Downgrade H815 (Taiwan Version) from MM TO LP? - G4 Q&A, Help & Troubleshooting

Well, I thought buying this phone would end my terrible relationship with ATT's Note 4 for good... Hell it's even an H815 for christ sakes....
But it seems like it can't be rooted on MM due its bootloader being locked :/
Yes, I did try using the official unlock tool but, as some of you know it doesn't work for the Taiwan version (Just my luck).
However, I looked around and saw that the Lollipop version can have root/twrp installed WITHOUT unlocking the bootloader.
In conclusion, my question is............. will I be able to downgrade from MM to Lollipop?
(H815 Taiwan Version)

http://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803/post63843588#post63843588
Firmware files: http://storagecow.eu/index.php?dir=Xda/LG+G4/

Peshyy said:
http://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803/post63843588#post63843588
Firmware files: http://storagecow.eu/index.php?dir=Xda/LG+G4/
Click to expand...
Click to collapse
Thank you ^^
And just to confirm, There's no way to root my Phone if i'm on MM is there?

Odischeese said:
Thank you ^^
And just to confirm, There's no way to root my Phone if i'm on MM is there?
Click to expand...
Click to collapse
From what I know the H815 model can be unlocked. But I think it's only the International one. There's an unofficial unlock in the works, just look around on the forums, haven't been that interested 'cause I'm rocking an International model

Peshyy said:
From what I know the H815 model can be unlocked. But I think it's only the International one. There's an unofficial unlock in the works, just look around on the forums, haven't been that interested 'cause I'm rocking an International model
Click to expand...
Click to collapse
I tried using the Official unlock tool but, it doesn't support the Taiwan version, even though it's an H815 :/
I did see that an unofficial tool is in the works but I mean....I just came from an ATT note 4 ........
...........I've been playing the wait game ever since November of 2014......

Odischeese said:
Well, I thought buying this phone would end my terrible relationship with ATT's Note 4 for good... Hell it's even an H815 for christ sakes....
But it seems like it can't be rooted on MM due its bootloader being locked :/
Yes, I did try using the official unlock tool but, as some of you know it doesn't work for the Taiwan version (Just my luck).
However, I looked around and saw that the Lollipop version can have root/twrp installed WITHOUT unlocking the bootloader.
In conclusion, my question is............. will I be able to downgrade from MM to Lollipop?
(H815 Taiwan Version)
Click to expand...
Click to collapse
Did you manage to root and install a good custom rom. I have the same model, please advise me friend.
Thanks

Customs roms can't be installed due to Locked bootloader
guitarmaniatico said:
Did you manage to root and install a good custom rom. I have the same model, please advise me friend.
Thanks
Click to expand...
Click to collapse
I got help the other day on reddit:
https://www.reddit.com/r/lgg4/comments/4njib4/h815_taiwan_mm_roottwrp/
It seems like the best I (we) can do is get root and flashfire.
No custom roms

Odischeese said:
I got help the other day on reddit:
https://www.reddit.com/r/lgg4/comments/4njib4/h815_taiwan_mm_roottwrp/
It seems like the best I (we) can do is get root and flashfire.
No custom roms
Click to expand...
Click to collapse
Thanks for the answer man, however if we downgrade to LP can we finally free our phones?
Custom roms is a must for me. I´ve been using customs since... forever.
Thanks again my friend

Peshyy said:
http://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803/post63843588#post63843588
Firmware files: http://storagecow.eu/index.php?dir=Xda/LG+G4/
Click to expand...
Click to collapse
can some one please identify which rom is lollipop version and can work on Taiwanese H815
i only see europe.portugal,netherland n SEA ...only lollipop please:crying::crying:
---------- Post added at 01:12 AM ---------- Previous post was at 01:09 AM ----------
is there any taiwanese h815 forum here is xda if yes please do share

jinderation said:
can some one please identify which rom is lollipop version and can work on Taiwanese H815
i only see europe.portugal,netherland n SEA ...only lollipop please:crying::crying:
---------- Post added at 01:12 AM ---------- Previous post was at 01:09 AM ----------
is there any taiwanese h815 forum here is xda if yes please do share
Click to expand...
Click to collapse
Lollipop, or LP, is version 5.1. Just look at the KDZ files that are Android 5.1

