Develop Bugs

Rooting the H815: Should I unlock the bootloader or not?

I have received my new LG G4 H815 (EU) phone today and I definitely want to root the phone. Now I'm asking myself whether I should unlock the bootloader or not.
As far as I understand, there are two completely different options for getting root access to the device:
1. Register on LG site, officially unlock bootloader, install TWRP image via fastboot, install root via TWRP
2. Walk through the instructions in this thread:
http://forum.xda-developers.com/g4/orig-development/root-tmo-vzw-intl-variants-soon-root-lg-t3164765
According to the thread you should disable OTA upgrades after rooting it and there is always the possibility that LG patches this rooting method with future Android Upgrades. However, I do want to upgrade the Android system image from time to time (LG will probably provide an upgrade to Android 6.0 sooner or later). Will upgrading the Android system (without loosing root) be less problematic when I unlock the bootloader now? As far as I understand it so far, you can easily root it again after an upgrade if you have unlocked the bootloader. Is that correct? Can I still use OTA upgrades when the bootloader is unlocked and TWRP is installed? I don't mind running fastboot to reinstall TWRP after an upgrade but I don't really like to manually download each Android upgrade from shady mirror sites instead of using the official LG OTA updater.
I do know that unlocking the bootloader will void the warranty and that some Apps may refuse to work no an unlocked device. I'm ok with that and I want to have the phone permanently rooted and install updates (without loosing root) with as little trouble as possible.
Since unlocking the bootloader will wipe everything, I want to do it either now (before setting up the phone) or never. So what would you recommend?

TWRP and Root on a locked Bootloader - Android 6.0. Smartphone LG G4 h815

Hello, all very warmly on the forum
I am asking you with a very polite request for information whether TWRP Recovery is already available
which can be installed on a locked Bootlader in the LG G4 h815?
I currently have an Android 6.0 MM smartphone in it.
As described in the Google Play Store, the official recovery application is available for download
TWRP - there is no description in the description for it to be unblocked
bootloader.
https://play.google.com/store/apps/details?id=me.twrp.twrpapp

whitewolf1608 said:
Hello, all very warmly on the forum
I am asking you with a very polite request for information whether TWRP Recovery is already available
which can be installed on a locked Bootlader in the LG G4 h815?
I currently have an Android 6.0 MM smartphone in it.
As described in the Google Play Store, the official recovery application is available for download
TWRP - there is no description in the description for it to be unblocked
bootloader.
https://play.google.com/store/apps/details?id=me.twrp.twrpapp
Click to expand...
Click to collapse
With a locked bootloader, you need to install this one:
[TWRP][any G4][BL LOCKED] TWRP-in-FIsH for all LOCKED G4 devices by steadfasterX - it works a charm ... but ... you will need to downgrade to Android 5.1 and root your phone first. Note: You will not be able to install custom roms as long as your bootloader is locked.

sdembiske said:
With a locked bootloader, you need to install this one:
[TWRP][any G4][BL LOCKED] TWRP-in-FIsH for all LOCKED G4 devices by steadfasterX - it works a charm ... but ... you will need to downgrade to Android 5.1 and root your phone first. Note: You will not be able to install custom roms as long as your bootloader is locked.
Click to expand...
Click to collapse
Hello, thanks for your post
Write or has Android Oreo released in Official edition for LG G4 h815?
How much more is optimized Android Oreo from Android Nougat in the official edition in the non-official edition for
LG G4 h815?

whitewolf1608 said:
Hello, thanks for your post
Write or has Android Oreo released in Official edition for LG G4 h815?
How much more is optimized Android Oreo from Android Nougat in the official edition in the non-official edition for
LG G4 h815?
Click to expand...
Click to collapse
An Official Oreo edition for LG G4 h815 has not been released as far as I am aware, nor is it likely to be since very few LG G4's have even had a Nougat version release, let alone an Oreo release.
If you want Oreo you will have to unlock your bootloader and install a custom rom. Can't comment on stock Oreo vs Nougat optimization, nor can anybody else, I suspect as far as the LG G4 - you'll have to check the LG G4 Android development forums to get an idea from the custom rom versions being devloped - AOSCP or Lineage - both are not fully stable as yet though - Nougat versions are currently better as daily drivers.

