123 lines
4.8 KiB
Markdown
123 lines
4.8 KiB
Markdown
---
|
|
title: "Installing LineageOS Unofficial on Pixel 3a"
|
|
date: 2020-07-13
|
|
lastmod: 2020-07-13
|
|
draft: false
|
|
tags: ["android", "security", "hacking"]
|
|
categories: ["Tutorial"]
|
|
contentCopyright: true
|
|
hideHeaderAndFooter: false
|
|
preview: "/static/img/lineageos-pixel3a/lineage-settings.png"
|
|
---
|
|
In this post I aim to highlight my findings in deciding to go through the
|
|
process of installing LineageOS on my Pixel 3a. Currently, LineageOS does not
|
|
officially support the Pixel 3a. However, InvisibleK (Dan Pasanen) does host
|
|
updated versions of his unofficial LineageOS build for the Pixel 3a complete
|
|
with a custom recovery to utilize for this purpose!
|
|
|
|
{{< thumbgallery >}}
|
|
{{< thumb src="/static/img/lineageos-pixel3a/lineage-settings.png"
|
|
alt="Screenshot showing the LineageOS version and other LineageOS settings on the Pixel 3a" >}}
|
|
{{< thumb src="/static/img/lineageos-pixel3a/lineage-trust.png"
|
|
alt="Screenshot showing the LineageOS Trust feature" >}}
|
|
{{< /thumbgallery >}}
|
|
|
|
|
|
<!--more-->
|
|
# Thank You
|
|
Before going on any further, I'd like to take a moment to give my sincere thanks
|
|
to InvisibleK (Dan Pasanen). Having to set up the entire custom build for Pixel
|
|
3a of LineageOS myself would add far more overhead in the overall simple task in
|
|
trying to get LineageOS to work on a Pixel 3a!
|
|
|
|
# Preface
|
|
There are plenty of guides out there on how to install and set up ADB and
|
|
Fastboot on your host machine. For me, on Arch Linux, this was as simple as
|
|
running `pacman -S android-tools`. However, should you be on MacOS or Windows
|
|
you may have to find resources on how to go about this. I do not intend to go
|
|
over this here -- _sorry_
|
|
|
|
Additionally, this _guide_ also assumes the reader has some familiarity with ADB
|
|
and/or Fastboot.
|
|
|
|
# Source Files
|
|
If you, the reader, know what you're doing and simply just require the files
|
|
for your Pixel 3a they can be found here:
|
|
- https://updater.invisiblek.org/sargo
|
|
|
|
# Installation
|
|
{{< admonition warning "Warning!" >}}
|
|
If it isn't abundantly clear by now, be aware that you **will be destroying all
|
|
the data currently on your Pixel 3a** in the process of installing LineageOS on
|
|
your device! Stop now and back up any files, 2FA codes, or other prior to
|
|
proceeding.
|
|
{{< /admonition >}}
|
|
|
|
## Note about TWRP
|
|
As of writing this, TWRP[^1] (_a custom recovery commonly used in custom OS
|
|
installation_) does not support Android 10. This would have been the preferred
|
|
for a custom recovery, though not strictly required. Since we will be installing
|
|
LineageOS 17.1 for Android 10 we cannot use TWRP.
|
|
|
|
## Flash to Stock
|
|
Google is kind enough to provide a variety of versions of the stock images for
|
|
the Pixel devices. In my process of installing LineageOS, as it will be on
|
|
Android 10, I made sure to flash to the latest stock version of Pixel 3a Android
|
|
10. Do note that the versions are listed in reverse order, with the latest being
|
|
found in the bottom-most row.
|
|
- https://developers.google.com/android/images
|
|
|
|
Additionally, Google provides a helper script `flash-all` that I highly
|
|
recommend running as-is to flash your Pixel 3a to stock. This will take some
|
|
|
|
## Flash Custom Recovery
|
|
Using InvisibleK's build page, you'll find the required custom recovery image
|
|
for flashing found at the bottom of the list of zip files marked with a lone
|
|
"download" link.
|
|
|
|
{{< admonition info "Info" >}}
|
|
The `$` prepended in the code blocks below imply a terminal session (_or
|
|
command prompt_)
|
|
{{< /admonition >}}
|
|
|
|
Download, then flash it via the following steps:
|
|
1. Reboot to recovery
|
|
```bash
|
|
$ adb reboot bootloader
|
|
```
|
|
1. Flash the custom recovery (_make sure to replace `N` with the version you
|
|
downloaded, mine was '4'_)
|
|
```bash
|
|
$ fastboot flash boot sargo-recovery-eng-N.img
|
|
```
|
|
1. Boot the custom recovery either by re-entering recovery mode or fastboot --
|
|
make sure to wait for it to enter Android Recovery after
|
|
```bash
|
|
$ fastboot boot sargo-recovery-eng-N.img
|
|
```
|
|
|
|
## Install LineageOS
|
|
Now that the custom recovery is set up and booted into, we're ready to install LineageOS!
|
|
1. **Important!** Once in recovery, ensure to `Wipe data/factory reset` prior to
|
|
proceeding.
|
|
1. Select `Apply update from ADB`
|
|
1. ADB Sideload the version, if not latest, of LineageOS you want for your Pixel
|
|
3a
|
|
```bash
|
|
$ adb sideload lineage-17.1-2020517-UNOFFICIAL-sargo.zip
|
|
```
|
|
1. Wait for installation to complete then select 'Reboot system now' from the
|
|
recovery menu
|
|
1. **Enjoy LineageOS!**
|
|
|
|
## Verification
|
|
Once in LineageOS, you can browse the settings to verify the installation and
|
|
set up Trust the preferred way. Personally, I chose to leave the defaults.
|
|
|
|
# Bugs / Issues
|
|
I plan to keep this list of bugs and issues I discover up to date, but this is
|
|
what I have encountered so far:
|
|
- WiFi calling does not seem to work
|
|
|
|
[^1]: [Team Win Recovery Project](https://twrp.me/)
|