Overall the Android 6.0 M is smooth and major features are working fine but as it’s an initial build so you may experience some bugs but don’t hesitate just go ahead and flash the Android 6.0 M firmware ROM on your LG G3 D850, D855 and D858HK.
How to install Android 6.0 Marshmallow on LG G3 D850, D855 and D858HK
Disclaimer: This tutorial includes multiple operations which includes, Installing Custom ROMs. Follow the guide on your own risk, we are not responsible if you brick or damage your device however the chances of bricking a device are rare but you have to pay full attention on the complete guide to avoid any issues and difficulties while performing any of the above mentioned operation.
Please ensure your phone battery should be charged at minimum 80%
Download and install latest USB drivers
Your device should have a working TWRP recovery installed.
Download Android 6.0 Lollipop build specified for your LG G3 from the below provided links
Download Android 6.0 Marshmallow ROM
Process to install Android 6.0 Marshmallow on LG G3
Turn of your device and boot into custom Recovery menu by the hardware keys combination or using any third party app (Mostly found in Play store).
Once your device enters into recovery, create a Nandroid backup of your device or follow our guide to create a Nandroid backup (this will create a backup of your complete device including current firmware) if something goes wrong you can restore your previous firmware.
Once the Nandroid process completes, navigate and select wipe data/factory reset.(this will erase your data)
Now it’s the time to flash the Android 6.0 M ROM on your device. Choose “install zip from sdcard” >> choose zip from sdcard & navigate to the folder in which you have copied the custom ROM.zip file and select it.
Select “yes” to confirm install, wait for a few minutes till the file is completely installed in your device.
Once completed, reboot your device.
If your device is taking longer then 7-10 minutes then follow this guide to to fix this issue
You can also: Install Android 5.1.1 Lollipop on LG G3
That’s it! You have successfully installed Android 6.0 Marshmallow on your LG G3 D850, D855 and D858HK and experience the latest features of Android 6.0 M custom ROM on your device. If you have any query feel free to contact us by posting your queries in the below provided comment section. Follow us on Facebook/Twitter/Google+ for future update.