sdembiske said:
An Official Oreo edition for LG G4 h815 has not been released as far as I am aware, nor is it likely to be since very few LG G4's have even had a Nougat version release, let alone an Oreo release.
If you want Oreo you will have to unlock your bootloader and install a custom rom. Can't comment on stock Oreo vs Nougat optimization, nor can anybody else, I suspect as far as the LG G4 - you'll have to check the LG G4 Android development forums to get an idea from the custom rom versions being devloped - AOSCP or Lineage - both are not fully stable as yet though - Nougat versions are currently better as daily drivers.
Click to expand...
Click to collapse
Hello, thank you for your answer. Currently which version of Android Nougat 7.0 is the best optimized? Send a link.

I'll ask, if you have H815 there's a high chance you can save your time and effort and just unlock it with official LG unlock method.
Sent from my LG-H815 using Tapatalk

Minto107 said:
I'll ask, if you have H815 there's a high chance you can save your time and effort and just unlock it with official LG unlock method.
Sent from my LG-H815 using Tapatalk
Click to expand...
Click to collapse
Do you want to record a video like you enter the twrp from the combination of power buttons by volume down? Please, write in this method did you make your LG G4 h815? > https://forum.xda-developers.com/g4/general/howto-complete-guide-to-unlock-twrp-t3370003
I was flashing this method from this link - but from the command in the recovery terminal it runs to a temporary one. The command for flashing enters the terminal, however, the twrp will not be taken from the combination of the power and volume down buttons. Therefore, write which application to flush root in Android MM 6.0? The application from the Google Play oficialna store to TWRP Recovery requires the root done earlier. I am asking you for your advice.

whitewolf1608 said:
Do you want to record a video like you enter the twrp from the combination of power buttons by volume down? Please, write in this method did you make your LG G4 h815? > https://forum.xda-developers.com/g4/general/howto-complete-guide-to-unlock-twrp-t3370003
I was flashing this method from this link - but from the command in the recovery terminal it runs to a temporary one. The command for flashing enters the terminal, however, the twrp will not be taken from the combination of the power and volume down buttons. Therefore, write which application to flush root in Android MM 6.0? The application from the Google Play oficialna store to TWRP Recovery requires the root done earlier. I am asking you for your advice.
Click to expand...
Click to collapse
So, you're saying that you have flashed TWRP to your boot partition and asking how to revert it back? Easiest way would be just to reflash ROM(it will overwrite boot partition) or you can download Titan kernel and flash it instead(download it on PC and use USB MTP to transfer file to G4). If you want to ask how to get to TWRP via key combo then I'll tell you it's quite simple after few times especially if you're good with using your G4 one handed. When phone is off press and hold both volume down and power, then when you feel vibration and see LG logo release power button(but keep pressing volume down!) and the after briefly a second hold both buttons again. If you succeeded factory reset prompt should appear. Then press yes twice and you're in TWRP(don't worry, nothing will be wiped, it's just how LG's bootloader work). I unlocked my G4 with official method like 1.5 year ago(there wasn't unofficial unlock back then) but I did a backup of my stock v20g software with relock possibility(in case of bootloop). Now you can relock officially with Nougat bootloader
Sent from my LG-H815 using Tapatalk

Problems with update on T-mobile

Recently I bought Moto Z2 force from America. Here is the link
Link moto z2 force
I am using it in Bosnia and Herzegovina now. Its unlocked on all networks but there are some problems with T-mobile app. It asks for OS update but when I start update it won't start and sometimes it freezes, and restarts phone.
Is is possible to remove somehow all those T-Mobile stuff or mayb to flash new custom rom??
What is your suggestion?
Is there some custom rom to flash it that ce be used normally, here on domestic mobile carriers?

