Develop Bugs

Can I unlock my Bootloader? G4 H815 O2 branded UK

Hey everyone, this is my first LG device, and definitely not my last. I love this phone but I think its time to root now.
I understand LG have an official bootloader unlock for the H815 model, but mine is also carrier branded to O2, I read somewhere that its only the factory unlocked models that support this method?
Cheers

Jonnyn93 said:
Hey everyone, this is my first LG device, and definitely not my last. I love this phone but I think its time to root now.
I understand LG have an official bootloader unlock for the H815 model, but mine is also carrier branded to O2, I read somewhere that its only the factory unlocked models that support this method?
Cheers
Click to expand...
Click to collapse
You can always just go to the LG site and try to get the files you need and see. If you attempt to put in info for a G4 that their bootload unlock does not support it will just give you a popup error and will not allow you to download anything.

What is the best way to root G4, whilst keeping it "friendly" for warranty claims?!?

What is the best way to root G4, whilst keeping it "friendly" for warranty claims?!?
Hi, forgive me if this thread isn't in the appropriate section.
I have a bit of rooting experience, haven't done much in a few years though, (knowing that there are now several ways to root devices), and have just picked up the G4.
Now I'd like to root the G4, but keep the stock rom, (6.0) and mainly will be just running xposed to edit and muck around with LG's ugly skin. I'd still like to be able to receive OTA updates, (even if the OTA update may remove my root,) as well as hopefully still be fine if I needed to return the device under warren.
I've been reading around and apparently you must unlock the bootloader in order to root for Marshmallow? If i were to still do this, could I keep the stock recovery at least, or if not, would I be able to easily revert to stock with a stock recovery and relock the bootloader?
Apologies for my ignorance, just trying to figure out if I should really be rooting or just chuck on Nova launcher and be happy with LG's offerings. Cheers

Keep it on a stock rom and if yoi have a carrier varient then try to not change the boot logo lol idk just a guess.

Jared_Anderson said:
Hi, forgive me if this thread isn't in the appropriate section.
I have a bit of rooting experience, haven't done much in a few years though, (knowing that there are now several ways to root devices), and have just picked up the G4.
Now I'd like to root the G4, but keep the stock rom, (6.0) and mainly will be just running xposed to edit and muck around with LG's ugly skin. I'd still like to be able to receive OTA updates, (even if the OTA update may remove my root,) as well as hopefully still be fine if I needed to return the device under warren.
I've been reading around and apparently you must unlock the bootloader in order to root for Marshmallow? If i were to still do this, could I keep the stock recovery at least, or if not, would I be able to easily revert to stock with a stock recovery and relock the bootloader?
Apologies for my ignorance, just trying to figure out if I should really be rooting or just chuck on Nova launcher and be happy with LG's offerings. Cheers
Click to expand...
Click to collapse
Yes to reflashing stock rom
Yes to relocking the bootloader
So you are clear to make whatever modifications you want, you can always revert safely.

Vseprz said:
Yes to reflashing stock rom
Yes to relocking the bootloader
So you are clear to make whatever modifications you want, you can always revert safely.
Click to expand...
Click to collapse
Once your bootloader is unlocked, you cannot relock it. Your device will always show a message saying "Bootloader unlocked" after turned on. Warranty is likely to be declined then. BTW: You have to get your unlock.bin file from lg, agreeing to void your warranty. So, even if you smash your screen and they cannot see the message, lg knows it is out of warranty.

pen² said:
Once your bootloader is unlocked, you cannot relock it. Your device will always show a message saying "Bootloader unlocked" after turned on. Warranty is likely to be declined then. BTW: You have to get your unlock.bin file from lg, agreeing to void your warranty. So, even if you smash your screen and they cannot see the message, lg knows it is out of warranty.
Click to expand...
Click to collapse
Since when do you have to get the unlock.bin? We unlock from fastboot. Have you confirmed by trying to relock from fastboot? I read otherwise from another thread.
Furthermore, a quick search around indicates people who have unlocked and rooted have had their warranty honored despite software changes.

