Develop Bugs

Need help with bypassing bootloader unlock (EE) UK

Gone through the LG dev site, put in IMEI and Device ID, message pops up saying
the page at developer.lge.com says:
Unfortunately, your device (EE,UK) does not support unlocking the bootloader.
Is there a way around this, I would like to root my phone...and this whole "hold" over my android device isn't good at all.
EDIT, Sorry, i've got the LG G4 which is the phone in question, not the LG G3 as stated in my Sig.

CraigUK87 said:
Gone through the LG dev site, put in IMEI and Device ID, message pops up saying
the page at developer.lge.com says:
Unfortunately, your device (EE,UK) does not support unlocking the bootloader.
Is there a way around this, I would like to root my phone...and this whole "hold" over my android device isn't good at all.
EDIT, Sorry, i've got the LG G4 which is the phone in question, not the LG G3 as stated in my Sig.
Click to expand...
Click to collapse
I have the UK (EUR) version too from CPW on EE but was able to unlock. What's your software version under About Phone --> Software Info ?
Mine is V10c-EUR-XX

pcoulson said:
I have the UK (EUR) version too from CPW on EE but was able to unlock. What's your software version under About Phone --> Software Info ?
Mine is V10c-EUR-XX
Click to expand...
Click to collapse
Mine is V10B-234-30

It's official - there are a billion frickin versions of the LG G4 software out there and we don't stand a chance.
Sorry you can't unlock. Check the root thread for that.

pcoulson said:
It's official - there are a billion frickin versions of the LG G4 software out there and we don't stand a chance.
Sorry you can't unlock. Check the root thread for that.
Click to expand...
Click to collapse
Ouch... you serious?? nothing at all.. That's actually s**t.

Surely you'd be able to root using the method in the root thread? I'd hope so as I'm getting this phone on EE in a couple of weeks and was hoping it would be possible
Sent from my SM-N9005 using Tapatalk

CraigUK87 said:
Ouch... you serious?? nothing at all.. That's actually s**t.
Click to expand...
Click to collapse
sweeney_uk said:
Surely you'd be able to root using the method in the root thread? I'd hope so as I'm getting this phone on EE in a couple of weeks and was hoping it would be possible
Sent from my SM-N9005 using Tapatalk
Click to expand...
Click to collapse
Should be able to root using the method in the root thread with no issues.
As far as getting a G4 on EE, go via CarphoneWarehouse as you get a Euro unlocked device and not an EE branded device.

pcoulson said:
It's official - there are a billion frickin versions of the LG G4 software out there and we don't stand a chance.
Sorry you can't unlock. Check the root thread for that.
Click to expand...
Click to collapse
IIIIkoolaidIIII said:
Should be able to root using the method in the root thread with no issues.
As far as getting a G4 on EE, go via CarphoneWarehouse as you get a Euro unlocked device and not an EE branded device.
Click to expand...
Click to collapse
i think i got it a bit late... can't really take it back now and start again.
I've found a few rooting methods... but could someone point me in the right direction to the right thread, please =)

CraigUK87 said:
i think i got it a bit late... can't really take it back now and start again.
I've found a few rooting methods... but could someone point me in the right direction to the right thread, please =)
Click to expand...
Click to collapse
The low effort root method in G4 Original Android Development.
Do not try to absolve me by some quirk of quantum mechanics.

IIIIkoolaidIIII said:
Should be able to root using the method in the root thread with no issues.
As far as getting a G4 on EE, go via CarphoneWarehouse as you get a Euro unlocked device and not an EE branded device.
Click to expand...
Click to collapse
I would but I'm on a shared plan and CPW can't upgrade me so I'm stuck going to EE direct [emoji20]
Sent from my SM-N9005 using Tapatalk

sweeney_uk said:
I would but I'm on a shared plan and CPW can't upgrade me so I'm stuck going to EE direct [emoji20]
Sent from my SM-N9005 using Tapatalk
Click to expand...
Click to collapse
Dam that's a *****. I'm wondering if you could flash the KDZ of the EURO unlocked device and convert it from an EE device to an unlocked one. I know this used to be possible with Samsung device, this is my first LG (apart from a Nexus) so not fully up to speed on these things yet. May be worth investigating though.

IIIIkoolaidIIII said:
The low effort root method in G4 Original Android Development.
Do not try to absolve me by some quirk of quantum mechanics.
Click to expand...
Click to collapse
Ok found that,
right.... How on earth can I tell what version mine is?
does this low level root actually bypass the "not being able to unlock bootloader" ??
Sorry for all the questions, I have read up...just a bit cautious this time around.... never had this much trouble with rooting a device before.

