How to Update from LineageOS 17.1 to 18.1

Updating from Lineage OS 17.1 to official 18.1 builds is easy and fairly straightforward. If you’ve installed the custom ROM on your phone in the past then you’ll have the understanding to install the official update as well.

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You’ll first need to gather some downloads ahead of time. I’ll be including these links down below so be on the lookout for them. Go ahead and download the LineageOS 18.1 build you want to update to.

If you want Magisk and Gapps installed as well, be sure to download those ZIP files as well. They’ll need to be sideloaded/flashed after the update is installed (using the exact same method/command).

Note: Some devices need to be reset in order to update to Lineage OS 18.1. Be sure to read the update instructions for your device in the resource link below.

Now, you’ll need to boot your smartphone into Recovery Mode (which needs to be either TWRP or LineageOS Recovery). The official wiki mentions enabling USB debugging but if you follow along in the video then you’ll see that doesn’t seem to be required.

We just need to get the phone in Recovery Mode so that we can connect it to the PC with a USB cable and open up a Command Prompt, Terminal, or Windows PowerShell in the same folder as our ADB & Fastboot tools are in.

Speaking of, you’ll want to copy/move those ZIP files from earlier (LOS update, magisk, and Gapps) in the same folder as our ADB & Fastboot tools.

Go into Sideload Mode on the smartphone you’re updating (I have the Essential Phone in the video) and then begin sideloading the new LineageOS 18.1 ZIP file as directed.

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The process will take a few minutes to complete so be patient while the updater works its magic.

When it’s done, you’ll be dumped back out to the Recovery Mode menu and you can sideload the other ZIP files (GApps and Magisk), or manually flash those if you choose to install them. This is entirely optional and you can see I skip these steps in the video.

All you have to do now is Reboot the phone back into Android and you’ll see the LOS version has been updated from 17.1 to the latest 18.1 OTA.

From here, you’ll be able to use the built-in updater to install those new OTA updates.

The first batch of LineageOS 18.1 updates are going out for the Google Nexus 6, 2013 Nexus 7, Pixel 2, Pixel 2 XL, Pixel 3a, Pixel 3a XL, Pixel 4, Pixel 4 XL, Pixel 4a, Pixel 5, LeEco Le Max 2, Le Pro 3, LG G2, LG G5, LG V20, Motorola Moto G6+, Moto G7, Moto G7 Play, Moto One Power, Moto X4, Moto Z2 Force, Moto Z3 Play, Nokia 6.1, OnePlus One, OnePlus 3, OnePlus 3T, OnePlus 5, OnePlus 5T, OnePlus 8, OnePlus 8 Pro, OnePlus 8T, Razer Phone, Samsung Galaxy S4, Galaxy S4 Active, Galaxy Tab S5e, Galaxy Tab S6 Lite, Sony Xperia 10, Xperia 10+, Xperia XA2, Xperia XA2 Ultra, Xiaomi Mi 5, Mi 5s, Mi 8, Mi 8 Lite, Mi Mix, Mi Mix 2S, Mi Note 2, POCO F1, and Redmi 7.

1. Intro [00:00]
2. Download the LineageOS ZIP file [01:48]
3. And download any extras you want to install such as Gapps or Magisk
4. Enable USB Debugging Mode [03:21]
5. Boot into your recovery’s Sideload Mode [04:44]
6. Copy/move the files you want to flash into your ADB & Fastboot tools folder [06:20]
7. Execute the ADB Sideload command [06:52]
8. Wait for it to work its magic [09:15]
9. Repeat steps 7 and 8 for other things you want to flash (gapps, magisk, etc)
10. Then reboot the phone [11:34]
11. And finally, check to make sure you’re on LineageOS 18.1 based on Android 11 [12:40]

Resource Links
Official Upgrade Guides –
Download LineageOS –
Download GApps for Android 11 –
Download Magisk –
ADB & Fastboot Tools –

The Gear I Use
5W Amazon Charger –
MicroUSB Cable –
USB-C Cable –
TPU Cases –

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