Vseprz said:
Since when do you have to get the unlock.bin? We unlock from fastboot. Have you confirmed by trying to relock from fastboot? I read otherwise from another thread.
Furthermore, a quick search around indicates people who have unlocked and rooted have had their warranty honored despite software changes.
Click to expand...
Click to collapse
Unlock from fastboot is only possible after flashing said unlock.bin file, which can only be obtained by lg and is unique for each device. Furthermore, I had an unlocked, bootlooping h815 and lg refused warranty to me (in Germany). Got my phone replaced by my vendor on eu law which only applies if the defect strikes in the first six months.
So, while some people are lucky to have their phone repaired despite an unlocked bootloader, I'm really happy for them, but lg is not bound to repair it on warranty

pen² said:
Unlock from fastboot is only possible after flashing said unlock.bin file, which can only be obtained by lg and is unique for each device. Furthermore, I had an unlocked, bootlooping h815 and lg refused warranty to me (in Germany). Got my phone replaced by my vendor on eu law which only applies if the defect strikes in the first six months.
So, while some people are lucky to have their phone repaired despite an unlocked bootloader, I'm really happy for them, but lg is not bound to repair it on warranty
Click to expand...
Click to collapse
Ah I see. You have a h815. I have a h811. Our process differs there.

Hmmm, thanks for the info guys. Its not from a carrier, i bought it outright. Seems like i might just have to keep it stock, its not too bad as is, guess ill just have to live with it. Thanks for the help though.

Jared_Anderson said:
Hmmm, thanks for the info guys. Its not from a carrier, i bought it outright. Seems like i might just have to keep it stock, its not too bad as is, guess ill just have to live with it. Thanks for the help though.
Click to expand...
Click to collapse
At least you can root with locked bootloader

Not under marshmallow

You can do none of things you listed keeping it stock. First of all google change policy and in marshmallow you need to flash modified boot.img in order to flash custom recovery and/or to root it. As you know the bootloader has to be unlocked but there is no way to relock it. So sorry, but impossible.

People need to understand a simple thing.
You either mod your device and lose warranty or you keep it stock.
It's that simple. People worried about warranties and ota updates are on the wrong site.

Rooting H815 V20c-SEA-XX?

After searching all day, I can't find a complete answer, can I root my H815 SEA model?
1. it is not a European model, so the boot-loader is unlockable, already checked on lg site.
2. I've been looking for a rooted system image but there are only for older lollipop versions, can anyone share updated rooted system for v20c?

Have you unlocked the bootloader ?
Because just now i tried the same thing for my h815 SEA version and it cannot be unlocked

sorry, i am missing the huge NOT word in the first sentence, the bootloader is not unlockable unfortunately

Are you sure? This post is very old and says that you can unlock your bootloader
http://forum.xda-developers.com/g4/general/psa-official-lg-bootloader-unlock-815-t3233391

im sure

I have the same problem here... :crying:crying:

any progress on rooting this variant/version?? I was disappointed to find my phone is bootloader locked...

G4 how to root it? (dont understand whats with bootloader and so)

Hello there, i got an LG G4 h815 few days ago, when ever i get new device first thing i do is root it, and it was always very easy for me.
with this g4 i got problems, try to go to LG website and unlock bootloader, it say i cant cause my device is h815 taiwan, so i read more in google and understand official unlock is only for the euro devices.
so i google more try to understand how can i unlock it unofficially, and found nothing, as well as try to google for a way to root it with out unlock bootloader, and also coulnt find.
im sure im missing something, cause i dont think its possible that there is no root for an old device, any help on how to root my phone?
thanks a head.

Lots of people here have H815 TWN...please can some one make a specific thread for rooting or installing xposed on Taiwanese H815 without the risking of bricking or bootlooping the device...meaning successful rooting ...
Sent from my LG-H815 using XDA-Developers mobile app

tiptip13 said:
Hello there, i got an LG G4 h815 few days ago, when ever i get new device first thing i do is root it, and it was always very easy for me.
with this g4 i got problems, try to go to LG website and unlock bootloader, it say i cant cause my device is h815 taiwan, so i read more in google and understand official unlock is only for the euro devices.
so i google more try to understand how can i unlock it unofficially, and found nothing, as well as try to google for a way to root it with out unlock bootloader, and also coulnt find.
im sure im missing something, cause i dont think its possible that there is no root for an old device, any help on how to root my phone?
thanks a head.
Click to expand...
Click to collapse
unfortunatelly you cant unlocked till today.. maybe later if someone can do it... but you can add root to locked bootloader... i have not tried this method.. i tried similar to h811 tmobile.. but its the same procedure.. mine is unlockacle but i dont want to with the bootloop issue... unlocking bootloader voids warranty. and root too but you can always try the kdz that disables the big cores and undo the root..
http://forum.xda-developers.com/g4/general/lg-g4-100-root-success-directives-root-t3180586

thank you, i found the root for locked bootloader, i done it, but its only for 5.1 android, and i still cant flash roms, only one rom witch they make for locked bootloader, so after all the process went back to unroot 6.0 androis >:
hope some1 will break this bootlock .