bokibo said:
Recently I bought Moto Z2 force from America. Here is the link
Link moto z2 force
I am using it in Bosnia and Herzegovina now. Its unlocked on all networks but there are some problems with T-mobile app. It asks for OS update but when I start update it won't start and sometimes it freezes, and restarts phone.
Is is possible to remove somehow all those T-Mobile stuff or mayb to flash new custom rom??
What is your suggestion?
Is there some custom rom to flash it that ce be used normally, here on domestic mobile carriers?
Click to expand...
Click to collapse
There is no hope of trying to delete the T-Mobile apps and the thrid party apps from the device even with an unlocked bootloader and root access. The T-Mobile apps and other apps are on the OEM Partition of the device. When you delete them from the OEM partition, in my personal experience, you will not be able to boot normally. So, the only option is to disable the apps.
If you want to flash a custom ROM, which there are very few of here on XDA, you wilol need to unlock the bootloader and boot TWRP and flash the TWRP installer. Then you can move on to flash a custom ROM.

fast69mopar said:
There is no hope of trying to delete the T-Mobile apps and the thrid party apps from the device even with an unlocked bootloader and root access. The T-Mobile apps and other apps are on the OEM Partition of the device. When you delete them from the OEM partition, in my personal experience, you will not be able to boot normally. So, the only option is to disable the apps.
If you want to flash a custom ROM, which there are very few of here on XDA, you wilol need to unlock the bootloader and boot TWRP and flash the TWRP installer. Then you can move on to flash a custom ROM.
Click to expand...
Click to collapse
I hoped that answer would be to somehow delete T-mobile apps but as I knew they are part of OEM software this I what I expected.
Where can I find instructions how to unlock bootloader and flash TWRP so I could flash custom ROM? As I can see topic regarding Moto Z2 force is huge and there is section about ROMs, here but I cant find it.

bokibo said:
I hoped that answer would be to somehow delete T-mobile apps but as I knew they are part of OEM software this I what I expected.
Where can I find instructions how to unlock bootloader and flash TWRP so I could flash custom ROM? As I can see topic regarding Moto Z2 force is huge and there is section about ROMs, here but I cant find it.
Click to expand...
Click to collapse
This is a great guide on how to install TWRP and move toward custom ROM's...
https://forum.xda-developers.com/z2-force/how-to/guides-bootloader-twrp-custom-roms-root-t3805737
Sent from my Z2 Force using XDA Labs

Question Beginner with flashing official xiaomi rom on Mi 11 Lite 5G NE

Hello everybody,
I'm new on XDA and installing ROM on phones . I hope my english will be comprehensible.
I've got a Xiaomi Mi 11 Lite 5G NE.
I obtained it with my mobile subscription at SFR (a french provider).
I read on XDA (and on others websites) that the 2 last letters in the version of MIUI in my phone indicates if the ROM is an "official" ROM by xiaomi or if it contains a provider overcoat.
My phone seems to use a provider overcoat.
It has Miui Global 13.0.1 Stable version.
In the details of MIUI Version, it's wrote MIUI Global 13.0.1 Stable 13.0.1(SKOEUSF).
I understand, unless I am mistaken, that the ROM is an European ROM.
The "SF" at the end meaning SFR in my case.
I would like to replace my actual ROM by an official Xiaomi Rom mainly to get the updates faster.
So I have many questions :
How can I do a full backup of my phone to restore it in case of problem ? I read something about a Nandroid backup but I didn't understand everything about it. Is there a good tutorial somewhere to do it ?
I saw that I have to use Mi Unlock tool to unlock bootloader. If I don't do that, I will not be able to change the ROM. Am I wrong ?
If not, where can I download this tool to unlock. I found many sites and I feel lost to find the good one. Is this one is the good to use : https://en.miui.com/unlock/download_en.html ?
Do I need to use a tool like TWRP ?
After that, I have to download the ROM.
I found this one to install an European ROM : https://c.mi.com/oc/miuidownload/detail?device=1900401 in the Xiaomi 11 Lite 5G NE EEA Section on the left. Is it correct ?
To install this ROM, I understand i have to use a tool to flash it.
Where can I download the tool because I found many versions.
I think this one is the good but I'm not sure of that : https://xiaomiflashtool.com/download/xiaomi-flash-tool-20220507.
Finally I found this video (in French). It explains how to proceed to do this ROM changing but I'm not sure if it's the good procedure :
Thanks a lot for your help

