LineageOSrom.net - Theese days i hate speaking, and writing. So i'll short it out. You need to download Lineage OS ROM for ZUK z1 based on Nougat and flash it along with gapps. Go grab them.
Android 7.1.1 Nougat update. According to some rumors Lenovo and Google will not release the official Nougat update for your Zuk Z1 so installing the Lineage OS 14.1 ROM is the only way to update it to the Nougat version.
Lineage OS for Zuk Z1 is completely optimized and customized which means that you can successfully boot the Nougat system on your own smartphone. Also, in case you are wondering yes, once you’ll install Lineage OS on Zuk Z1 your phone will be capable to run all Android Nougat features, applications and features. So, in a few words with the Lineage OS ROM installed your smartphone should run better and faster than before.
Requirements and Prerequisites
You should install the Lineage OS ROM only on Zuk Z1 devices. Do not try with any other Lenovo or Android smartphone
Make sure your Zuk Z1 has already root access and installed a custom recovery image like TWRP recovery or CWM Recovery. It's okay to use CWM but TWRP recovery let’s you do a number of cool stuff but the whole point of having a custom recovery is to be able to flash unsigned .zip files. These .zip files could be anything from a custom kernel, boot, recovery, MODs or full custom ROMs.
In order to correctly install this ROM you will need to wipe the data and factory reset your smartphone. This step is included in the tutorial and it means that you will have to backup all your files using cloud storage services, a SD Card or a PC if you want your files to be in save hands.
Lastly, do not go ahead with the installation process if your phone has less than 20% power left.
Done?, Let’s go ahead follow this steps.
1. Download Nougat 7.1.1 Lineage 14.1 for Zuk Z1
Android 7.1.1 Nougat is a major update so, it is required by the Lineage Team to connect your ZUK Z1 to a Wi-Fi network to be able to download the ROM with high speed.
Download Lineage OS 14.1 for ZUK Z1
3. Download Nougat Lineage OS Gapps
Since, you are interested to update your ZUK Z1 to Android 7.1.1 Nougat using a custom ROM as it is Lineage OS ROM you need to download and flash Google Apps in order to be able to use any Google services.
Download Nougat Lineage OS Gapps
It occured that we can't move aside GApps entirely from our phone. So you need this Lineage OS GApps package to be installed. At least the most minimum modular.
3. Installing Lineage OS 14.1 Android Nougat on Zuk Z1
How to Flash Lineage 14.1 on ZUK Z1 Nougat 7.1.1? Follow guidance below with carefull.
At first, download files from above and transfer them to your phone’s internal storage. Do not unzip or extract anything from there.
Now, switch off your smartphone completely and once hear a vibrate on your hands after 5-10 seconds boot it into recovery mode.
When, you are into a recovery mode like TWRP you need to hard/factory reset your Lenovo K4 Note. From the TWRP main menu tap on the wipe button and swipe to the right side to complete the operation.
After doing so, tap on the install option from the TWRP main menu and load the Android 7.1.1 Nougat Custom ROM file for your ZUK Z1.
This time repeat the last step from above but install Lineage OS Gapps package.
When done, go back to main menu of recovery and reboot it.
Perfect; That was all how to flash Lineage 14.1 on ZUK Z1 via recovery. For any questions use the comments section from below.
In case you need root access to be enabled on ZUK Z1, you can follow this guide. On those guide also tell you how to replace Lineage OS native root with SuperSU without flashing.