Nope.
guitarmaniatico said:
Thanks for the answer man, however if we downgrade to LP can we finally free our phones?
Custom roms is a must for me. I´ve been using customs since... forever.
Thanks again my friend
Click to expand...
Click to collapse
Like he said on the thread. The best we can do is install Xposed Framework :/

Odischeese said:
Like he said on the thread. The best we can do is install Xposed Framework :/
Click to expand...
Click to collapse
Ok, thanks for your answer we are seriously f*%&ed, can you please help in the Xposed Framework installation, what should I do?
Thanks again man!

guitarmaniatico said:
Ok, thanks for your answer we are seriously f*%&ed, can you please help in the Xposed Framework installation, what should I do?
Thanks again man!
Click to expand...
Click to collapse
This is where it's beyond my knowledge....
You have to downgrade to LP if you want root.
If you go to the thread, he explains it pretty well.

Related

[Q] Help newbie!

Hi!
I'm running on 5.0 (from LG PC Suite) and want to downgrade to KK can you guys help me? I just need what firmware should i download.
In reference to this: http://forum.xda-developers.com/showthread.php?t=2791761
Im confused on what to download.
Model is D855 16gb
SW: v20f-ESA-XX
Country: Philippines
Btw, my phone is not locked to any carrier and if you need more details please let me know.
Thanks a lot!
Use this tutorial... http://forum.xda-developers.com/showthread.php?t=2785089
Dont know which firmware you need. Maybe someone else can help you with that.
magikmichael said:
Use this tutorial... http://forum.xda-developers.com/showthread.php?t=2785089
Dont know which firmware you need. Maybe someone else can help you with that.
Click to expand...
Click to collapse
Yes i know that. thank you. I just need to know on what firmware should i download.
bump...
Green_Ranger said:
Hi!
I'm running on 5.0 (from LG PC Suite) and want to downgrade to KK can you guys help me? I just need what firmware should i download.
In reference to this: http://forum.xda-developers.com/showthread.php?t=2791761
Im confused on what to download.
Model is D855 16gb
SW: v20f-ESA-XX
Country: Philippines
Btw, my phone is not locked to any carrier and if you need more details please let me know.
Thanks a lot!
Click to expand...
Click to collapse
Out of curiosity.. why do you want to downgrade to KK?
Showtek1980 said:
Out of curiosity.. why do you want to downgrade to KK?
Click to expand...
Click to collapse
You can't root with LP (for now) and personally, i don't like the looks of LP that's why i want to root and try xmod.
Green_Ranger said:
You can't root with LP (for now) and personally, i don't like the looks of LP that's why i want to root and try xmod.
Click to expand...
Click to collapse
Use this
http://csmgdl.lgmobile.com/dn/downloader.dev?fileKey=FW990906432109876543213/D85510l_00.kdz
Source: http://lg-phone-firmware.com/index.php?id_mod=41
itsbighead said:
Use this
http://csmgdl.lgmobile.com/dn/downloader.dev?fileKey=FW990906432109876543213/D85510l_00.kdz
Source: http://lg-phone-firmware.com/index.php?id_mod=41
Click to expand...
Click to collapse
wow thank you so much! been waiting for someone to answer this! downloading now..
I'm still confused on how to get the right kdz... i mean what is the basis on how to get it.
Thanks so much!
Green_Ranger said:
wow thank you so much! been waiting for someone to answer this! downloading now..
I'm still confused on how to get the right kdz... i mean what is basis on how to get it.
Thanks so much!
Click to expand...
Click to collapse
Just make sure its for the 16gb variant and its from the same region
Usually if you flash firmwares from other regions theres always a ton of problems related to network signal, battery etc etc
itsbighead said:
Just make sure its for the 16gb variant and its from the same region
Usually if you flash firmwares from other regions theres always a ton of problems related to network signal, battery etc etc
Click to expand...
