LG G3 D855 only rooted, I want to unroot update and root again

I've rooted some months ago my D855, I rooted it only because I want to write on the SD and use some software that requires root. Since 1 month my G3 says to me that there is a google patch that increase the usability. I'd like to update, but when I try to do this it says to me that rooted devices cannot be updated.
Then I'd like to unroot my device, update, and then root it again, but I'd like to do this without miss my data. How can I do? Some hint?

Stable LG G3 D855 Rom

Soo.... I have JOINED the G3 bandwagon!!!

I purchased a G3 , rooted it , installed TWRP.

Now I need a very stable rom but Im having difficulty picking as I dont understand whats compatible with my phone.

I have a LG G3 D855

Software is VER20U-EUR-XX
Im on android 5.0 stock.

LG G3 D855 GOLD Hissing problem

I am experiencing a hissing problem when I put my earphones into the G3 .
Anyone got any fixes for this ?

My G3 isnt rooted or got a custom rom , its stock because I have no idea how to root it and install a custom rom.

Thanks for the help guys!

G3 D855 Download Mode Problem

Hello all,

I have downloaded CM 12.1(Lollipop 5.1 09-10-2015) to install. Then I tried recovery mode, got secure boot error. I don't remember the page, but from here in xda, I found some solution, which I entered some codes to code terminal involving aboot.img. Somehow it worked and I used TWRP to install CM 12.1. It works fine.

Then I wanted to go back to stock, downloaded LGFlashTool. Problem starts here. When I tried to enter download mode(volume up) it installed the driver to pc. Then my phone went to download mode, but on top of the screen there was "Secure boot error" message. I looked into driver installing at first and it was qhsusb_bulk.

I have searched on xda and over the internet then, but I didn't find a solution. All the solutions for completely gone G3s.

To sum up, my problem is I can't go back to stock ROM because of the secure boot error in download mode. TWRP recovery works, I can use my phone with CM 12.1 Nightlies Android 5.1 but I can't go back to stock ROM since download mode is not working(secure boot error). I have .kdz file, and now downloading 2.1 GB tot file(not sure where to use). I also have bootdiag, which may be a solution.

I really want to fix it and go back to stock. Any help appreciated.

Thanks in advance!

Flashing KitKat on my Lg G3 D855 via TWRP?

Is there any way to flash kitkat on my phone (running CloudyG3 2.5) because i am getting dreaded battery life, no more than 3 hours with minimum use and only 45 minutes on gaming?

Is there any custom rom based on stock that i can revert to? I dont want to lose root and all my data either.

Any help will be appreciated. Thank you. :)

LG G3 D855 - Stuck on Logo SOMETIMES

Hey guys, i was able to root my LG G3 yesterday successfully (was kind of surprised at how easy it was actually) using the program featured here: http://www.qbking77.com/how-to-root/...-all-variants/ (one click script).
I used the original cable that came with the phone, and while on windows 8.1

Everything went fine, my primary purpose was to root so that i can dial down the resolution of the phone. did that too without a problem (was able to switch resolutions and DPI a few times). it's only when i tried to download and install some xposed modules when everything went south. i only tried installing the g3 tweakbox, didnt even try to change any settings yet and then i experienced a problem.

Everytime i reboot, i get stuck on the LG logo. I can hear everything booting up fine (if i insert the cable, i can hear the charging sound, or if i do my password correctly, i can hear the confirmation sound etc.) and it stays there.

The only way i was able to fix things was to do a factory reset..
strange thing is that this time, whenever i try to adjust my device resolution, i get stuck on the LG logo on boot again (which used to work out without a problem).

Any ideas guys?
* only reason i created a new thread for this was that i looked around and other that had this problem had really different situations as to how they ended up getting stuck in the LG logo.

Marshmallow 6.0.0 D855 testing (for real)

As promised, this is the rom builded with marshmallow aosp sources 6.0.0_r1
1. i am not resposible for any damage!! BECAUSE ROM IS NOT BOOTING AT ALL THIS MEANS ONLY LG LOGO
2. backup your rom on recovery
3. wipe / factory reset
4. install rom
5. reboot and look your phone while it doesn't boot :)
the link is this https://mega.nz/#!0oFTXBDR!7Dzo0yFj3...eN4cxUgkpc7hqA
just in case i put here the M Gapps here http://files.oceighty.co/gapps/benzo...006-signed.zip

builded with my device tree :) you can find it here https://github.com/manups4e

SO.. the main problem is GRAPHICS as i already said
i just builded with stock aosp and no modifications.
the problem is not about graphics libraries... but boringssl.. it changes everything about adreno blobs, since our old libs give unknown symbols error (referring openssl and not boringssl) and using hammerhead 6.0 blobs in our device seems to need a library that hammerhead 6.0 doesn't use: "libsc_a2xx.so" (i don't understand why) and.. using 5.1.1 version of that lib is causing fatal error. in other words i don't know how to make graphics work :'(
Surely CM team will be faster then me to fix everything ahahahah :) but for now enjoy a non functional marshmallow rom :)
you can see my logcat here :)

Attached Files

log.txt - [Click for QR Code] (223.9 KB)