CraigUK87 said:
Ok found that,
right.... How on earth can I tell what version mine is?
does this low level root actually bypass the "not being able to unlock bootloader" ??
Sorry for all the questions, I have read up...just a bit cautious this time around.... never had this much trouble with rooting a device before.
Click to expand...
Click to collapse
Yes it doesn't require the Bootloader being unlocked, tbh most questions you have will be answered in that forum, read through the first two posts. All images are there and how to find the right ones.

IIIIkoolaidIIII said:
Yes it doesn't require the Bootloader being unlocked, tbh most questions you have will be answered in that forum, read through the first two posts. All images are there and how to find the right ones.
Click to expand...
Click to collapse
Well, thank you my friend for the help...but as you can appreciate...it's an expensive phone, I'm safe guarding myself by asking people with more experience than myself. I'm sorry.

CraigUK87 said:
Well, thank you my friend for the help...but as you can appreciate...it's an expensive phone, I'm safe guarding myself by asking people with more experience than myself. I'm sorry.
Click to expand...
Click to collapse
If your worried about not picking the right version, then I would avoid proceeding with that method. As if it isn't one of the version in the OP, you need to change the commands too. Post a screenshot of your Software Info screen and I'll point you in the right direction.
But you need to read through both those posts before proceeding to understand what your doing.

IIIIkoolaidIIII said:
If your worried about not picking the right version, then I would avoid proceeding with that method. As if it isn't one of the version in the OP, you need to change the commands too. Post a screenshot of your Software Info screen and I'll point you in the right direction.
But you need to read through both those posts before proceeding to understand what your doing.
Click to expand...
Click to collapse
I've read through both posts a few times.. i have a feeling my version isn't there.

CraigUK87 said:
I've read through both posts a few times.. i have a feeling my version isn't there.
Click to expand...
Click to collapse
Can you post a screen of your hardware info to.

IIIIkoolaidIIII said:
Can you post a screen of your hardware info to.
Click to expand...
Click to collapse
Sure

CraigUK87 said:
I've read through both posts a few times.. i have a feeling my version isn't there.
Click to expand...
Click to collapse
As far as I can tell, you only have a carrier specific version of software and no actual hardware differences from H815 itself, which makes sense EE just using their own software (like the twats they are). This being the case you should be able to proceed with flashing the H815-10c image and gain root, this may also mean you can unlock the bootloader.
If the worst happens and you can't boot, you can just use a kdz image to revert to stock following the guide here:
http://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848
You can gain a stock KDZ with this url, replace 'YOURIMEIHERE' with your imei number:
http://csmg.lgmobile.com:9002/csmg/b2c/client/auth_model_check2.jsp?esn=YOURIMEIHERE

IIIIkoolaidIIII said:
As far as I can tell, you only have a carrier specific version of software and no actual hardware differences from H815 itself, which makes sense EE just using their own software (like the twats they are). This being the case you should be able to proceed with flashing the H815-10c image and gain root, this may also mean you can unlock the bootloader.
If the worst happens and you can't boot, you can just use a kdz image to revert to stock following the guide here:
http://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848
You can gain a stock KDZ with this url, replace 'YOURIMEIHERE' with your imei number:
http://csmg.lgmobile.com:9002/csmg/b2c/client/auth_model_check2.jsp?esn=YOURIMEIHERE
Click to expand...
Click to collapse
Well, thank you very much, sir. I really appreciate the help =) Shall try it out now... as for the bootloader...
LG specifically said on the dev site that my bootloader (EE)UK can't be unlocked,
I input my IMEI and Device-ID.. However, I expect you know way more than myself, So.. i'll stay in hope that you, sir..are right =)

US99121a custom recovery?

So i know most people are going to say to use the search feature, but i cant find any indisputable post that specifically talks about my model of phone. I have the LG G4 US991 on 21a. I bought it on amazon unlocked, and use it with AT&T. Its currently on 6.0. Im hoping that at a bare minimum there is a root method for this phone. Thanks for your help!

IgnitionIWNL said:
So i know most people are going to say to use the search feature, but i cant find any indisputable post that specifically talks about my model of phone. I have the LG G4 US991 on 21a. I bought it on amazon unlocked, and use it with AT&T. Its currently on 6.0. Im hoping that at a bare minimum there is a root method for this phone. Thanks for your help!
Click to expand...
Click to collapse
For root downgrade to LL. No root on MM for locked devices.
For downgrade check if you have anti rollback (search for the code of the secret menu) which avoids downgrading.
For a limited TWRP you need root (search for TWRP in FIsH)
.
Sent from my LG-H815 using XDA Labs

steadfasterX said:
For root downgrade to LL. No root on MM for locked devices.
For downgrade check if you have anti rollback (search for the code of the secret menu) which avoids downgrading.
For a limited TWRP you need root (search for TWRP in FIsH)
.
Sent from my LG-H815 using XDA Labs
Click to expand...
Click to collapse
Ive tried almost every secret menu code and the only one that seems to work is the IMEI one. All the others return connection problem or invalid MMI code.