Click to collapse
So bricking is almost impossible? if that's only the problem when flashing, then that's good news!
thanks again for the info. really helped me a lot!
Green_Ranger said:
You can't root with LP (for now) and personally, i don't like the looks of LP that's why i want to root and try xmod.
Click to expand...
Click to collapse
Thanks for letting me know your opinion about LP... I'm in South Korea and I'm not looking forward to updating to LP just yet.. My carrier hasn't pushed out OTA update..Thank God..LOL! Hope you're back on KK and enjoying your rooted device :good:
Green_Ranger said:
Hi!
I'm running on 5.0 (from LG PC Suite) and want to downgrade to KK can you guys help me? I just need what firmware should i download.
In reference to this: http://forum.xda-developers.com/showthread.php?t=2791761
Im confused on what to download.
Model is D855 16gb
SW: v20f-ESA-XX
Country: Philippines
Btw, my phone is not locked to any carrier and if you need more details please let me know.
Thanks a lot!
Click to expand...
Click to collapse
Have a look here I would take number #150
Showtek1980 said:
Thanks for letting me know your opinion about LP... I'm in South Korea and I'm not looking forward to updating to LP just yet.. My carrier hasn't pushed out OTA update..Thank God..LOL! Hope you're back on KK and enjoying your rooted device :good:
Click to expand...
Click to collapse
Thanks! i have successfully rolled back to KK. Now i'm rooting it.
Green_Ranger said:
Thanks! i have successfully rolled back to KK. Now i'm rooting it.
Click to expand...
Click to collapse
great to hear that mate! Enjoy the beauty of KK .. :good:
Green_Ranger said:
Thanks! i have successfully rolled back to KK. Now i'm rooting it.
Click to expand...
Click to collapse
You can try the CloudG3 rom, it's a V20F (Lollipop) and it's rooted.
raptor2003 said:
You can try the CloudG3 rom, it's a V20F (Lollipop) and it's rooted.
Click to expand...
Click to collapse
Thanks bro but i want to try tweaks using stock rom. (downloading xposed and g3tweaksbox atm) but will try that in the future :good:
Green_Ranger said:
Thanks bro but i want to try tweaks using stock rom. (downloading xposed and g3tweaksbox atm) but will try that in the future :good:
Click to expand...
Click to collapse
No problem, indeed I think xposed doesn't work on LL.
Green_Ranger said:
You can't root with LP (for now) and personally, i don't like the looks of LP that's why i want to root and try xmod.
Click to expand...
Click to collapse
I updated to Lollipop using LG PC Suite and ran it Lollipop for a few days..
The most annoying issues for me were notification access.. I couldn't access the notifications with double tapping on them.. Always had to single tap and swipe.
The battery somehow drains a whole lot more when asleep.. I lost 10% overnight.. horrible!!!
I reverted to my last backup F400k10u by flashing the backup through TWRP. Back on KK and loving it !!! Lollipop sucks! :good:
Showtek1980 said:
I updated to Lollipop using LG PC Suite and ran it Lollipop for a few days..
The most annoying issues for me were notification access.. I couldn't access the notifications with double tapping on them.. Always had to single tap and swipe.
The battery somehow drains a whole lot more when asleep.. I lost 10% overnight.. horrible!!!
I reverted to my last backup F400k10u by flashing the backup through TWRP. Back on KK and loving it !!! Lollipop sucks! :good:
Click to expand...
Click to collapse
i also did the same.. i updated thru PC Suite and yes, I'm not satisfied with LP. As if LG did rushed things just to boast that they're the "first" to release LP (except for Nexus phones though). I'm encountering force closes and lots of lag. I don't even see the difference between KK and LP, oh there's one thing... it became worst.. hahaha!
Good thing you're back on KK. I'm much more pleased with KK since i can do most of things i want i even messed my phone and did a factory reset. (forgot to backup my data LOL )

