Time to root my LG G4 H-815TR v20i. What do I do? - G4 Q&A, Help & Troubleshooting

I have boringly used an LG G4 for almost two years now. Just after a few months of using it, I had the bootloop issue, LG gave me another G4 which I've been using for more than a year. But I believe it is time to unlock the true potential of my phone. I've transferred all my pics and vids and similar stuff to my computer, so now it's go time. The only thing is... I don't know what to do.
Model number: LG-H815TR
Android version: 6.0
Android security patch level: 2017-03-01
Kernel version: 3.10.84
Build number: MRA58K
Software version: V20i-TUR-xx
These are the info I think are relevant. I have no experience in rooting whatsoever. What do I do now? (an up-to-date detailed guide also works for me)

Hey,
I still need help for this.
I've checked online and couldn't find anything for H-815TR v20i running Marshmallow.
Can someone come to my rescue?

Ron298 said:
Hey,
I still need help for this.
I've checked online and couldn't find anything for H-815TR v20i running Marshmallow.
Can someone come to my rescue?
Click to expand...
Click to collapse
It's very easy:
You can't unlock your device because LG allows unlocking of the 815 international version and 811 only.
Marshmallow can be rooted on unlocked devices only (so not on yours).
If you really need root you need to downgrade to lollipop.
Downgrading to LL requires a compatible anti roll back version. Search the forum for the code which displays your current antirollback version and the how-to for downgrading and rooting LL
.
Sent from my LG-H815 using XDA Labs

Oh okay.
So I can't root my phone as is, I need to downgrade to Lollipop to do that.
Well I was thinking of flashing some custom ROMs and maybe underclocking for more battery life but given that this is my only smartphone I'd better stick to its current state then.

find the service menu for your phone. Google lg g4 service menu. call that number. check anti roll back version (last entry) if 0 you should be ok to downgrade, if not 0 downgrade will likely brick your device.
https://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
read carefully and ask a any questions before using LGUP if unsure
after that you can root with https://forum.xda-developers.com/g4/general/lg-g4-100-root-success-directives-root-t3180586
or upload your img file and kindly ask someone to root it for you and re-upload it

Anti-rollback version is 0.

Related

[Q] Versions and which can I use?

This is my very first time actually owning a device with that many Versions, in the past I've only rooted Nexus devices which is easy and straight forward.
I currently own a LG-H815; Main Software Version: V10e-OPT2-HQ; Software Version: V10d-EUR-XX
So do I have a h815 10e or 10d?
Do I have to go from a h815 10e/d to the EXACT same pre rooted image or can I use pretty much every h815 10abcdef Image?
I am sorry if this has been asked before, but the search function seems to not work atm.
Thanks in advance

HELP - how do i unroot my LG G3 so can get OTA updates please

Hi all i have the LG G3 D855 which is unlocked. now i rooted it a few years abk using which ever method it was at the time.
but now i wish to fully unroot it so i can get OTA updates etc .
my current fireware is:
android version: 5.0
basband version: MPSS.DI.2.1.0.1.C1.13-00048-M8974AAAAANPZM-1
Kernal version: 3.4.0
build number: LRX21R.A1440597237
software version: V201-234-10
something tells me this is wrong firmware for my phone
anyway does anybody have the latest version for this mobile please i just need to fully unroot
arnie2012 said:
Hi all i have the LG G3 D855 which is unlocked. now i rooted it a few years abk using which ever method it was at the time.
but now i wish to fully unroot it so i can get OTA updates etc .
my current fireware is:
android version: 5.0
basband version: MPSS.DI.2.1.0.1.C1.13-00048-M8974AAAAANPZM-1
Kernal version: 3.4.0
build number: LRX21R.A1440597237
software version: V201-234-10
something tells me this is wrong firmware for my phone
anyway does anybody have the latest version for this mobile please i just need to fully unroot
Click to expand...
Click to collapse
You need to follow this: http://forum.xda-developers.com/showthread.php?t=2785089
ok, i just do not know which is the latest firmware for my device as i see so many on the list
Latest firmware is v21a....and your software version is not v201 it's v20i.....hope it's help ?
ok but how do i install just a rom file from a Zip.
i dont have any DLL or anything
sorry i meant i only had a KDZ file, i had to download LG flash tool 2014
just hope i flashed the correct ROM now, downloaded that many arghhh, does anybody know what ROM my phone should be on please its the LG G3 d855 bought in the UK as thats where i live? i bought it unlocked from the o2 shop as well,