IgnitionIWNL said:
Ive tried almost every secret menu code and the only one that seems to work is the IMEI one. All the others return connection problem or invalid MMI code.
Click to expand...
Click to collapse
you can look up HiddenMenuCall apk and normally itll get into the hidden menus pretty good
install apk go down to drm and click on it then qfuse im using it on my g5 it dont tell me which qfuse version but it does tell me that qfuse drive exist
click qfuse check
mine says qfuse board dont download nonsecure images
http://storagecow.eu/Xda/LG G5/Sprint LS992 GSM unlock/HiddenMenuCall_1.7.apk
if ures comes back postive for qfuse existance be careful with what you downgrade hardbricks may result

TheMadScientist420 said:
you can look up HiddenMenuCall apk and normally itll get into the hidden menus pretty good
install apk go down to drm and click on it then qfuse im using it on my g5 it dont tell me which qfuse version but it does tell me that qfuse drive exist
click qfuse check
mine says qfuse board dont download nonsecure images
http://storagecow.eu/Xda/LG G5/Sprint LS992 GSM unlock/HiddenMenuCall_1.7.apk
if ures comes back postive for qfuse existance be careful with what you downgrade hardbricks may result
Click to expand...
Click to collapse
Ok got it installed, and my anti-rollback version is 2. Im assuming thats a bad thing?

IgnitionIWNL said:
Ok got it installed, and my anti-rollback version is 2. Im assuming thats a bad thing?
Click to expand...
Click to collapse
Now that means u cant install any firmware less than 2. So now u need to find what firmwares are 2 or higher. So downgrade and root are prob out of the question. If u dg to a version 1. U can hardbrick

TheMadScientist420 said:
Now that means u cant install any firmware less than 2. So now u need to find what firmwares are 2 or higher. So downgrade and root are prob out of the question. If u dg to a version 1. U can hardbrick
Click to expand...
Click to collapse
Anyway to upgrade to nougat on the g4 currently? And what options do i have for firmwares with v2?

IgnitionIWNL said:
Anyway to upgrade to nougat on the g4 currently? And what options do i have for firmwares with v2?
Click to expand...
Click to collapse
im not familiar with your models firmware but im pretty sure nougats not released yet on the g4 should be soon though

I need some help downgrading/rooting my LG G4.

Hello amigos, just to clarify i'm new to XDA so lets get to it then shall we!
So I bought this LG G4 from a guy on eBay, and it basically just arrived today. So the weird thing about the device is, It has a Anti-Rollback Version 4. Ive personally never seen this especially in the UK. Isn't it just the US that's supposed to be effected by these issues???
Is there any way of getting around this or what ever?
Its on Android 6.0 and its the H815 variant, I've tried booting into the boot-loader and that doesn't work (Yes I've used ADB but that didn't work either I also used recovery which for some reason I can access but not the boot-loader ) This is the main issue. There is also something else that doesn't make any sense. The device has an update from LG, It downloads perfectly fine but when it goes to flash the update it just doesn't flash. It comes up with an error. That's all it says in the recovery, error. Yeah that's about it really. The phone works perfectly fine on 6.0 but I just wanted to see if one of the greight minds here could assist me with this issue or just upfront call me stupid for wasting my money on an old phone :laugh:.

Which H815 variant is it?
EU, USA, TR, Int'l?

LPCG7 said:
Which H815 variant is it?
EU, USA, TR, Int'l?
Click to expand...
Click to collapse
It looks to be the EU version to me. I cant be too sure though. Its running on the OPEN EU firmware though. (H81520D)

go to:
settings > about phone > hardware info

LPCG7 said:
go to:
settings > about phone > hardware info
Click to expand...
Click to collapse
Yes the model number is LG-H815. It doesn't say if its EU or INT or what ever.
Is this unusual?

Sileo2056 said:
Yes the model number is LG-H815. It doesn't say if its EU or INT or what ever.
Is this unusual?
Click to expand...
Click to collapse
That's on the page below. There it gives you software version....

mcduffie2010 said:
That's on the page below. There it gives you software version....
Click to expand...
Click to collapse
H81520D is the software version

you need to unlock the bootloader before accessing it first.
this is the only official way for so.
http://developer.lge.com/resource/mobile/RetrieveBootloader.dev
If I may ask to better assist you, what do you plan on doing exactly?