TWRP recovery for LG H818N Dual INDIA

Hi Team,
Can u please provide file and step to root LG H818N Dual INDIA 6.0 version
luetaj said:
Hi Team,
Can u please provide file and step to root LG H818N Dual INDIA 6.0 version
Click to expand...
Click to collapse
Haha ??
Nothing to say about twrp. Wait two more years.
U can root your device under lollipop. But I suggest you to read some posts.
It is easy to find.
Please search before you open a new thread.
Thx
luetaj said:
Hi Team,
Can u please provide file and step to root LG H818N Dual INDIA 6.0 version
Click to expand...
Click to collapse
theres no such thing. as of now. maybe it ll come later maybe not.
only h815 and h811 can be bootloader unlcked the rest cant. and can only be rooted only if on LP.
NO twrp for LGH818N lollipop version as well
Can any one provide TWRP file for LGH818N for lollipop version as i was able to root and install Super user.
Engelm said:
Haha ����
Nothing to say about twrp. Wait two more years.
U can root your device under lollipop. But I suggest you to read some posts.
It is easy to find.
Please search before you open a new thread.
Thx
Click to expand...
Click to collapse
luetaj said:
Can any one provide TWRP file for LGH818N for lollipop version as i was able to root and install Super user.
Click to expand...
Click to collapse
Come back when you have unlocked your device:
Unlock and root is not the same!
You need an unlocked bootloader for twrp.
Bootloader of H818 cannot be unlocked yet and maybe never will.
That means no twrp for you.
.
Why nO developers supports for H818
alwynjoshy said:
Why nO developers supports for H818
Click to expand...
Click to collapse
As said just one post before: you need to have an unlocked device first! Write LG an email and sign the online petition to let them unlock your device (0.05% chance that this will happen) or wait and hope that someone finds another way (1% chance that this will happen)
#
Sent from my LG-H815 using XDA Labs
couldn't able to believe no devs or no way to root and custom recoveries for this flagship phone
---------- Post added at 02:27 AM ---------- Previous post was at 02:26 AM ----------
is it safe to downgrade and root + xposed?
have anyone tried?
https://www.search4roots.com/how-to-easily-root-lg-g4-h818p-dual-marshmallow-6-0-1/
Is anyone know this method for root lg g4 dual
alwynjoshy said:
couldn't able to believe no devs or no way to root and custom recoveries for this flagship phone
---------- Post added at 02:27 AM ---------- Previous post was at 02:26 AM ----------
is it safe to downgrade and root + xposed?
have anyone tried?
Click to expand...
Click to collapse
I hope very soon
:angel: you may install twrpinfish .
With it you may also choose costum rom
I recommend Satan OS
You may also try camUIX
Both are stock based lollipop Rooms ,
.. don't forget to hit the Thanks button if ive helped.
Sent from my Oppo CPH1719 using XDA Labs

How to Root LG G4 US99122a MM 6.0?

