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/o...ot-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?

What's the difference between the H815 and the H815L

Hello, I'm the owner of the H815L (official Israely version) variant for about a month. The only differences that I have noticed between the H815 and the H815L are the bootloader and some minor change in the LTE network (for the IL network). But basically I infer that they are the same in hardware and software (expt the things bellow). So my question is to know the differences between those two variants because I would like to install TWRP on it and also CM 12.1 and maybe some custom kernel. So I thought that if there's not much difference between those two models maybe I could install on my device those versions for the H815 (because there won't be much support for this model).

Can you help me with this and tell me the differences and if could do the actions that available for the international version?
Thanks

7 HD 4.1 [H815 All] [V10E] [29.Sept.2015][FF/TWRP]

7 HD 4.1 Xposed edition (read all changes)

In version 4.1 added / fixed:

- Xposed updated and framework (0.74)
- Updated plugin for Xposed
- Added G4 TweaksBox!
- Added TAction! by S3V3N Mod
- New settings for DeepSlee
- Added new APK for 32 & 64 bit:

* Google Search
* Google Now
* Google +
* Google Drive
* Google WebView
* Google GMSCore
* Google YouTube
* Google Search
* Google GMail
* Hangouts
* Google Maps
* Google Music
* Google Chrome
* Google WebView
* Google Play (shop)

- Added LG QPair
- Modified entries build.prop
- And many other smaller fixes.

Base system Full ODEX (hence, very high stability and speed)
Base V10E
Dial-V10E
Kernel V10E
Cust V10E - modified by my person - S3V3N

Icons in SystemUI - thanks to @Kickoff
AOSP signal cluster in SystemUI - thanks to @Skin1980

* Modified Launcher LG
- Unlock option - add a widget for Smart Biulletynu - S3V3N
- Addition to the main menu QMemo - S3V3N

* Modified SystemUI
- SystemUI is susceptible to all THEME of Kickoff'a;)
- The addition of the quick lock screens (slump in the upper left corner screen) - S3V3N

* Modified framework resolution pictures and lge-res
- Adding Xposed + framework
- Add the navbar 30dpi (in the future more options) - S3V3N
- Adding enable dual Dual View window (hold down the button longer back) - S3V3N
- Added new effects for lock screen - S3V3N

* Modified camera
- Added FHD video recording at 60 frames per second - S3V3N
- Added option for the front camera panorama - S3V3N
- Modified save JPG images to 100% quality - S3V3N

* Other modifications
- Added Mini View (to facilitate work / phone service with one hand) - S3V3N
- Adding BusyBox'a
- Adding SQLite3
- The addition of scripted for saving battery - S3V3N
- Modified bulid.prop (WiFi, DeepSleep and others)
- Unlock all applications for Dual View - S3V3N
- Adding applications 7 Custom Settings - S3V3N
- Adding new APP for Xposed
- Remove unneeded applications
- Update SuperSU to 2.49

........... and many other less significant changes


Download : 7 HD 4.1


Credits:

Thanks @Chainfire
Thanks @thecubed

XDA:DevDB Information
7 HD Rom, ROM for the LG G4

Contributors
S3V3N
ROM OS Version: 5.1.x Lollipop
ROM Kernel: Linux 3.10.x
Based On: Stock Base

Version Information
Status: Stable
Current Stable Version: V10E
Stable Release Date: 2015-09-29

Created 2015-07-10
Last Updated 2015-09-29

Finally H815 V10c-SEA-xx

Finally H815 International updated to V10c-SEA-xx through LG Bridge software update 1.78GB size.
So far touchscreen has improved...

Sent from my LG-H815

(Q) How to Re-Lock the LG G4 (H815) ?

Hi everyone,

I was wondering how does one can relock the bootloader, many people say it's impossible, but I'm pretty sure there is a solution.

Looking into the partition table to delete the unlocked status to locked status...

I saw in a fastboot mode with this command "fastboot erase unlock" and this cmd return "cannot erase this partition in unlocked state"

So i don't know at this point.

If anyone can help me it would be nice. :)

Best Regards. Aize147.

I have the H815, it says the network code is "SEA"?

Okay so I want to root my phone but I checked on imeidata what H815 variant it was and under Network Code it says SEA. So what exactly is that? I googled it but it didn't really come up with anything related to the phone.

Also, is this variant even rootable? I hope so, I want the cool stuff. D:

It also says SW Version : H81510B_00, carrier says ARROW. If any of this is relevant I have no clue.

[Q] LG H815 - EUROPE OPEN VDZ and US Firmware

Hello. I you can see I'm new to the forums and I'm also new to my LG G4, which happens to be the Taiwanese variant of the H815. I love the phone so far, but I'm a bit bummed that the bootloader can't be unlocked on this model. So I have two questions about this.
If I were to flash the EU Open VDZ, could I unlock my bootloader then?
A lot of the settings are geared towards Chinese/Taiwanese markets. Is there a US H815 stock firmware, or should I use a European version? And what number is the US H815 firmware version so I can go ahead and download it.

Thanks in advance.

P.S. A U.S. firmware should fix most things for me, correct?