Is the LG G4 H81220x MM rootable? - G4 General

Sorry if its too much of a 'newb' question, but I've been reading up on this for days, and I'm still not sure, if there is an exploit for the h81220x (Marshmallow, Fido/Rogers(?)) variation of the LG G4. I've seen messages from 2017 that say "not yet, for this one anyway", so it's all quite confusing. I only want to install a ROM with as late a version of Android as possible (beyond MM). I know the bootloader is hard as nails to crack, and there are alternatives, like "USU", and one wrong move and this thing goes into a permanent bootloop. So is it now doable for a Fido-branded G4 with the H81220X firmware installed, and if so, which would be the best / safest method to go with? Thanks!

Cyanoid said:
Sorry if its too much of a 'newb' question, but I've been reading up on this for days, and I'm still not sure, if there is an exploit for the h81220x (Marshmallow, Fido/Rogers(?)) variation of the LG G4. I've seen messages from 2017 that say "not yet, for this one anyway", so it's all quite confusing. I only want to install a ROM with as late a version of Android as possible (beyond MM). I know the bootloader is hard as nails to crack, and there are alternatives, like "USU", and one wrong move and this thing goes into a permanent bootloop. So is it now doable for a Fido-branded G4 with the H81220X firmware installed, and if so, which would be the best / safest method to go with? Thanks!
Click to expand...
Click to collapse
Believe me or not but UsU is the ONLY way to go.
Sent from my OnePlus 6T using XDA Labs

Well, I recognize your name, so oh yes, I certainly do believe you! It's a tricky phone to root, so thanks for pointing me in the right direction. :good:
steadfasterX said:
Believe me or not but UsU is the ONLY way to go.
Sent from my OnePlus 6T using XDA Labs
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Related

Is there a way to install a custom rom on H870DS version?

Hey,
I got the LG G6 H870DS version, i didn't know it has a locked bootloader
Is there any way to override the issue and install a custom rom or am i doomed with the stock rom?
You're doomed I'm afraid. The chance LG will make you able to unlock it in the future is slim to none.
is the h870ds with locked bootloader rootable with kingroot?
I have the european model with unlocked bootloader, but I prefer the dual sim model, I offer straight swap to anyone interested
Sent from my LG-H870 using Tapatalk
I've not tried it, don't blame me...
http://www.androidinfotech.com/2017/04/lg-g6-duos-h870ds-nougat-firmware.html
^ ignore that, I didn't read it properly. It's a no. Not yet.
Back to topic.
That's possibly a way
Didn't try it myself
bgumble said:
Back to topic.
That's possibly a way
Didn't try it myself
Click to expand...
Click to collapse
Complete BS.
That video is essentially an ad for his YouTube channel then descriptions for a generic unlocker. He even says in the video this tool is only good if your phone is rootable. Don't waste your time.
LL13-
LOL no disrespect to bgumble though !! Thanks for posting this !

Just purchased an H918 10k - should I take OTA update?

Is there anything I should know in particular to 10k? It sounds like rooting isn't enabled unless i downgrade to another firmware version (is it even possible?).
firstblud said:
Is there anything I should know in particular to 10k? It sounds like rooting isn't enabled unless i downgrade to another firmware version (is it even possible?).
Click to expand...
Click to collapse
Yeah don't update. You need to downgrade which is possible.
Sent from my LG V20 using XDA Labs
Same thing with me. Recieved h918 with 10k. Downgraded to j, unlocked bootloader, flashed twrp and custom rom.
Is there a specific page you'd suggest for me to follow our search term? Sorry I'm very new to this and thanks.
firstblud said:
Is there a specific page you'd suggest for me to follow our search term? Sorry I'm very new to this and thanks.
Click to expand...
Click to collapse
Find the post with LGUp (restore even for bricked devices) and follow the instructions to downgrade. There are also some youtube videos which are very helpful, in order to downgrade or after, unlock bootloader and so on..