About all versions of LG G7 unlock the bootloader and ROOT discussion

I am from China, I don't know English, this article is translated by Google, but I hope you can read it.
In our place, there are technologies for all models of G7 to unlock bootloader and ROOT (T-MOBILE version of the phone needs to be replaced with a cup to become a general version to unlock the bootloader, because this version of the phone cpu is encrypted), but, frustrating Yes, this technology is only in the hands of a few people, they do not intend to share, and they use this technology to gain benefits.
They provide remote unlocking of the bootloader and ROOT services, but need to pay 150 yuan, which is expensive for me and is meaningless.
I bought a G7 from a second-hand merchant who replaced the RAM with 4G and changed it to 6G. He said that the machine replaced the T-MOBILE version of the CPU, but the IMEI code displayed on the machine is the Korean blue version, and my G7 is Red, I don't know if G7 has changed the IMEI code. If so, please let me know, thank you
My mobile phone, the merchant has helped me unlock the bootloader and ROOT. And, since someone on XDA has shared the cracked version of LGUP, I can use it to brush in any version of my G7. I brushed Korea, T-MOBILE, and KDZ in Europe, and in Europe and Korea. The version of the system ROOT, because now only the European version and the Korean version of ROOT BOOT, I brushed into the boot through FASTBOOT, but, very strangely, I brushed the three versions of KDZ, only T-MOBILE version KDZ can enter FASTBOOT via ADB commands or keystrokes (maybe this phone is T-MOBILE version), other versions will only restart. Therefore, I have to first brush into the T-MOBILE version of KDZ into FASTBOOT to brush into the version of ROOT BOOT I want, then brush into the corresponding version of KDZ, and then install magisk, you get ROOT. However, I am not satisfied with the current system version, I want a newer version, and make it ROOT BOOT, I brushed KDZ many times, when I entered FASTBOOT again into BOOT, I found that I can't brush BOOT again. And FASTBOOT prompts to open the OEM to unlock
So, I entered the system, clicked on the developer option, found that the OEM unlock option has become gray, and can not be opened, so my phone can not be brushed into BOOT, I am looking for ways online, unfortunately, I have not I found a way to succeed. Later, I saw the latest V30 unlocking Bootloader post. It seems that after unlocking the bootloader, the OEM unlock will turn gray. It will take a few days to open again. However, I didn’t see it. Before the V30 post, I have already entered my G7 into FASTBOOT and re-locked the bootloader via the adb command.
Now I can open the OEM to unlock it, but it is useless. Because the bootloader is locked, I still can't brush it into the BOOT through FASTBOOT. Because the bootloader has been locked back by me, I did this, I thought my G7. Is the T-MOBILE version of the replacement CPU machine, in our case, it is said that after the T-MOVILE version of the machine to replace the CPU, T-MOBILE G7 can unlock the bootloader, and will not lock
Now, I am trying to find a way to unlock the bootloader, but no, yes, no, I hope to get some clues to unlock the bootloader by contacting those who have remotely unlocked the bootloader and ROOT by paying. However, no one wants to do this, they I even told me to go away, maybe because they have already paid to unlock it, and telling me will damage their interests. Finally, I learned about the process of remotely unlocking the bootloader by one person. Those who master the technology to unlock the bootloader do not want to expose it. They help the remote unlocking of the bootloader and block the operation process, just through the chat software. Release the command to let you connect to the computer or switch the phone into LG's brush mode, etc. I want to get some information through the screen of the phone. Unfortunately, that person doesn't remember, I only asked some strange news, that person's The mobile phone is a Korean mobile phone that does not unlock the bootloader. The mobile phone version is Android 9.0 South Korea's 20c. The remote flashing machine does not know how to enter the Korean version of FASTBOOT on this mobile phone that does not unlock the bootloader and ROOT. As far as I know, the Korean version The FASTBOOT of the mobile phone is hidden and cannot be opened by the command. This thing has been said on XDA... This thing makes me wonder, I thought they used the tool to brush into the European version of the system and then enter FASTBOOT to unlock. (Unfortunately, my G7 can only enter fastboot by brushing into the T-MOBILE version, the European version cannot pass the adb Or in the form of platinum enter). Some time ago, someone discussed on xda how to unlock the bootloader by brushing into the European version of the system. Since the cracking tool did not come out at the time, they hoped to use the octopus box to brush into the European version of the system and then unlock it (how to unlock without explanation), now crack The tool came out, it can make our G7 brush into any version of the system, but the discussion is gone...
If you have any ideas, please let me know and send it to this mailbox at [email protected]. I am not very good at using xda, and I need vpn on xda. I also need to pay for using VPN. I am poor, this is for me. It’s too much trouble...
*I have a few questions that need your help, 1 how to change the IMEI of G7, I want to try to get a network upgrade by changing imei to the corresponding system version.
2 How to unlock KDZ of G7, I need to unlock KDZ of G7 to extract BOOT.IMG into ROOT BOOT, I tried new methods and some old methods that I can find in my country to unlock KDZ of G7. failed
If you have a method, please let me know (hopefully have a tutorial), I hope to get your reply, thank you...

