How to root Lg k8 with twrp

I know everybody using Lg-K8 k350k/k350z/k350n or any other k350 is suffering for the cannot root issue. there are thousands of posts about how to root lg k8. but after you try to root, finally your device bricks.
               So here is a fix. Try the below method. (Links are given) its easy and simple. just 4 steps.

1. copy zip files to sdcard or USB-OTG
2. unlock bootloader (this will reset the device)
3. flash recovery(twrp) ( this will avoid brick )
4. install zips.

Note-you can watch my video here. but unlocking bootloader isn't showed in the video

Explained:-
 
1.Copy zip files to sdCard or USB-OTG

*first of all you have to copy SuperSU.zip and rce_univ.zip
    rce_univ.zip - this zip is use to change the compression type of boot partition. lg k8 is lz4. SuperSU needs gz compression type to install. so rce_univ.zip changes the compression type.
download link :- http://www.mediafire.com/file/ab20m1z2hjav3aq/rce_univ.zip

   SuperSU.zip - this zip will ROOT your device.
   download link :- http://www.mediafire.com/file/m46ygn3maoneyj1/SuperSU-v2.79-201612051815.zip

2. Unlock Bootloader

* you need this to unlock your bootloader. for this you will need adb,fastboot tools.(download here).

i. extract the zip given in the link above.

ii. goto the extracted directory and press Shift + right click.  then select Open command window here this will open cmd in the specified directory. (you can use 'cd' and change directory also to get into the directory by cmd)

iii. now connect the device to pc via usb and turn on developer options, USB debugging, Enable-OEM unlock(if exists) on your phone.

iv. now reboot the device to bootloader(fastboot mode) by entering 'adb reboot bootloader' in cmd.

v. then enter 'fastboot devices'. this will show you the device you connected. if it doesn't. then download and install the USB driver for lg.and goto device manager and select the driver manually.

vi. to check if the bootloader is already unlocked. enter 'fastboot getvar all'. if your device is bootloader unlocked, you can see in  the output, (bootloader) unlocked : yes. if it's (bootloader) unlocked : no. then you have to unlock the bootloader

vii. enter 'fastboot oem unlock' to unlock bootloader. doing this will give a prompt in your device asking to unlock the bootloader. give yes by pressing the volume up button. Then restart the device by removing the battery. this will reset your device.

viii. after resetting the device again goto developer options and enable usb debugging. then again reboot to fastboot by 'adb reboot bootloader'

ix. check the bootloader is unlocked. 'fastboot getvar all'

x. if the bootloader is unlocked, then we can move to the next step. so turn on the device again by removing the battery;

3. flash recovery

*this is the most important thing on rooting the device. this will avoid your device brick. download k8twrp.img and duplicate the file. then rename one file to "recovery.emmc.win". then copy it to yourSD/TWRP/recovery/.
*then again goto fastboot mode by 'adb reboot bootloader'. then 'fastboot boot twrp'. this will enter your device into the twrp recovery.
*cancel the password and slide the bar to continue. then select restore.click on select storage and choose sdcard and hit ok. then choose the recovery folder. tick Recovery and slide the bar to start flashing recovery. when its done go back to the main menu and select reboot > reboot recovery.

** when you reboot to recovery it will give an error 'your device is corrupted an cannot be trusted' with an exclamation mark. just wait and it will pass and restart your device to the system.
*now the recovery is flashed. now we can install zips without having a device brick.

4. installing zips.

* after your device started type 'adb reboot bootloader' then 'fastboot boot k8twrp.img'. this will take you into the twrp recovery. then goto install, select storage and select sdcard. first find rce_univ.zip and install it.(just click and slide the bar)
* when its done go back and install SuperSU.zip.(just click and slide the bar)
* after SuperSU installed again install rce_univ.zip.(just click and slide the bar)
* when done, reboot system.
(**it will reboot your device twice before start android system. then it will continue..)
(i dont get any responsibility of your device. if it bricks. contact me: luke7taler@gmail.com
Finalization

You can see now there is an app "SuperSU". you can manage your root permission with that and if you need to check if the device is rooted. download a root checking app from playstore...

ENJOY Root permissions /*|*\*-*|*\*

Kind regards,
Infinite Tech.