LPCG7 said:
you need to unlock the bootloader before accessing it first.
this is the only official way for so.
http://developer.lge.com/resource/mobile/RetrieveBootloader.dev
If I may ask to better assist you, what do you plan on doing exactly?
Click to expand...
Click to collapse
Firstly I plan on rooting and adding TWRP as I did on my old G3. I tried to use LG's method but it did not allow me to fastboot. When I used ADB it just well, restarted the phone. I used the command adb restart bootloader as it states on the unlocking site. I used administrative permissions. Whats unsual is, I can use adb restart recovery perfectly fine to get to the stock recovery.

The confusing thing for me is, the device has the antirollback version 4
Its the EU version of the H815. It makes no sense!!!!
I'm trying to figure out what could have caused this to happen mainly... The only version with antirollback version 4 is the LS991 ZVF... How is this even been done to this thing!? Its running on the H81520D firmware which 0 of them have the antirollback version 4 that i'm aware of. The bootloader is mysteriously inaccessible by anything I do! This is really bugging me now. Could this be a franken device?

Before proceeding further, check whether your device has SN 404 or other. It is found by removing your battery or checking on the box labels.

LPCG7 said:
Before proceeding further, check whether your device has SN 404 or other. It is found by removing your battery or checking on the box labels.
Click to expand...
Click to collapse
Nope it's sn 606....

Sileo2056 said:
Firstly I plan on rooting and adding TWRP as I did on my old G3. I tried to use LG's method but it did not allow me to fastboot. When I used ADB it just well, restarted the phone. I used the command adb restart bootloader as it states on the unlocking site. I used administrative permissions. Whats unsual is, I can use adb restart recovery perfectly fine to get to the stock recovery.
Click to expand...
Click to collapse
To begin with, I rooted mine by downgrading to LP stock rom as rooting MM is not quite easy using this link : https://forum.xda-developers.com/g4/help/how-downgrade-g4-h815-t3264864
Then I had FIsH twrp installed cause I couldn't unlock my BL using : https://forum.xda-developers.com/g4/development/locked-twrpinfish-locked-g4-devices-t3573048
>>ITS RISKY<<
Sileo2056 said:
The confusing thing for me is, the device has the antirollback version 4?
Click to expand...
Click to collapse
Secondly, yours has ARB v4. So there are some hardwork involved in finding a kdz that won't brick your G4 on flashing. As you say it is very much confusing. So do proceed ahead only after properly checking your informations and cross examining carefully.

LPCG7 said:
To begin with, I rooted mine by downgrading to LP stock rom as rooting MM is not quite easy using this link : https://forum.xda-developers.com/g4/help/how-downgrade-g4-h815-t3264864
Then I had FIsH twrp installed cause I couldn't unlock my BL using : https://forum.xda-developers.com/g4/development/locked-twrpinfish-locked-g4-devices-t3573048
>>ITS RISKY<<
Secondly, yours has ARB v4. So there are some hardwork involved in finding a kdz that won't brick your G4 on flashing. As you say it is very much confusing. So do proceed ahead only after properly checking your informations and cross examining carefully.
Click to expand...
Click to collapse
Many people are saying the H81520P KDZ file will work for me, apparently once I install it onto the device downgrading is pretty simple.
As for FIsH, eh... I cant figure it out at all. I was so confused by looking at the page for it, I was like eh...
EDIT: Every time I try to upload the KDZ to the device I get this. https://www.leonf.elhs.co/images/LGUP_05-01-18_11-50AM.png

Sileo2056 said:
Many people are saying the H81520P KDZ file will work for me, apparently once I install it onto the device downgrading is pretty simple.
As for FIsH, eh... I cant figure it out at all. I was so confused by looking at the page for it, I was like eh...
EDIT: Every time I try to upload the KDZ to the device I get this. https://www.leonf.elhs.co/images/LGUP_05-01-18_11-50AM.png
Click to expand...
Click to collapse
Installing FIsH is confusing at first...ask me more about it but with proper reading and carefully executing the steps you should be doing great:good:
This common error may be fixed by updating your LGUP DLL file. follow the first steps on https://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803

LPCG7 said:
Installing FIsH is confusing at first...ask me more about it but with proper reading and carefully executing the steps you should be doing great:good:
This common error may be fixed by updating your LGUP DLL file. follow the first steps on https://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
Click to expand...
Click to collapse
Hurah, we are getting somewhere. Im now getting flashing fail and its not restating the device with that DLL!

Sileo2056 said:
Hurah, we are getting somewhere. Im now getting flashing fail and its not restating the device with that DLL!
Click to expand...
Click to collapse
You followed the steps as said to the letter?