Hello. I have an LG G4 US99122a running on MM 6.0. I wanted to root the phone but I have researched that currently bootloader is locked on this model and cannot be rooted. Should I downgrade it to it’s stock rom running LP 5.1 and then rooth it from there? Any suggestion is much appreciated. Thanks.
Spangky1208 said:
Hello. I have an LG G4 US99122a running on MM 6.0. I wanted to root the phone but I have researched that currently bootloader is locked on this model and cannot be rooted. Should I downgrade it to it’s stock rom running LP 5.1 and then rooth it from there? Any suggestion is much appreciated. Thanks.
Click to expand...
Click to collapse
depends if phone can be downgraded.. some phone have antirollback.. example i have h811 and if am on lastest 20pMM its V3 so i can only downgrade to MM 20o... if i was on MM20i i could downgrade to LP 10n as 10n and 20i are V2.. so you need to ask what antirollback version your phone is.. some can.. and some phone cant be downgraded after you on specific firmware... try the hidden menu and check the software then scroll down and it says wich antirollback you are on. otherwise youll hard brick phone.
raptorddd said:
depends if phone can be downgraded.. some phone have antirollback.. example i have h811 and if am on lastest 20pMM its V3 so i can only downgrade to MM 20o... if i was on MM20i i could downgrade to LP 10n as 10n and 20i are V2.. so you need to ask what antirollback version your phone is.. some can.. and some phone cant be downgraded after you on specific firmware... try the hidden menu and check the software then scroll down and it says wich antirollback you are on. otherwise youll hard brick phone.
Click to expand...
Click to collapse
I have Version 2. can that be rolled back?
Spangky1208 said:
I have Version 2. can that be rolled back?
Click to expand...
Click to collapse
That i do not know i have t mobile. So now you know you have antirollback 2 ans you have verizon g4 so i guess its best to ask in the verizon thread section and ask. As i dont know thieir firmwares and antirollbacks.. ?
raptorddd said:
That i do not know i have t mobile. So now you know you have antirollback 2 ans you have verizon g4 so i guess its best to ask in the verizon thread section and ask. As i dont know thieir firmwares and antirollbacks..
Click to expand...
Click to collapse
It's actually US Cellular not Verizon. Thanks a lot I'll research more if this can be rolled back to stock or not.
Flash SU or any other through recovery
Spangky1208 said:
It's actually US Cellular not Verizon. Thanks a lot I'll research more if this can be rolled back to stock or not.
Click to expand...
Click to collapse
ohh yes my bad i got confused version with verizon. i i knew that model was us cellular .. theres a thread specially for us cellular in the general or question and answer sections ..
---------- Post added at 10:32 AM ---------- Previous post was at 10:32 AM ----------
Ajshal said:
Flash SU or any other through recovery
Click to expand...
Click to collapse
what are you talking about .. this phone cant be rooted.??
raptorddd said:
ohh yes my bad i got confused version with verizon. i i knew that model was us cellular .. theres a thread specially for us cellular in the general or question and answer sections ..
---------- Post added at 10:32 AM ---------- Previous post was at 10:32 AM ----------
what are you talking about .. this phone cant be rooted.??
Click to expand...
Click to collapse
Yes its can't be rooted while on MM 6.0. I also cannot flash through recovery as its bootloader is locked. My only option is to rollback to its stock firmware on LP so I can root it. Any advise?
Spangky1208 said:
Yes its can't be rooted while on MM 6.0. I also cannot flash through recovery as its bootloader is locked. My only option is to rollback to its stock firmware on LP so I can root it. Any advise?
Click to expand...
Click to collapse
well you need to ask here. i dont know anything about antirollback from any other then h811. if you can just downgrade and root it using the rooted.system.img
http://forum.xda-developers.com/g4/general/cellular-us991-t3151051
raptorddd said:
ohh yes my bad i got confused version with verizon. i i knew that model was us cellular .. theres a thread specially for us cellular in the general or question and answer sections ..
---------- Post added at 10:32 AM ---------- Previous post was at 10:32 AM ----------
what are you talking about .. this phone cant be rooted.??
Click to expand...
Click to collapse
LG is beefin up signature check very very badly.
You cant rollback to lollipop on the us991 version. If you are on marshmallow, then you are screwed. Sorry
yugioh1412 said:
You cant rollback to lollipop on the us991 version. If you are on marshmallow, then you are screwed. Sorry
Click to expand...
Click to collapse
One has to wonder if anti-rollback is permanent on the device or not, even with bootloader unlocking and or root access.
Root is now quit possible with the new vulnerabilities found. Now it seems to be a wait and see game if there are any devs that care to tackle certain G4 models that cannot be self-rooted yet. The dirty cow code is out...so yeah.
poog said:
One has to wonder if anti-rollback is permanent on the device or not, even with bootloader unlocking and or root access.
Root is now quit possible with the new vulnerabilities found. Now it seems to be a wait and see game if there are any devs that care to tackle certain G4 models that cannot be self-rooted yet. The dirty cow code is out...so yeah.
Click to expand...
Click to collapse
As far as i know yes. Antirollback ots permanent no one jas foind a way to roll back. It hard bricks phone
raptorddd said:
As far as i know yes. Antirollback ots permanent no one jas foind a way to roll back. It hard bricks phone
Click to expand...
Click to collapse
Yeah it sucks. Guess I just have to wait for any development on this device in the future. If anyone out there has this same model like mine I'm open to suggestions.