Some answers
First, you will need to unlock Bootloader, process will take 168 hours (7 days). Same procedure for all Xiaomi phones, google to find how-to
Be aware that unlocking BL will trigger Factory reset on your phone (hence do the backup in advance)
You need BL unlocked to switch to EEA, and optionally also to install TWRP (Orange Fox or other custom recoveries), custom ROMs or just kernels, root (Magisk)
Following is a useful app to find Xiaomi ROMs for your device:
MIUI Downloader - Apps on Google Play
MIUI upgrade app for Mi users.
play.google.com
Attached is an older doc describing the Xiaomi firmware names
Android backup requires TWRP, hence already unlocked Bootloader.
There is a good app for backup-restore but it requires root (hence already unlocked BL and Magisk installed):
Swift Backup - Apps on Google Play
A simple, fast and smart backup solution for Android smartphones
play.google.com
For unlocking BL you will need MI account - with their account you can also do backup (open Settings and scroll to Mi Account).
Otherwise you have Google account backup...
When flashing with MiFlash, pay attention that you do not relock Bootloader - by default relocking is enabled.
If anything goes wrong and phone would not boot, ppl get bricked phones - since BL was locked, they cannot flash again to fix and they cannot unlock BL since phone does not boot, they have to seek for paid help from authorized EDL accounts
Official TWRP.me does not yet support Android 12. There is an Orange Fox recovery here on XDA that should work with your MIUI 13/A12 (I am intentionally on MIUI 12.5.8/A11 still)
But you don't need TWRP (for switching to EEA, even for installing Magisk if you would wish).
Backup with Swift app is more useful than And round backup in custom Recovery bcs in Swift you can restore only selected apps, etc (Nandroud backup restores everything from the moment when it was backed up)
Useful link:
Xiaomi Firmware Updater
The ultimate script that provides firmware packages for Xiaomi devices.
xiaomifirmwareupdater.com
Btw, for anything (even for unlocking BL) you will need ADB and Fastboot tools on your PC.
Download and install Minimal ADB and Fastboot (find its thread on XDA) or Google Platform Tools

@zgfg,
Thank you for your answer.
168 hours to unlock the bootloader ? It is very long.
So I'm not sure i want to try this if finally it could fail.
I've installed MIUI Downloader but which file(s) must I download : Recovery, OTA, Fastboot, each of them ?
I ever have a Mi Account.
I'm searching for a method very detailed (if it is possible or exist) to change the ROM, but honnestly I'm a little stressed about doing this operation.
I wouldn't brick my phone.

SebThi said:
@zgfg,
Thank you for your answer.
168 hours to unlock the bootloader ? It is very long.
So I'm not sure i want to try this if finally it could fail.
I've installed MIUI Downloader but which file(s) must I download : Recovery, OTA, Fastboot, each of them ?
I ever have a Mi Account.
I'm searching for a method very detailed (if it is possible or exist) to change the ROM, but honnestly I'm a little stressed about doing this operation.
I wouldn't brick my phone.
Click to expand...
Click to collapse
Google about 168 hours - that's Xiaomi measure to make it harder for resellers who buy phones in China, flash them with Global or EEA and sell worldwide
Recovery firmware is only for upgrading while staying with the same locale (Global to Global, etc).
For that you don't need unlocked Bootloader and they install through stock Recovery
To switch from eg CN to EEA, you need unlocked BL, Fastboot firmware and MiFlash

Ok.
Thanks for your answer.
Before starting anything I will try to search a lot of experiences of other owners who did that.
Maybe one day, i'll try

It's only 7 days. Start the unlocking BL process ASAP, during the week learn more and decide what you will do when you unlock BL
Better than to rush and brick the phone

OK. I wil try that.
Another question : to unlock the booloader it runs during 7 days night and days ?

SebThi said:
OK. I wil try that.
Another question : to unlock the booloader it runs during 7 days night and days ?
Click to expand...
Click to collapse
It takes 7 days
You have to 'use the phone', ie it must have SIM card and be turned on
You may turn it sporadically off but they don't allow that you eg buy ten phones, request unlocking Bootloaders with a single SIM for all of them, and then wait 7 days that you can unlock (change firmwares and sell them)
Please understand their point. I cannot tell you how many minutes the phone can be turned off daily or something.
Besides, if you google, you will find a lot about

I have one question regarding to the same topic. Lot of custom roms use recommend to use their own custom recovery for flashing the rom. After flashing the ROM, can another recovery be loaded into the device or can twrp or orange fox be used to flash custom roms even if they recommend to use their custom recover for flashing?
SebThi said:
Another question : to unlock the booloader it runs during 7 days night and days ?
Click to expand...
Click to collapse
It does not run continiously during the 7 days. You can open the mi unlock app, request to unlock BL. You will see a message telling you to wait for 7 days. Then you can unplug the phone and use it as normal. After 7 days, plug the phone back in and you will be able to unlock BL without problem.

