processor is not supported by Win7.



Thank you

Solved!
Everytime we need to reboot the bootloader (or give another command in cmd) we need to uninstal the standard "kedacom usb device" driver and install manually the LG adb drivers.

BTW, was UNLOCKED running V20G-EUR-XX

 

[dinko1]

I have an LG G4 815 which never rooted and I am not sure about bootloader (probably locked). I am on latest MM v20g. Is there anyway to root my phone so I can install apps require root? Without of course wiping my data?

 

[El Presidente81]

I have an LG G4 815 which never rooted and I am not sure about bootloader (probably locked). I am on latest MM v20g. Is there anyway to root my phone so I can install apps require root? Without of course wiping my data?

Do you have an unlocked bootloader?

When you reboot do you see any white writing on the top left hand corner of the screen?