VS986

Hello, I've got a question about rooting, I got version VS98613B and I'm newbie in this, I can't find any root on this verison so can I use KDZ file on version VS98611a?
Thanks for your answers.
Loxik97 said:
Hello, I've got a question about rooting, I got version VS98613B and I'm newbie in this, I can't find any root on this verison so can I use KDZ file on version VS98611a?
Thanks for your answers.
Click to expand...
Click to collapse
id hold off there might be a locked bootloader twrp coming very soon
TheMadScientist420 said:
id hold off there might be a locked bootloader twrp coming very soon
Click to expand...
Click to collapse
Where'd you hear that at?
Spookymyo said:
Where'd you hear that at?
Click to expand...
Click to collapse
Look on the main lg g4 thread in dev section. I tested twrp for sprint. Varient.
I have twrp on a spri t g4. And if ure on lolipop rooted and can set to permissive u can have it to. Hasnt been relased pu licly yet but very soon. Just head over and check it out
Loxik97 said:
Hello, I've got a question about rooting, I got version VS98613B and I'm newbie in this, I can't find any root on this verison so can I use KDZ file on version VS98611a?
Thanks for your answers.
Click to expand...
Click to collapse
https://forum.xda-developers.com/verizon-g4/help/lg-g4-vs985-root-video-walk-threw-t3166078
dont know if itll work for u but heres a astart

New G4 owner, question on Root

HI, I have a H815P (on Nougat) got it for the great camera, and I know the bootloader cannot be unlocked but am I right to assume also that I therefore cannot root or flash any custom ROMs? thanks
I'm a recent H815P owner too and after searching for a few days I've come to the conclusion that it is impossible. That sucks for someone like me coming from a no-limits Galaxy S3.
Jostian said:
HI, I have a H815P (on Nougat) got it for the great camera, and I know the bootloader cannot be unlocked but am I right to assume also that I therefore cannot root or flash any custom ROMs? thanks
Click to expand...
Click to collapse
Zambiemambie said:
I'm a recent H815P owner too and after searching for a few days I've come to the conclusion that it is impossible. That sucks for someone like me coming from a no-limits Galaxy S3.
Click to expand...
Click to collapse
Refer to the following thread: https://forum.xda-developers.com/g4/general/lg-g4-100-root-success-directives-root-t3180586
Note: Your ability to downgrade to 5.1 with LGUP-NEW will depend on the anti-rollback version of your current kdz ... google it on how to find out or start by clicking on steadfasterX's signature in any of his threads - he has listed all currently known in one of his threads.
Jostian said:
HI, I have a H815P (on Nougat) got it for the great camera, and I know the bootloader cannot be unlocked but am I right to assume also that I therefore cannot root or flash any custom ROMs? thanks
Click to expand...
Click to collapse
Zambiemambie said:
I'm a recent H815P owner too and after searching for a few days I've come to the conclusion that it is impossible. That sucks for someone like me coming from a no-limits Galaxy S3.
Click to expand...
Click to collapse
It's possible but not public released yet.
See my signature for the PoC thread to keep updated
Sent from my LG-H815 using XDA Labs
steadfasterX said:
It's possible but not public released yet.
See my signature for the PoC thread to keep updated
Sent from my LG-H815 using XDA Labs
Click to expand...
Click to collapse
Hi the PoC thread doesnt mention the H815 though, or did I miss something?
steadfasterX said:
It's possible but not public released yet.
See my signature for the PoC thread to keep updated
Click to expand...
Click to collapse
I'm really looking forward to that.

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