LPCG7 said:
Installing FIsH is confusing at first...ask me more about it but with proper reading and carefully executing the steps you should be doing great:good:
This common error may be fixed by updating your LGUP DLL file. follow the first steps on https://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
Click to expand...
Click to collapse
Yes i'm following the instructions to the letter. with LGUP. Still getting the error though.

is your phone restarting?

LPCG7 said:
is your phone restarting?
Click to expand...
Click to collapse
What happens is, follow the instructions on that LGUP thread that you sent me, I put the kdz in and restart lgup and then its on refurbish. I click start and the antirollback error appears on any KDZ I use apart from the H81520p_00_0314 which kicks out a Flash Fail error. Oh and thanks for helping me with this!

LG G4 (H815) Android Upgrade

Hello guys,
I am using an unlocked H815 in India (bought from ebay) which is running software version Android Lollipop. The software update check always shows "You have latest updates installed".
Is there any way I can upgrade the OS without bricking the phone or causing simlock.
Sorry if this is an already posted query.
Please guide me.

you need to study it ....

rotoko said:
you need to study it ....
Click to expand...
Click to collapse
Study what?

[email protected] said:
Hello guys,
I am using an unlocked H815 in India (bought from ebay) which is running software version Android Lollipop. The software update check always shows "You have latest updates installed".
Is there any way I can upgrade the OS without bricking the phone or causing simlock.
Sorry if this is an already posted query.
Please guide me.
Click to expand...
Click to collapse
Can i get some help.
Still didnt find a solution. Stuck on Lollipop while the G4 world moved through Marshmallow to Nougat.

[email protected] said:
Hello guys,
I am using an unlocked H815 in India (bought from ebay) which is running software version Android Lollipop. The software update check always shows "You have latest updates installed".
Is there any way I can upgrade the OS without bricking the phone or causing simlock.
Sorry if this is an already posted query.
Please guide me.
Click to expand...
Click to collapse
have you tried LGUP to flash a rom to marshmallow?

okadamikki said:
have you tried LGUP to flash a rom to marshmallow?
Click to expand...
Click to collapse
Hi,
Sorry for very late reply. Never thought someone would care to help after such a long time.
I never tried LGUP because I cant find the right ROM for my device. Hardware info page shows H815 while on adb it shows up as LGF500L.....(last time I checked F500L is korean variant).
Also the device does not have recovery mode. When trying to boot into recovery a red exclamation comes up with "No command" written.

[email protected] said:
Hi,
Sorry for very late reply. Never thought someone would care to help after such a long time.
I never tried LGUP because I cant find the right ROM for my device. Hardware info page shows H815 while on adb it shows up as LGF500L.....(last time I checked F500L is korean variant).
Also the device does not have recovery mode. When trying to boot into recovery a red exclamation comes up with "No command" written.
Click to expand...
Click to collapse
Sounds like it might be a 'frankenphone' - the only way to fully ascertain what the phone model actually is, is to open it up and see what is printed on the motherboard. Refer to this link on how to tear it down: https://www.ifixit.com/Teardown/LG+G4+Teardown/42705
You can also then use SALT to ascertain what the GPT compatability is - that will tell you what roms are safe to flash in order to upgrade.

sdembiske said:
Sounds like it might be a 'frankenphone' - the only way to fully ascertain what the phone model actually is, is to open it up and see what is printed on the motherboard. Refer to this link on how to tear it down: https://www.ifixit.com/Teardown/LG+G4+Teardown/42705
You can also then use SALT to ascertain what the GPT compatability is - that will tell you what roms are safe to flash in order to upgrade.
Click to expand...
Click to collapse
Can I manually install recovery(twrp or something) and change to a custom rom from there?
Will that be possible.

[email protected] said:
Can I manually install recovery(twrp or something) and change to a custom rom from there?
Will that be possible.
Click to expand...
Click to collapse
tutorial: https://forum.xda-developers.com/g4/general/howto-complete-guide-to-unlock-twrp-t3370003
Can you just install cpuz and see is it fake?

NikBos said:
tutorial: https://forum.xda-developers.com/g4/general/howto-complete-guide-to-unlock-twrp-t3370003
Can you just install cpuz and see is it fake?
Click to expand...
Click to collapse
As per CPU-Z ( I have attached screenshot of the same)
Model : LG H815
Hardware : p1
Board : MSM8992