Root for lgg4 us cellular lgus991

I'm kinda new at this and I need a little help with figuring out if I can actually root the lgg4 I bought? I've never bought anything from another variant other than the typical sprint, mobile etc.......so with that said......can I root this phone that's from us cellular? And if so can you point me in the right direction please.? My software information is lgus99120c
My model number is lgus991
Please help me
So far no root on MM. You will need to downgrade to LL with LGUP. Do research for your own model.
LG G4 us991 "unlocked"/ US Cellular
There is very little information on these G4 variations,
I am also struggling with this device. No real root method, mention of a couple custom and stock roms but no links,
Im running stock unrooted lollipop
Any real help would be greatly appreciated.
alphabitssoup said:
There is very little information on these G4 variations,
I am also struggling with this device. No real root method, mention of a couple custom and stock roms but no links,
Im running stock unrooted lollipop
Any real help would be greatly appreciated.
Click to expand...
Click to collapse
There is a brand new method for your device which can fully unlock it and so install even custom ROMs on it! Ofc rooting stock MM is no issue anymore for you then..
Just check out my PoC unlock thread in the g4 area!
This unlock method is based on ls991 (!!!!) firmware and so you should have no limitations. ("should" because no ls991 user tried it yet but it worked for other models where we had much higher risk of issues then with a ls991..)
.
Sent from my LG-H815 using XDA Labs

[LG-H81220U] I want to downgrade from MM to LP so that I can root my LG G4 (H81220U)

Hello, I want to downgrade my LG G4 (Software Version: H81220U) from Marshmallow to Lollipop so that I can root my phone. Could anybody guide me to achieve a downgrade AND a root? My carrier is Telus/Koodo in case it's relevant information.
Thank you in advance
syphlect said:
Hello, I want to downgrade my LG G4 (Software Version: H81220U) from Marshmallow to Lollipop so that I can root my phone. Could anybody guide me to achieve a downgrade AND a root? My carrier is Telus/Koodo in case it's relevant information.
Thank you in advance
Click to expand...
Click to collapse
first you need to nkow if tou can as in some models antirollback changes and makes it imposible to downgrade. so first make sure that antirollback versions they are if the same then you may if different then youll hard brick phone.
Hi @syphlect
Did you manage to downgrade it?
Have searched all the forums, did not find a way to root the LG G4 H1220u Koodo version.
let me know if you found any links
Use ...
Use ... LGUP - NEW ( https://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803 ) to downgrade from MM to LP. You want H81210 for your Lollipop KDZ. Once you've done that, you can install a pre-rooted image (easier) or root your own extracted KDZ. Note: You will not be able to obtain root through any of the Root-Apps - check out the link in the next paragraph for the general how-to for the H812, if you have not already done so.
Refer to [Canadian Guide] - Complete Source for the LG G4 H812. Linux VM/Root/Tools&Files at: https://forum.xda-developers.com/g4/general/canadian-guide-complete-source-lg-g4-t3212449 for the how-to on rooting the H812.
Follow the Root ANY LG G4 Variant 100% Success Directives | Root Injection | Less Bricks (https://forum.xda-developers.com/g4/general/lg-g4-100-root-success-directives-root-t3180586) ONLY for installing the rooted image and use the command for the H812 model in the 2nd post here: https://forum.xda-developers.com/g4/...ot-lg-t3164765 found in the following box: Command to Flash System.img (All Variants):
Once done, because you still will have a locked bootloader, you will not be able to install a regular version of a custom recovery or flash a custom rom (that may come eventually when efidroid is managed to be ported to the locked LG4's). However, you will be able to install a non-regular version of a custom recovery with TWRP-in-FisH that has been tested on the H812 and is working just fine with Version 3 Beta 4 and 5 (you can find those links in the later posts in that site): [LOCKED][G4][TWRP][UNOFFICIAL] TWRP-in-FIsH for all locked G4 devices at https://forum.xda-developers.com/g4/development/locked-twrpinfish-locked-g4-devices-t3573048
Good luck.
S.
NB: Don't forget to hit the Thanks button for those answering questions your questions and trying to help.
---------- Post added at 04:06 PM ---------- Previous post was at 03:52 PM ----------
phaninder.ch said:
Hi @syphlect
Did you manage to downgrade it?
Have searched all the forums, did not find a way to root the LG G4 H1220u Koodo version.
let me know if you found any links
Click to expand...
Click to collapse
See ... above ...
S.
Thanks a lot buddy... Will give it a try this week.
-Phani
See if you can ...
phaninder.ch said:
Thanks a lot buddy... Will give it a try this week.
-Phani
Click to expand...
Click to collapse
See if you can ... find KDZ's that that are particular to your region in the event there may be differences in bandwidths that are operational, etc.
Cheers,
S.
Yeah could not find specific to koodo Canada. Need to see if its safe to go with something similar to it.
Also I see my current software version is H81220Z. It got updated overnight even though I un-checked to install updates automatically.
Will the LGUP process still work to downgrade?
Koodo is on the ...
phaninder.ch said:
Yeah could not find specific to koodo Canada. Need to see if its safe to go with something similar to it.
Also I see my current software version is H81220Z. It got updated overnight even though I un-checked to install updates automatically.
Will the LGUP process still work to downgrade?
Click to expand...
Click to collapse
Koodo is on the ... Telus network. You can use Telus KDZ's (doesn't specifically have to be H81210Z and they seem to be available (check the Canadian Guide) - others have indicated you can use other Canadian providers (read the Canadian guide). I can't confirm this personally.
Use LGUP-NEW for sure as you are less likely to brick from what I understand if an anti-rollback provision has been put in on the latest firmware upgrade.
S.