I also have a Mi 11 Lite 5G NE Global with EU rom. I need to flash Taiwanese (TW) rom with mi dialer-contacts and also lock bootloader too? (Google wallet doesn't work with unlocked bootloader). Is it safe to do? I know you cannot flash CN phones with other region roms and then lock bootloader, they don't start and get bricked.

I found all possible combinations and their answers in this video and its comments below.

duellerg said:
I also have a Mi 11 Lite 5G NE Global with EU rom. I need to flash Taiwanese (TW) rom with mi dialer-contacts and also lock bootloader too? (Google wallet doesn't work with unlocked bootloader). Is it safe to do? I know you cannot flash CN phones with other region roms and then lock bootloader, they don't start and get bricked.
Click to expand...
Click to collapse
If u have EU phone and u flash TW version and after lock bootloader u brick ur phone. U must have unlocked bootloader. Its not true if u have unlocked bootloader u cant use GPay. I use and everything work. Just flash Xiaomi.eu Pixelos or other customrom with Safemet Pass

I managed flashing TW rom with the stock fastboot. I left it unlocked as I am not sure if I brick it doing so, although in YouTube video shows that you can lock it. Safetynet check suggests to lock bootloader and gpay doesn't work. If someone else hasn't tried it in Mi 11, I cannot trust the guy in YouTube. So the only way is to root and install magisk, but then I miss OTA updates which is something that I need. The phone belongs to my father.

If u lock bootloader with other rom u have bootloop and brick device. Old Xiaomi works but after 2016 or 2018 u cant lock.
Just search a Rom with TW lang and SafetyNet

Thank you my friend you were clear. I don't need TW language, I am Greek. I only needed mi dialer that has call recording. So I must install magisk and flash manually every miui rom update. I believe twrp isn't necessary, original fastboot will do flash magisk's patched boot.img . Can I flash updates without erasing my data every time?

Xiaomi.eu Rom have mi dailer with call recording. Also GPay work well and all apps Mi dont have ads.
Try it and u have OTA update
Based on China Stable / Weekly builds
3way reboot menu (in dev settings)
MIUI Contacts and Dialer
Removed ads in MIUI system apps
MIUI Dialer and Messages apps
Steps counter in Assistant screen
More shortcuts on left lockscreen
Wake up gestures for all devices
AI preloading option in MIUI Lab for all devices
Option to auto-expand first notification
Notifications priority settings
More edit options in Gallery app
Enabled MiDrive in File Explorer
Added landscape mode for SMS app
Sunrise/Sunset in the weather app
Google apps support integrated
Removed 5GHz region restrictions
Confirm dials from call logs
Morning report on alarm at morning
More apps supported for AOD notifications
More styles for AOD screen
Raise to wake gesture
AOD notification received animation
Tap fingerprint sensor to wake toggle
More Camera features
Double tap to lock screen
Battery AI scenes
Allowed disabling specific system apps
Importing theme .mtz from zhuti.xiaomi.com via ThemeManager
No useless Chinese bloatware apps
More free RAM due to less background processes
Mi Video, Mi Music, Mi Browser: No any useless Chinese content
No possibility to re-lock bootloader accidentally with flash any xiaomi.eu release
Added real 27 languages translation made by Official MIUI Fansites and MIUI Fans
Added EU T9 dialer support
Added charging sound switch
Optimized GPS settings for EU
Optimized Battery consumption
Optimized RAM consumption
Added GSMalphabet into SMS app options
SafetyNet passed by default (Google Pay)
Play Store Certified
Deodexed
Added automated tasks in Security app
Added game speed booster
Widevine L1 (for supported devices)
And more, and more made by our 10 years MIUI mods experience

Found what you proposed here https://xiaomi.eu/community/threads/22-10-26.67225/
I'll need twrp as the rom for lisa is in recovery format. I think I can manage installing it, sounds as the perfect solution for my needs.