[email protected] said:
As per CPU-Z ( I have attached screenshot of the same)
Model : LG H815
Hardware : p1
Board : MSM8992
Click to expand...
Click to collapse
CPU-Z will not be reliable in the information it provides you as it only provides the information that has been installed on it. As I stated, the only way to truly ascertain is to strip it down and see what is printed on the motherboard - it is not difficult and there are no shortcuts to be 100% sure - if you don't do it the way I suggested, you run the risk of hard-bricking your phone when you flash something not meant for your phone. If you doubt me, check with steadfasterX, recognized developer who know this stuff inside-out ...
---------- Post added at 03:30 PM ---------- Previous post was at 03:27 PM ----------
[email protected] said:
Can I manually install recovery(twrp or something) and change to a custom rom from there?
Will that be possible.
Click to expand...
Click to collapse
If your bootloader is actually unlocked, you should be able to - you should use the latest 'preview' version for the rom version you are planning to flash. Refer to this link: https://forum.xda-developers.com/g4/development/recovery-twrp-3-touch-recovery-t3442424
Note: The Thanks button at the bottom right of this post, is there for a reason. It is an XDA courtesy to use it when members are answering your questions or trying to help solve your issues.

sdembiske said:
CPU-Z will not be reliable in the information it provides you as it only provides the information that has been installed on it. As I stated, the only way to truly ascertain is to strip it down and see what is printed on the motherboard - it is not difficult and there are no shortcuts to be 100% sure - if you don't do it the way I suggested, you run the risk of hard-bricking your phone when you flash something not meant for your phone. If you doubt me, check with steadfasterX, recognized developer who know this stuff inside-out ...
---------- Post added at 03:30 PM ---------- Previous post was at 03:27 PM ----------
If your bootloader is actually unlocked, you should be able to - you should use the latest 'preview' version for the rom version you are planning to flash. Refer to this link: https://forum.xda-developers.com/g4/development/recovery-twrp-3-touch-recovery-t3442424
Note: The Thanks button at the bottom right of this post, is there for a reason. It is an XDA courtesy to use it when members are answering your questions or trying to help solve your issues.
Click to expand...
Click to collapse
Ok. Will try if flashing twrp is possible.
I will post an update after that.

[email protected] said:
Ok. Will try if flashing twrp is possible.
I will post an update after that.
Click to expand...
Click to collapse
Flashing through fastboot is not possible.....phone wont get detected in fastboot mode.

[email protected] said:
Flashing through fastboot is not possible.....phone wont get detected in fastboot mode.
Click to expand...
Click to collapse
Can somebody give me a link for the right kdz for my phone.
Current installed software version : H81510h (So I hope flashing it might revive the phone).
Note : Quick reminder, this phone is unlocked and using in India.

[email protected] said:
Can somebody give me a link for the right kdz for my phone.
Current installed software version : H81510h (So I hope flashing it might revive the phone).
Note : Quick reminder, this phone is unlocked and using in India.
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When you say 'unlocked' you are referring to carrier/sim unlocked I presume. If you were actually bootloader unlocked, you should be be able to flash TWRP in fastboot mode.
Look, I'll say it again, strip your phone down and find out exactly what is stamped on the motherboard. The last thing you want to do is try and flash a rom from a different model than you actually have.
Then look for a MM 1220x up to 1220z rom for the phone model you actually have and upgrade it with LGUP-NEW. Then proceed to unlock your bootloader. If it is actually an H815 European version you should be able to unlock it officially on LG's site. If it another H815 version etc., you will have to unlock it unofficially with steadfasterX's UsU method BUT you must be on MM to avoid issues when installing any custom roms from then on.
Don't take any shortcuts.

sdembiske said:
When you say 'unlocked' you are referring to carrier/sim unlocked I presume. If you were actually bootloader unlocked, you should be be able to flash TWRP in fastboot mode.
Look, I'll say it again, strip your phone down and find out exactly what is stamped on the motherboard. The last thing you want to do is try and flash a rom from a different model than you actually have.
Then look for a MM 1220x up to 1220z rom for the phone model you actually have and upgrade it with LGUP-NEW. Then proceed to unlock your bootloader. If it is actually an H815 European version you should be able to unlock it officially on LG's site. If it another H815 version etc., you will have to unlock it unofficially with steadfasterX's UsU method BUT you must be on MM to avoid issues when installing any custom roms from then on.
Don't take any shortcuts.
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Opened up the phone and found that it is H815 after all.
So can somebody now guide me to which rom/kdz I should use.
[Currently on Lollipop..SW Version : H815 10h]

[email protected] said:
Opened up the phone and found that it is H815 after all.
So can somebody now guide me to which rom/kdz I should use.
[Currently on Lollipop..SW Version : H815 10h]
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Here's a good site to download firmwares from: https://lg-firmwares.com/lg-h815-firmwares/firmwares/
Your looking for an H81520 with the latest alphabetical letter ... You'll have to decide on the one you want to try installing.

sdembiske said:
Here's a good site to download firmwares from: https://lg-firmwares.com/lg-h815-firmwares/firmwares/
Your looking for an H81520 with the latest alphabetical letter ... You'll have to decide on the one you want to try installing.
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Thanks for the link.
So I may download kdz with H815 20 with latest alphabet (and no need to look particularly for H815 20h right).

