[T-Mobile LG V10 General] jmichaels1982:
These are the steps that I took to finally get systemless root and xposed. Android pay works now. I thought I would share this. It took me over 5 days of many many wipes and restores. I will also discuss some of my phone quirks in here. The reason why I am discussing these quirks is to explain that every phone is very very unique and if people do not have enough experience, they will end up with very different results

Standard disclaimer: Not responsible for anything that goes wrong with your phone

I also would consider this to be moderate difficulty, its not really for beginners due to multiple pre reqs and terminology

I would consider this very early beta at best, sometimes xposed does not stick, so far I think I finally figured out how to make it stick with every reboot.

I- My phone:

I have V10_H901_V20J_Stock_Custom_2e-signed , so obviously I had to go through the pain of understanding that thread. If your phone is already on that rom , then you must have TWRP in place by now. That of course is a prerequisite.

II- Visit the following threads, Credit goes to all the developers there, I am merely putting it as a write up.

A- This is the main thread, honestly, didn't love the instructions there, hence why I am doing this.

http://xdaforums.com/android/software/mod-magisk-v1-universal-systemless-t3432382

you will need to download the following from that thread ( but I put in the links to the right files)

There is no need to place in any specific folder, I usually put every thing on my external SD

1- Magisk: http://xdaforums.com/devdb/project/dl/?id=19960&task=get

Place it anywhere you can easily access it.

Edit added 09/11/11: magisk controller app : http://xdaforums.com/devdb/project/dl/?id=19924&task=get

2- PHH systemless SU: http://xdaforums.com/attachment.php?attachmentid=3847928&stc=1&d=1471642336

PHH super user app to work with systemless root :

https://play.google.com/store/apps/details?id=me.phh.superuser

B: Xposed systemless thread: here is the main thread

http://xdaforums.com/xposed/unofficial-systemless-xposed-t3388268

1- Download Systemless xposed: xposed-v86.5-sdk23-topjohnwu.zip form : http://xdaforums.com/attachment.php?attachmentid=3847909&d=1471640756

2- download the xposed material design app to control xposed:

http://xdaforums.com/devdb/project/dl/?id=19668&task=get

Steps - This is what worked best for me, I have heard numerous times on the v10 stock rom thread that our roms come in with systemless root. I can never get that to work systemless. If you know a better way, feel free to share the knowledge.

1- Back up ! use TWRP, Here is quirk number one from my very special phone: TWRP restores fail if the phone is hot. They do not restore properly. Do what you need to do to keep your phone cool if you need to restore. I have tested this about 5-8 times in the past 3 days. If my phone is pre-cooled ( use your imagination ), it restores 100 % without missing apps or errors. If it gets hot, then I get app crashes, errors, and all sorts of corruption.

2- Uninstall xposed if you have it running on your device - THIS IS A MUST make sure you use the official uninstaller that came with your xposed version

3- unroot your phone. use SuperSU app to unroot your phone: Do restore the system boot when prompted, do NOT restore original recovery, you need twrp obviously.

4- Boot into recovery manually: Now I feel like this is most confusing part about LG phones, and its never really well written:

Power down the phone

hold the volume down

with the volume down being held ( do not let go) , press the power button, until the LG logo appears, as soon as that happens, let go for 1/2 second then press the power button again ( this whole time the volume down button should be pressed ). You will get two prompts of warning, if you are successful, about the device being erased, it will not get erased You will simply just boot into TWRP

5- Flash the following in order , do not queue, TWRP is finicky at best for our phones , never queue

- Magisk from step A - 1

-phh super user A - 2

6- reboot phone. Your phone is now systemless rooted, the root can be turned on/off on demand.

You will find magisk app on your phone, do not start , it will simply crash

you will need to install the PHH super user app from step A- 2 , this is a simple apk from the play store.

then you can mess with magisk if you would like, I will explain it's options later

7- Uninstall whatever xposed controlled app you used to have, install the material design xposed app controller from B-2

8- now that you have root, reboot to recovery, using whatever app you use to simple reboot into recovery (quirk alert: I can never find a way to include reboot to recovery from the power menu, no matter what mods I have)

9- flash systemless xposed from B -1 . wipe dalvik/cache 3 x , wait for your phone for 500 years to boot up

10- you are now systemless. go into the xposed app and check all the modules to re-enable them

11- VERY VERY IMPORTANT: xposed does NOT stick with simple reboots, soft reboot, or recovery reboot.

09/25/16 : update. Xposed now trips safety net. Even if it's systemless. Some reports also say Magisk will trip it. Sorry but this guide is now obsolete.