Can I relock bootloader on LG G4 H815 - G4 Q&A, Help & Troubleshooting

If I unlocked my bootloader and decided to relock it to get android 7.0 would it be possible at all ?

Well ,there is not official way to relock bootloader yet,but this dude claims otherwise....

redentor666 said:
Well ,there is not official way to relock bootloader yet,but this dude claims otherwise....
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I believe it's the same as my H811. Here it is.

Related

Flashing, rooting etc on H815 twn

Is it possible to flash custom ROMS to this variant that has yet to have an unlock bootloader? If so, is it through flashify? but what about wiping the dalvik cache?
noob here lol
really wish LG would provide the damn unlock key. ugh
lg provide offical bootloader unlock
angryolk said:
lg provide offical bootloader unlock
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yeah, for H815 European one only. Other variants of the H815 such as SEA or TWN, no released as of yet.

LG Q's

Hi, im looking at getting the lg g4.
however, my question is does the lg have a similar software to the samsung such as knox which is tripped if you flash a custom kernel etc
Driver15 said:
Hi, im looking at getting the lg g4.
however, my question is does the lg have a similar software to the samsung such as knox which is tripped if you flash a custom kernel etc
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no but you need the int version to be able to unlock bootloader...if not nothing custom!!!
Nope, I guess
If you unlock the bootloader with lg official tool (makes void the warranty), you can flash everything is available
But, unlocked bootloader screen will be displayed at every boot. So, same bad knox issue for warranty.
Noker7 said:
Nope, I guess
If you unlock the bootloader with lg official tool (makes void the warranty), you can flash everything is available
But, unlocked bootloader screen will be displayed at every boot. So, same bad knox issue for warranty.
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thanks for the reply, Is thier no way to revert the bootloader back to stock? lol
pikachukaki said:
no but you need the int version to be able to unlock bootloader...if not nothing custom!!!
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im assuming you mean the international version?
Driver15 said:
thanks for the reply, Is thier no way to revert the bootloader back to stock? lol
im assuming you mean the international version?
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No and yes and you will lose your warranty...
Sent from my LG-H815 using Tapatalk

Any way to lock my bootloader again (H815 eu)?

I unlocked my bootloader to try CM13, but I'm not happy. Now I can't find any guides or pages that explain how I can revert my phone back to original state (bootloader locked)? Can't sell this phone when the device unlocked text is on the boot screen
Plese don't respond if you just tell me to google or search, because I did that...
Cloudstrife said:
I unlocked my bootloader to try CM13, but I'm not happy. Now I can't find any guides or pages that explain how I can revert my phone back to original state (bootloader locked)? Can't sell this phone when the device unlocked text is on the boot screen
Plese don't respond if you just tell me to google or search, because I did that...
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There is no way to lock to the bootloader again. Once unlocked it's unlocked for good.
Sent from my G4 using XDA Labs
IIIIkoolaidIIII said:
There is no way to lock to the bootloader again. Once unlocked it's unlocked for good.
Sent from my G4 using XDA Labs
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As above.... its been well documented both by LG on their page and on here... its a one way trip... In fact, at each stage of the Unlock process doesnt LG warn you its irreversible
NightOrchid said:
As above.... its been well documented both by LG on their page and on here... its a one way trip... In fact, at each stage of the Unlock process doesnt LG warn you its irreversible
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Yep the point it out throughout the process.
Sent from my G4 using XDA Labs
You can easily sell if the bootloader is unlocked btw, I've sold loads of devices with an unlocked bootloader.
El Presidente81 said:
You can easily sell if the bootloader is unlocked btw, I've sold loads of devices with an unlocked bootloader.
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Does and Unlocked Bootloader just affect DRM content and Can an Unlocked Bootloader take an OTA or work through LG bridge / LGUP?
I must admit.. I couldnt do it
NightOrchid said:
Does and Unlocked Bootloader just affect DRM content and Can an Unlocked Bootloader take an OTA or work through LG bridge / LGUP?
I must admit.. I couldnt do it
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Yep, DRM content is fine, I've not encountered anything that doesn't work.
I returned to stock with LGUP and took OTAs on my previous device when I did the warranty return and didn't have any issues.
Cloudstrife said:
I unlocked my bootloader to try CM13, but I'm not happy. Now I can't find any guides or pages that explain how I can revert my phone back to original state (bootloader locked)? Can't sell this phone when the device unlocked text is on the boot screen
Plese don't respond if you just tell me to google or search, because I did that...
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apparently it can... on h811.. not sure about your variant.
read here ... and if you follow procedure can you make video to show it really works.. ?
http://forum.xda-developers.com/tmobile-g4/help/relock-bootloader-h811-t3372970

bootloader unlock without LG unlock file

I have g4 model that lg wont unlock (h815L)
is there any way to unlock the bootloader without the file that lg gives you?
I just want to flash the cm13 rom...(if there is any way without unlock the booloader?i doute)
thanks
You can find instructions of this page:
http://www.droidviews.com/install-marshmallow-update-20i-on-t-mobile-lg-g4-h811/
Shneor
shneor said:
You can find instructions of this page:
http://www.droidviews.com/install-marshmallow-update-20i-on-t-mobile-lg-g4-h811/
Shneor
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thank you, but i cant boot to twrp without unlocking the bootloader...
and also this guide is for h811 and mine is h815L
LidorSho said:
thank you, but i cant boot to twrp without unlocking the bootloader...
and also this guide is for h811 and mine is h815L
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seems like you may have the G4 that cant be unlocked.. so thers no way.... you could root and install xposed but on LP only... with locked bootloader.. only a few h815 from some countries can be unlocked..

Bootloder unlock

How can I bootloder unlock my lg g4 "TWN"
my phone does not support bootloder unlock
so what can I do?
You can wait or do some research and write a bootloader unlock tool for everyone
...we are all waiting :/
You would probably be waiting indefinitely. It does not look like there will ever be a bootloader unlock for the G4's which are locked.
Amitakd said:
How can I bootloder unlock my lg g4 "TWN"
my phone does not support bootloder unlock
so what can I do?
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you can root yours if it is dual sim model . Forget unlocked bootloader .
My H818P is rooted with Lollipop.
But to Be honest, I'd rather have an unlocked bootloader :/
No root on MM and up is a pain.
rajkatiyar07 said:
you can root yours if it is dual sim model . Forget unlocked bootloader .
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My phn single sim model it's h815 TWN model
Amitakd said:
My phn single sim model it's h815 TWN model
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Not sure but i think not possible, check General and development section please.
You can still root...I have h815 twn model, running 5.1 rooted...if you are on MM you need to use LGUP tool to downgrade to LP and then flash the rooted fw with flashfire...there are YouTube vids on it, just search

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