[email protected] said:
Thanks for the link.
So I may download kdz with H815 20 with latest alphabet (and no need to look particularly for H815 20h right).
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Correct. You will not find a 20h as the lower letters are used for previous android versions, higher letters for newer versions.
You are forgetting the 'Thanks' button at the bottom right of the posts - it's a good habit to get into ...

sdembiske said:
Correct. You will not find a 20h as the lower letters are used for previous android versions, higher letters for newer versions.
You are forgetting the 'Thanks' button at the bottom right of the posts - it's a good habit to get into ...
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Oops..my bad. Thanked all the replies now.
Will update after flashing rom.

Will my H812 have less problems on lollipop?

This phone was given to me with marshmellow and im having the issue of not being able to update google play service among other things. the other issues im having might be the effect of the google play service. i just wanted to know if its worth attempting the downgrade on lollipop

shatheone said:
This phone was given to me with marshmellow and im having the issue of not being able to update google play service among other things. the other issues im having might be the effect of the google play service. i just wanted to know if its worth attempting the downgrade on lollipop
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Depending on the underlying issue, you may still encounter the Play Services issue on Lollipop as you have on Marshmallow.
First, see if you can work the issue out on your current system.
- Delete cache and Data on Play Services.
- reset app preferences and reset default apps in the menu in the Apps folder in Settings.
- delete your Google account and re-install it.
- use LGUP-NEW to reinstall your Marshmallow rom (H81220). Check out this site for some H812 stock roms:
https://lg-firmwares.com/lg-h812-firmwares/
scroll down to the firmwares list and install the correct stock kdz - carrier and version
You can downgrade to Lollipop (H81210) using LGUP-NEW - frankly I haven't noticed a lot of difference between them but does have the current advantage of being rootable. Some members report better battery life but you will lose some security updates.

sdembiske said:
Depending on the underlying issue, you may still encounter the Play Services issue on Lollipop as you have on Marshmallow.
First, see if you can work the issue out on your current system.
- Delete cache and Data on Play Services.
- reset app preferences and reset default apps in the menu in the Apps folder in Settings.
- delete your Google account and re-install it.
- use LGUP-NEW to reinstall your Marshmallow rom (H81220). Check out this site for some H812 stock roms:
https://lg-firmwares.com/lg-h812-firmwares/
scroll down to the firmwares list and install the correct stock kdz - carrier and version
You can downgrade to Lollipop (H81210) using LGUP-NEW - frankly I haven't noticed a lot of difference between them but does have the current advantage of being rootable. Some members report better battery life but you will lose some security updates.
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thanks for the reply, i actually did all of those things, including a factory reset. i will try to reinstall using lg up, maybe something in the stock image got corrupted? i learned that even if my phone boot loops, it wont be repaired as the serial number is out of range. so i might hold on to it until theres a good custom available

shatheone said:
thanks for the reply, i actually did all of those things, including a factory reset. i will try to reinstall using lg up, maybe something in the stock image got corrupted? i learned that even if my phone boot loops, it wont be repaired as the serial number is out of range. so i might hold on to it until theres a good custom available
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Yes, very possible that something got corrupted. Definitely try a re-install of your stock kdz with LGUP-NEW.
If you haven't checked out steadfasterX's bootloader unlock thread, you will have to in order to install any custom rom with some assurance of success:
https://forum.xda-developers.com/g4/general/bl-unlock-unlock-bootloader-proof-t3648288
You might as well get started now as it won't be long before he publishes. You will have to install his SALT program and create a backup before proceeding to unlock your bootloader preparatory to installing any custom rom:
https://forum.xda-developers.com/g4/general/tool-salt-lg-revolution-t3717864

sdembiske said:
Yes, very possible that something got corrupted. Definitely try a re-install of your stock kdz with LGUP-NEW.
If you haven't checked out steadfasterX's bootloader unlock thread, you will have to in order to install any custom rom with some assurance of success:
https://forum.xda-developers.com/g4/general/bl-unlock-unlock-bootloader-proof-t3648288
You might as well get started now as it won't be long before he publishes. You will have to install his SALT program and create a backup before proceeding to unlock your bootloader preparatory to installing any custom rom:
https://forum.xda-developers.com/g4/general/tool-salt-lg-revolution-t3717864
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i couldnt get LG up to recognize my phone even after taking out the battery, so ill have to find another usb cable and try that. i see two different kdzs for my software version so ill have to research the correct one. and im not planning one unlocking the bootloader until theres a better way. id sell it before risking a brick

shatheone said:
i couldnt get LG up to recognize my phone even after taking out the battery, so ill have to find another usb cable and try that. i see two different kdzs for my software version so ill have to research the correct one. and im not planning one unlocking the bootloader until theres a better way. id sell it before risking a brick
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IF, you'd actually read steadfasterX's thread and in particular his latest update (last page on the thread, currently) ... you would realize there had already been a proof of a successful unlock of an H812. I suspect your phone has been screwed up by somebody who didn't know what they were doing in the first place. No one has done more work in this area and had more successes than steadfasterX - good luck for waiting for a better way or getting much trying to sell it - check ebay and see the prices - LOL.