Need help to root H91810k

Hello,
First off, thank you for clicking on this post. I'm new on XDA and rooting LG phones. However, I've searched help on posts and other sites on how to root LG V20 H19810k (T-Mobile Variant) and many told me to downgrade first and then root. But none exactly gave any instruction or step by step on how to do it.
My worries are these ARB (Anti-Roll Back) software updates and if you were to downgrade, you will brick your phones and things like that, it's LG (I mean like there are a lot of complains about hardware faulty after phone updates and lawsuits about it), and different steps on each variants. I bought this phone like 2 or 3 months ago, and my thought on this phone's software is sucks so bad. It's so bad, I've had many problems like my mobile data often times stopped working (no network) even though signal is full bar, my live pixel background suddenly gone after playing this specific game, serious low fps in some games, RAM is full all the time, and many more. The phone itself has amazing hardware and specs, but damn why is the software so bad?
Right, so all my problems aside, I think switching ROM or downgrade probably a good idea and rooting for removing bloatwares. But many had problems installing twrp recovery to root and risks like bricking and bootlooping. And in this post, I'm hoping for help to downgrade and root H91810k.
ignoll said:
Hello,
First off, thank you for clicking on this post. I'm new on XDA and rooting LG phones. However, I've searched help on posts and other sites on how to root LG V20 H19810k (T-Mobile Variant) and many told me to downgrade first and then root. But none exactly gave any instruction or step by step on how to do it.
My worries are these ARB (Anti-Roll Back) software updates and if you were to downgrade, you will brick your phones and things like that, it's LG (I mean like there are a lot of complains about hardware faulty after phone updates and lawsuits about it), and different steps on each variants. I bought this phone like 2 or 3 months ago, and my thought on this phone's software is sucks so bad. It's so bad, I've had many problems like my mobile data often times stopped working (no network) even though signal is full bar, my live pixel background suddenly gone after playing this specific game, serious low fps in some games, RAM is full all the time, and many more. The phone itself has amazing hardware and specs, but damn why is the software so bad?
Right, so all my problems aside, I think switching ROM or downgrade probably a good idea and rooting for removing bloatwares. But many had problems installing twrp recovery to root and risks like bricking and bootlooping. And in this post, I'm hoping for help to downgrade and root H91810k.
Click to expand...
Click to collapse
Search this forum there's numerous threads on how to root
Sent from my LG-H910 using XDA Labs
Downgrade to 10j and use DirtySanta, or use lafsploit.
IMHO they are about equally difficult. In the lafsploit thread, I state that you have to be on 10p or 10q, but I will update the post stating that you need to be on 10q or LOWER.
DirtySanta doesn't require you to use FWUL, so it does have that advantage.
Bottom line though, you can't stay on ARB 0 firmware and use any of the current ROMs -- they all require 10p or higher firmware.
-- Brian
cnjax said:
Search this forum there's numerous threads on how to root
Sent from my LG-H910 using XDA Labs
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Click to collapse
Thank you for the reply,
Seems I got it a little bit. So what I've been looking at this dirtythis and that unlock stuff for quite a while. I've been wondering if anyone asked about H918. I just realized that this dirtysanta bootloader is an exploit for other variants that don't support unlocking via fastboot.
So then I proceed to unlock my device and it successfully unlocked. (Follow this post to unlock).
I will try downgrading my device via lgup and will follow this post to flash and root.
ignoll said:
Thank you for the reply,
Seems I got it a little bit. So what I've been looking at this dirtythis and that unlock stuff for quite a while. I've been wondering if anyone asked about H918. I just realized that this dirtysanta bootloader is an exploit for other variants that don't support unlocking via fastboot.
So then I proceed to unlock my device and it successfully unlocked. (Follow this post to unlock).
I will try downgrading my device via lgup and will follow this post to flash and root.
Click to expand...
Click to collapse