Question Possible to go from 8 Pro + CN to EU version?

A bit sick of the UI but worried that since the 8 Pro + version is not available in Europe there may be issues. Is there anyone who tried this? Is it possible to install stock firmware from another region?

Ultimatum99 said:
A bit sick of the UI but worried that since the 8 Pro + version is not available in Europe there may be issues. Is there anyone who tried this? Is it possible to install stock firmware from another region?
Click to expand...
Click to collapse
I know this doesn't answer the first part of your question directly but it works the other way. I have installed CN on my EU model. Interesting that there's a few extra settings in the CN such as updating the GPU directly.
I'm on the latest CN firmware V2.26 and the battery is much better but probably due to all the battery saving default settings.

Ultimatum99 said:
A bit sick of the UI but worried that since the 8 Pro + version is not available in Europe there may be issues. Is there anyone who tried this? Is it possible to install stock firmware from another region?
Click to expand...
Click to collapse
Yes, you can change the payload_properties.txt in the rom of the region you want to flash. Change the text "nx729j_un" or "nx729j_**" for " NUBIA_SUBVERSION to "nx729j". Put the modified rom in the root directory and use local update. You do not have to unlock the bootloader to do this. If this does not work then you have to unlock the bootloader and flash the recovery of the rom in the region you want to change to and use sideload to flash the rom. However the second method might mess up your phone and you might not be able to boot your phone.

Ultimatum99 said:
A bit sick of the UI but worried that since the 8 Pro + version is not available in Europe there may be issues. Is there anyone who tried this? Is it possible to install stock firmware from another region?
Click to expand...
Click to collapse
nfc isnt working anymore after i try this on my UN (eu/un) phone

Ultimatum99 said:
A bit sick of the UI but worried that since the 8 Pro + version is not available in Europe there may be issues. Is there anyone who tried this? Is it possible to install stock firmware from another region?
Click to expand...
Click to collapse
yes possible: https://romprovider.com/red-magic-8-pro-nx729j-convert-global/

does any guide for RedMagic 8Pro from Global to CN rom? (I couldnot flash at Local Update in Setting)

leequan2009 said:
does any guide for RedMagic 8Pro from Global to CN rom? (I couldnot flash at Local Update in Setting)
Click to expand...
Click to collapse
for me works rm7 pro variant. reboot is also helpful in some cases. you need to try and try

leequan2009 said:
does any guide for RedMagic 8Pro from Global to CN rom? (I couldnot flash at Local Update in Setting)
Click to expand...
Click to collapse
In the payload_properties.txt, change the text "nx729j_un" for " NUBIA_SUBVERSION to "nx729j". Put the modified rom in the root directory and use local update. You do not have to unlock the bootloader to do this. If this does not work then you have to unlock the bootloader by go to bootloader and in the command window type
fastboot flashing unlock
Follow the direction to unlock the phone
You need to extract the payload.bin from the CN rom, then use payload dumper or fastboot enhance to extract recovery.img from the payload.bin. Go to bootloader and flash the recovery of the CN rom (fastboot flash recovery recovery.img)
Then reboot to recovery, choose English when you see "Wipe data" type
adb reboot sideload
Once your phone boots into sideload mode (When you see the two error line at the bottom of the screen) type
adb sideload NX729J-update.zip (this is the CN rom you want to flash)
Whether the transfer is successful or not you can wipe the data and reboot the phone. If the transfer is successful you will be in the CN rom, if not you should be back to your own Global rom. The sideload will load the new rom to the other slot so it should not change the current slot.

I'm terms of unlocking the bootloader all I have to do is go into fastboot mode (with OEM unlock, USB debugger selected on the phone of course) and type in the "fastboot flashing unlock" command and whatever next steps I'm supposed to do? Also I have not set fingerprint and or security pin on this phone yet and I've read that people are having issues with them after unlocking bootloader. Is your bootloader unlocked? If so are you having pin/fingerprint issues and if not was there anything you need to do to avoid the issue when unlocking the bootloader? TY!