sdembiske said:
IF, you'd actually read steadfasterX's thread and in particular his latest update (last page on the thread, currently) ... you would realize there had already been a proof of a successful unlock of an H812. I suspect your phone has been screwed up by somebody who didn't know what they were doing in the first place. No one has done more work in this area and had more successes than steadfasterX - good luck for waiting for a better way or getting much trying to sell it - check ebay and see the prices - LOL.
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i didnt mean any disrespect, but the process is still in alpha state. this is my only phone currently so i dont want to risk bricking it. i have no reason for unlocking bootloader when there isnt enough rom support to justify doing so

shatheone said:
i didnt mean any disrespect, but the process is still in alpha state. this is my only phone currently so i dont want to risk bricking it. i have no reason for unlocking bootloader when there isnt enough rom support to justify doing so
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The risk of bricking your phone has been minimized with steadfasterX's process - he has had a couple of successful unlocks of an H812 now and when he publishes it for the public, the risk will be minimized as much as it can be in any unlock case.
With respect to your phone not being recognized by LGUP-NEW. Make sure you have installed the LGMobileDriver_WHQL_Ver_4.2.0 available for download from the US LG site - the Windows driver will give you problems.

sdembiske said:
The risk of bricking your phone has been minimized with steadfasterX's process - he has had a couple of successful unlocks of an H812 now and when he publishes it for the public, the risk will be minimized as much as it can be in any unlock case.
With respect to your phone not being recognized by LGUP-NEW. Make sure you have installed the LGMobileDriver_WHQL_Ver_4.2.0 available for download from the US LG site - the Windows driver will give you problems.
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well i wouldnt care doing it if there was more rom support, i dont see a point in unlocking at this point. if im missing a benefit of unlocking right now, enlighten me. and thats the driver i already have installed

shatheone said:
well i wouldnt care doing it if there was more rom support, i dont see a point in unlocking at this point. if im missing a benefit of unlocking right now, enlighten me. and thats the driver i already have installed
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One benefit might be fixing your screwed up phone. Still didn't read the OP I guess as you were advised to in steadfasterX's bootloader unlock thread. Here's an idea ... before making summary judgements with little or no knowledge, perhaps you should check with the member that is sited in the "proof" for the H812 and post your questions there for the Roms he has tried. My understanding was that he was on Lineage for Nougat - the most popular downloaded custom rom for .... are you ready ... the H815/H811 - here's an idea ... why don't you check out ALL the roms that are for the H815/H811 in the Android Development section ... hmm ... really?

sdembiske said:
One benefit might be fixing your screwed up phone. Still didn't read the OP I guess as you were advised to in steadfasterX's bootloader unlock thread. Here's an idea ... before making summary judgements with little or no knowledge, perhaps you should check with the member that is sited in the "proof" for the H812 and post your questions there for the Roms he has tried. My understanding was that he was on Lineage for Nougat - the most popular downloaded custom rom for .... are you ready ... the H815/H811 - here's an idea ... why don't you check out ALL the roms that are for the H815/H811 in the Android Development section ... hmm ... really?
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if you took 10 seconds, you would see i actually posed in that thread. and all they did was direct me to the OP which says nothing about lineageos working for h812, or that the h815/ or h811 roms work for this variant. all it says is that i can flash nougat based roms. so the thread isnt too helpful, im not sure why you think it is.

shatheone said:
i didnt mean any disrespect, but the process is still in alpha state. this is my only phone currently so i dont want to risk bricking it. i have no reason for unlocking bootloader when there isnt enough rom support to justify doing so
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Hey man, i'm agreeing with you for most of this...
I'm also not going to risk anything until 10 H812 users have successfully unlocked bootloader and flashed a custom rom (one thats intended for h815 or h811) with steadfasterx's method. Maybe you can flash H815 custom roms once the bootloader is unlocked... but just to be safe, let's flash other stock carrier firmwares in the meantime...... in the end no matter what anyone says, its your phone at risk...
Member TheLatios381 and I were asking same question here:https://forum.xda-developers.com/g4...10-q2-2017-t3567402/post75742903#post75742903 because no answer to our question on steadfasterx's thread...