Tediction

Before Flashing CM13 in your Zuk Z1 there are some requirements.Please check if your device fulfills all the provided requirements.

Requirements :

1) At least 70% charge.

2) ADB & Fastboot Drivers Installed

3) Unlocked Bootloader.

4) Recovery Installed.

5)  Type-C USB cable

6) A PC/Laptop

Also Check :-

How to install CM14 ROM on Zuk Z1

How to install Resurrection Remix ROM on Zuk Z1
How to install Nuclea ROM on Zuk Z1

How to install ZUI 2.5 ROM on Zuk Z1
How to install Bliss Pop ROM on Zuk Z1
How to install Mokee ROM on Zuk Z1

Lets Begin...

WARNING : FLASHING A ROM WIPES ALL YOUR DATA SO BACKUP EVERYTHING BEFORE PROCEEDING AND FOLLOW THE STEPS STRICTLY OTHERWISE YOU MAY BRICK YOUR PHONE. DO NOT FLASH ROM WHILE CONNECTED TO A CHARGER !

Steps:-

1) Download CM13 file and extract its content somewhere in your Laptop or PC
2) Go to mobile settings > Developer Options > Advanced Reboot (enable it)
3) Hold power button and choose 'Recovery' under Reboot option.
4) Select Wipe option and choose Advanced wipe.
5) Check Dalvik cache, Cache, System, Data, Internal Storage and swipe to wipe.
6) Connect Zuk Z1 to computer and PC will recognize it as MTP
7) Copy the extracted content of CM13 in Zuk Z1 and disconnect the phone
8) Choose Install from the recovery screen and select "cm-13......ham.zip" now select Add more zips and select the "open_gapps....zip" and swipe right.  Wait for 2-4 min.
 Note : All the other zips other that these two and "capps...zip" are different mod. They are optional. If you want to install then you can else leave it.
9) Now go to Mount from recovery screen and check System
10) Choose Install from recovery screen and now select "capps...zip".

Congratulations !!
First Boot may take 2-5 min..


video tutorial :-

DISCLAIMER : ROOTING/UNLOCKING BOOTLOADER DOESN'T VOID WARRANTY IN ZUK Z1! SO, YOU CAN UNLOCK/ROOT YOUR PHONE WITHOUT WORRIES! THE WAY  OF ROOT ILLUSTRATED BELOW HAS BEEN TESTED ON MY ZUK Z1 WITH STOCK ROM. STILL IF ANYTHING GOES WRONG I AM NOT RESPONSIBLE FOR ANY KIND OF CLAIM OR DAMAGE TO  YOUR PHONE.

NOTE : THIS METHOD IS ONLY FOR WINDOWS LAPTOP OR DESKTOP

Requirements :

1) Stock ROM on Zuk Z1

2) Charge - 70% or more

3) Type C USB cable

4) Laptop of Computer

5) ABD and Fastboot Drivers Installed

6) Unlocked Bootloader

LET'S BEGIN...

Steps

1) Download TWRP Recovery & extract the contents of the file where ever you want in your PC
2) Go to mobile settings > Developer Options > Advanced Reboot (enable it)
3) Connect Zuk  Z1 to your computer through USB.
4) Hold power button and choose 'Bootloader' under Reboot option. 
5) Open the extracted folder and inside it double click on 'Flash Recovery-ZUK-Z1.bat' file.

You have successfully installed the Team Win Recovery !

Video tutorial :-

DISCLAIMER : ROOTING/UNLOCKING BOOTLOADER DOESN'T VOID WARRANTY IN ZUK Z1! SO, YOU CAN UNLOCK/ROOT YOUR PHONE WITHOUT WORRIES! THE WAY  OF ROOT ILLUSTRATED BELOW HAS BEEN TESTED ON MY ZUK Z1 WITH STOCK ROM. STILL IF ANYTHING GOES WRONG I AM NOT RESPONSIBLE FOR ANY KIND OF CLAIM OR DAMAGE TO  YOUR PHONE.

NOTE : THIS METHOD IS ONLY FOR WINDOWS LAPTOP OR DESKTOP

Requirements :

a) Stock ROM on Zuk Z1

b) Charge - 70% or more

c) Type C USB cable

d) Laptop of Computer

e) A careful reader  :p

LET'S BEGIN...

Steps

1 : Download ABD & Fastboot Drivers & extract the contents of the file where ever you want in your PC

2 : Go to mobile settings > About Phone > (tap 7 times on the built number to enable Developer option ) 

3 : Go to Developer Option >  Android debugging (Enable it).

4 :  Connect your phone to your system.

5 : Right click on Windows Icon in your laptop or PC and click on Device Manager.

6 : Scroll down to find Universal Serial Bus Devices and inside it Right click on Z1 and select Update Drivers.

7 : Select "Manually install a driver" and choose "Let me pick up from the list of available drivers on my computer" from the next window.

8 : Click on "Have disk" option and then browse the file "android_winusb.inf" from the extracted folder and click Ok

9 : Double click on ADB Driver to install.

You have successfully installed ADB driver !


ALSO READ :- 

HOW TO UNLOCK BOOTLOADER OF ZUKZ 1
HOW TO INSTALL TWRP IN ZUK Z1

Video Tutorial :-