Be careful about your rolling back to root, check your current software version and and if you're arb 1 you'll brick. If you're arb look up the laf exploit thread
Sent from my LG-H910 using XDA Labs
He said he is on 10k, so he is safe to rollback to 10j which can use recowvery.
@ignoll Whatever you do, DO NOT flash the engineering aboot, or you will brick your phone. Follow the procedure in the post you linked, and you will be fine. DirtyCow gets you a temp root shell that will allow you to dd TWRP onto the recovery partition. If you get an error when you do run-as con, then you are NOT on 10j or lower. If you try to downgrade and you get an error about ARB, then you are NOT on 10k.
Just keep all that in mind and you will be fine.
-- Brian
runningnak3d said:
He said he is on 10k, so he is safe to rollback to 10j which can use recowvery.
@ignoll Whatever you do, DO NOT flash the engineering aboot, or you will brick your phone. Follow the procedure in the post you linked, and you will be fine. DirtyCow gets you a temp root shell that will allow you to dd TWRP onto the recovery partition. If you get an error when you do run-as con, then you are NOT on 10j or lower. If you try to downgrade and you get an error about ARB, then you are NOT on 10k.
Just keep all that in mind and you will be fine.
-- Brian
Click to expand...
Click to collapse
Thank you for the reply,
Just to make sure, 10k is the software version which you can find in the software info inside the settings app, right? This software info will show stuff about "Android version", and down on the list, there's the "Software version" and below it is the 10k coming from (H918xxx). Or, check it via svc menu and version info through the dialer app. All that is to check whether I'm in the correct version or not, yes? (Sorry for this silly question, I just want to make sure. I'm really new to this)
And yes, I won't flash this engineering aboot, just follow the instruction and I'll be good. But just to make sure again, there's no this "engineering aboot" thing in the post that will brick my device, yes?
That said, I really appreciate for your warning and advice.
stuff about "Android version", and down on the list, there's the "Software version" and below it is the 10k
Click to expand...
Click to collapse
Yep, that means you are on 10k, so you are safe to rollback.
-- Brian
runningnak3d said:
Yep, that means you are on 10k, so you are safe to rollback.
-- Brian
Click to expand...
Click to collapse
Please, i am also stuck and confused, as i understand LG devices, downgrading may cause device to go dead completely, i want to be sure before i begin this process. Here is my device Software Info:
Software Version: H91810K
Build Number: NRD90M
My device is locked to T-mobile, and i want to unlock using Octopus Box as i have credits. Unlocking requires root, is it possible to downgrade to the mentioned version 10j and not brick device? Any one can help me on this.
kenneth excellence said:
Please, i am also stuck and confused, as i understand LG devices, downgrading may cause device to go dead completely, i want to be sure before i begin this process. Here is my device Software Info:
Software Version: H91810K
Build Number: NRD90M
My device is locked to T-mobile, and i want to unlock using Octopus Box as i have credits. Unlocking requires root, is it possible to downgrade to the mentioned version 10j and not brick device? Any one can help me on this.
Click to expand...
Click to collapse
If you root your phone it will be unlocked no need to use an octopus box.
Sent from my LG-H910 using XDA Labs
That is only true if the engineering bootloader is used. The H918 still needs work to get it carrier unlocked.
-- Brian
cnjax said:
If you root your phone it will be unlocked no need to use an octopus box.
Sent from my LG-H910 using XDA Labs
Click to expand...
Click to collapse
Are you serious? If this is possible how do i root since i am on H91810K Software version?
cnjax said:
If you root your phone it will be unlocked no need to use an octopus box.
kenneth excellence said:
Are you serious? If this is possible how do i root since i am on H91810K Software version?
Click to expand...
Click to collapse
Click to expand...
Click to collapse
He is serious, but incorrect.
runningnak3d said:
That is only true if the engineering bootloader is used. The H918 still needs work to get it carrier unlocked.
-- Brian
Click to expand...
Click to collapse
You need to pay attention to runningnak3d when he says something about root and the V20.
Cheers