thanks for your sharing。

Intresting things they do in China. This is why I never trust buying a chinese brand. I bought in 2015 3 xiaomi mi3 mediatek clones from official shenzhen mi store. Never trust chinese brands again. That applyes for software also.

What version of kdz do you want? I have most versions from European model and 2 versions form Korean pie.

Update instructions, I used my friend's Korean version G7 to brush into T-MOBILE version KDZ tiles, can not boot, now only into 9008 mode, now confirmed that the replacement of CPU G7 seems to have become a strange machine, it seems that it can be cracked version of LGUP into any version of KDZ will not tiles, but other machines can not, such as my friend's Korean version machine brush into T-MOBILE machine. It will change into bricks, but one thing is certain that KDZ of Korean and European machines can be brushed into each other, because the publisher of LGUP cracked version is using this tool to make European G7 brush into Korean G7 9.0 system, but it is possible to brush KDZ randomly into Korean G7 system. I do not recommend that you do so. I do not think you have the hope that your machine will become a brick. If it has happened, I'm sorry, I can only say that, but I hope you can share it and let those who have not happened avoid it. I need more communication and look forward to your reply.

It has entered 9008 mode. Can I change it to European IMEI and ID, then get the unlock file, brush it into European system, and turn it into a European machine, then unlock BL. In theory, the hardware of G7 is the same... I hope someone can share the IMEI and device ID of the European version G7 to me. It's better to have unlock.bin file. I want to test it. My mailbox is [email protected].

x593095611 said:
It has entered 9008 mode. Can I change it to European IMEI and ID, then get the unlock file, brush it into European system, and turn it into a European machine, then unlock BL. In theory, the hardware of G7 is the same... I hope someone can share the IMEI and device ID of the European version G7 to me. It's better to have unlock.bin file. I want to test it. My mailbox is [email protected].
Click to expand...
Click to collapse
That will be verry nice. Is it ok if I give you one from one g7em un retail mode but that has sim enabled?

Any update on this? Would be an interesting method, i would absolutely do this if it works

x593095611 said:
It has entered 9008 mode. Can I change it to European IMEI and ID
Click to expand...
Click to collapse
No you can't. Starting with SD845 - IMEI and ID stays in CHIP and regenerates on every boot.
So, the only way to achieve it is to contact this taobao seller and he will resolder EU chip, flash EM firmware and unlock it and then re-solder back your chip and you will have EM firmware but IMEI and SN will be 0.
N.B.:Regarding G7 it is build in 3 factories and has 4 different Hardware revisions so stop thinking HW is identical and simply cross-flashing will do the trick

So no way to sim unlock the lg g7 tmobile?

lmg710em unsupported country
Greetings everyone;
Since my lmg710em is registered in an "unsupported country"; I cannot unlock my bootloader with official way. I've looked for hours to find an unofficial way but there is nothing... I have tried to flash France's kdz, but nothing changes. Does someone have the european version's unlock.bin file? This is my only hope for now.
It's really bad to be forbidden to use the device, which you paid for, as you like.
I really need help guys,
thank you all,
cheers...

can unlock unofficial by flash abl LG V35

hsrose11 said:
can unlock unofficial by flash abl LG V35
Click to expand...
Click to collapse
Wow have ever you tried it? B'cause I really dont want to brick my phone :/

"Fastboot oem unlock" does not works :/ I have already tried it. The output was "unknown command" or sth like that as I remember. Was there any other step before cmd prompt section?

yes, flash bootloader LG V35

hsrose11 said:
yes, flash bootloader LG V35
Click to expand...
Click to collapse
Wow, makes sense man, thanks! But there is only one problem... I dont know how to do it