Rootig h812 with rooted system.img

Hi,
I have an Lg G4 h812 with H1220z software version. Now i have a few questions someone needs to answer.
Can and how do i downgrade with a kdz from this site(http://bit.ly/2qR71rQ) and root using a h81210b image (http://bit.ly/2q2Rbve) without anything going sideways?
And can you upgrade to MM keeping root?
And if it IS not compatible, what is?
Help (and no things going sideways) would be appreciated
You'll find everything you need at ...
TheLatios381 said:
Hi,
I have an Lg G4 h812 with H1220z software version. Now i have a few questions someone needs to answer.
Can and how do i downgrade with a kdz from this site(http://bit.ly/2qR71rQ) and root using a h81210b image (http://bit.ly/2q2Rbve) without anything going sideways?
And can you upgrade to MM keeping root?
And if it IS not compatible, what is?
Help (and no things going sideways) would be appreciated
Click to expand...
Click to collapse
You'll find everything you need at ... [Canadian Guide] - Complete Source for the LG G4 H812. Linux VM/Root/Tools&Files
https://forum.xda-developers.com/g4/general/canadian-guide-complete-source-lg-g4-t3212449
Read through everything carefully. You'll find everything you need if not in the OP, in the member posts. You cannot upgrade to MM and keep root and you cannot install any custom rom at this stage as the H812 has a locked bootloader that cannot be officially unlocked.
With steadfasterX's TWRP-in-FisH (https://forum.xda-developers.com/g4/development/locked-twrpinfish-locked-g4-devices-t3573048) you can install a customized version of TWRP recovery that will allow you to back up your complete phone.
sdembiske said:
You'll find everything you need at ... [Canadian Guide] - Complete Source for the LG G4 H812. Linux VM/Root/Tools&Files
https://forum.xda-developers.com/g4/general/canadian-guide-complete-source-lg-g4-t3212449
Read through everything carefully. You'll find everything you need if not in the OP, in the member posts. You cannot upgrade to MM and keep root and you cannot install any custom rom at this stage as the H812 has a locked bootloader that cannot be officially unlocked.
With steadfasterX's TWRP-in-FisH (https://forum.xda-developers.com/g4/development/locked-twrpinfish-locked-g4-devices-t3573048) you can install a customized version of TWRP recovery that will allow you to back up your complete phone.
Click to expand...
Click to collapse
Thx for the info, but from what I see one question unanswered. Which images and KDZs are compatible with h1220z?
You will find most of ...
TheLatios381 said:
Thx for the info, but from what I see one question unanswered. Which images and KDZs are compatible with h1220z?
Click to expand...
Click to collapse
You will find most of ... the questions you are asking in the Canadian Guide I provided the link to. Try the search function for the site posts
You are looking for an H81210 for Lollipop. I would suggest H81210N or higher for your rooted image as it has the latest Stagefright vulnerability security update. You can however use for your stock Lollipop image a lower version, e.g. H81210H before flashing your rooted image. The only caveat is that you may want to use Rogers/Fido firmware if that is your carrier, otherwise you will lose voLTE.
Again, I suggest you read through the posts, search for answers in the Canadian Guide. It's all been covered there.
Addendum: Koodo is on the Telus network.

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