Where and how do I start my rom installation process?

I have an LG V20, thats the sprint version. I'm on the March 1st 2018 security patch. Id like to install a custom rom to increase game performance, but i have no clue where to start. Can someone give me an idea what to look for? Any good roms?
Remphz said:
I have an LG V20, thats the sprint version. I'm on the March 1st 2018 security patch. Id like to install a custom rom to increase game performance, but i have no clue where to start. Can someone give me an idea what to look for? Any good roms?
Click to expand...
Click to collapse
You don't. Thank Sprint for making the LS997 the most locked down variant and unrootable past the very old version ZV7 with a negligible chance of ever becoming rootable again.
For all the other v20 variants, which are still rootable, there are several guides for different variants, just search xda for the thread for your variant.
Phoenix591 said:
You don't. Thank Sprint for making the LS997 the most locked down variant and unrootable past the very old version ZV7 with a negligible chance of ever becoming rootable again.
For all the other v20 variants, which are still rootable, there are several guides for different variants, just search xda for the thread for your variant.
Click to expand...
Click to collapse
Ugh wow gg. I was wondering if this was legit or not : https://www.getdroidtips.com/twrp-recovery-sprint-lg-v20/
Remphz said:
Ugh wow gg. I was wondering if this was legit or not : https://www.getdroidtips.com/twrp-recovery-sprint-lg-v20/
Click to expand...
Click to collapse
It's probably legit but the key is in the first step, you have to unlock the bootloader. Currently there is no way to do that therefore it's a no go.
Sent from my LG-H910 using XDA Labs
Remphz said:
Ugh wow gg. I was wondering if this was legit or not : https://www.getdroidtips.com/twrp-recovery-sprint-lg-v20/
Click to expand...
Click to collapse
No, their guide on unlocking the bootloader is wrong and won't work on any v20. It's a joke, they took the generic steps and assumed they worked.

Root for H910 V20h?

My V20 having an issue with GPS since Oreo update. (I've tried the GPS locker apps but those are not really working) I didn't really care about it as this was my secondary phone, but now I want to use it as the main one. My theory is, if I downgrade it or try different kernel/rom, it will solve this problem. I swear I've looked everywhere, but I did NOT find any solution. All that I've found stops at version v20g... Can I downgrade/root somehow? My device is "virgin" means it is stock. Bootloader locked etc...
Thanks
ps. It was 3 years ago when I last rooted a device... the world has changed a bit since then (So let's just say I am a noob beginner )
curtishunter said:
My V20 having an issue with GPS since Oreo update. (I've tried the GPS locker apps but those are not really working) I didn't really care about it as this was my secondary phone, but now I want to use it as the main one. My theory is, if I downgrade it or try different kernel/rom, it will solve this problem. I swear I've looked everywhere, but I did NOT find any solution. All that I've found stops at version v20g... Can I downgrade/root somehow? My device is "virgin" means it is stock. Bootloader locked etc...
Thanks
ps. It was 3 years ago when I last rooted a device... the world has changed a bit since then (So let's just say I am a noob beginner )
Click to expand...
Click to collapse
There's numerous threads about unlocking the bootloader and root, search is your friend
Sent from my LG-H910 using XDA Labs
cnjax said:
There's numerous threads about unlocking the bootloader and root, search is your friend
Sent from my LG-H910 using XDA Labs
Click to expand...
Click to collapse
The only thing... I didn't find anything for h910 v20h. As I've mentioned before, the latest was for the stock ROM version v20g. I just don't want to brick my device using the outdated method on a possibly unsupported version of ROM... But I would be happy if more then 10 people could confirm that I can use the same process on my v20h what was good for the v20g.
curtishunter said:
The only thing... I didn't find anything for h910 v20h. As I've mentioned before, the latest was for the stock ROM version v20g. I just don't want to brick my device using the outdated method on a possibly unsupported version of ROM... But I would be happy if more then 10 people could confirm that I can use the same process on my v20h what was good for the v20g.
Click to expand...
Click to collapse
This is your only option
https://forum.xda-developers.com/v20/how-to/root-h910-v10m-t3664500
Sent from my LG-H910 using XDA Labs

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