Installing the Exodus MOD on OnePlus 2

Less than a year ago I was attracted by the value for money offer of OnePlus 2 and became a proud owner. Being paranoid about Google tracking, I disabled most Google apps. Alas, some apps were impossible to disable. I assumed that this was caused by their dependencies with other core applications. Google play services was one them, but I never created an account with Google and never synced anything with them.

Time went by and it happened that data over mobile was accidentally enabled. And then I noticed from the mobile data traffic statistics, that Google Play services was creating traffic even without a Google account! Why does this happens its beyond my perception, but anyone is allowed to guess based on [recent history](https://en.wikipedia.org/wiki/PRISM_(surveillance_program)#/media/File:Prism_slide_5.jpg “PRISM Surveillance program”). There is an option to disable background traffic on the stock Android ROM (OxygenOS) but that works only when data over mobile is enabled. With Wi-Fi enabled, Google Play services keeps on sending suspicious traffic, back to mother Google.

So I decided to look for alternatives to replace OxygenOS with a Google-free Android ROM. These are the options I have investigated:
* [Replicant](http://www.replicant.us/): This seems to be the more privacy respecting Android MOD. No support for OnePlus 2, alas!
* [AOKP](http://aokp.co): This is an interesting MOD with lots of features. There are recent nightly builds for OnePlus 2. I tried to install it my Phone but gave an error when I tried to sideload it.
* [CyanogenMOD](https://web.archive.org/web/20161225144318/https://www.cyanogenmod.org/blog/a-fork-in-the-road): A popular Android MOD that was [recently discontinued](https://twitter.com/CyanogenMod/status/813086249506349056). A fork by the name [LineageOS](http://lineageos.org/) is taking over. No image downloads yet.
**UPDATE (2-Jan-2016): There are some experimental LineageOS images [here](http://www.lineageosrom.com/2016/12/rom-download-linage-os-for-oneplus-2.html).**
* [Paranoid Android](http://www.paranoidandroid.co/): Another successful Android MOD with [close ties to OnePlus](http://www.androidauthority.com/oneplus-paranoid-android-team-587101/). It boasts some interesting features. Officially supports all OnePlus models except the latest OnePlus 3T. I tried the OnePlus 2 image but the phone stack to the OnePlus logo boot screen.
* [Exodus](https://github.com/TeamExodus): This is a minimalistic Android MOD. It is based on [AOSP](https://source.android.com/) and is free from Google Apps. This is the only MOD I managed to get it working on my OnePlus 2.

So I decided to go with Exodus. This guide describes the procedure and preparations I followed in order to flash the latest Exodus nightly build for OnePlus 2.

**DISCLAIMER: This guide could renter your device a luxurious brick! Backup everything before you continue. The author of this guide will not be liable for any damages you may cause on your device or any data lost. Proceed at your own risk!**

Now we got that out of the way, let’s continue.

## Prerequisites

* A PC. In this guide we are using Debian/Ubuntu as the PC’s Operating System but this can work with other Operating Systems, with minor adaptations.
* An OnePlus 2 smartphone. It could possibly be used for other devices too, but I have only tested this on OnePlus 2.
* The [Android Debug Bridge (ADB)](https://developer.android.com/studio/command-line/adb.html). This is part of the [Android SDK](https://developer.android.com/studio/index.html). On Debian/Ubuntu you can install it with `apt install android-tools-adb`.
* A [Type-C USB](https://en.wikipedia.org/wiki/USB_Type-C) cable to connect the phone to your PC.

## Make your device detectable in Linux

There is some process we need to follow so that the OnePlus 2 device is detectable by ADB

### Enable Usb Debugging

To Enable *USB Debugging* we need to first enable the *Developer Options*:

* Go into *Settings*
* Dive into the *About phone* option
* Tap 7 times on the *Build number* option
* Go back and tap on *Developer Options*
* Enable *USB debugging* and *OEM unlock*

### Enable detection of device under Linux

First ensure that the device is connected:

“`
# lsusb

Bus 003 Device 039: ID 2a70:f003

“`

The device ID for OnePlus 2 is **0x2a70**. Set this in * ~/.android/adb_usb.ini*:

“`
# echo “0x2a70” >> ~/.android/adb_usb.ini
“`

Download the udev rules files (Thanks [Nicolas Bernaerts](http://bernaerts.dyndns.org/android/339-android-oneplustwo-oneplusx-enable-adb-mtp-detection-ubuntu-trusty)):

“`
# wget –header=’Accept-Encoding:none’ -O /etc/udev/rules.d/51-android.rules https://raw.githubusercontent.com/NicolasBernaerts/ubuntu-scripts/master/android/51-android.rules
# chmod a+r /etc/udev/rules.d/51-android.rules
# wget –header=’Accept-Encoding:none’ -O /etc/udev/rules.d/69-mtp.rules https://raw.githubusercontent.com/NicolasBernaerts/ubuntu-scripts/master/android/69-mtp.rules
# chmod a+r /etc/udev/rules.d/69-mtp.rules
“`

Restart the *udev* and *ADB* services:

“`
# systemctl restart udev
# adb kill-server
# adb start-server
“`

**NOTE: make sure USB Debugging is enabled otherwise you will still not be able to see the device!**

Verify that the device is present:

“`
# adb devices
List of devices attached
da0afea7 unauthorized
“`

Seems OK.

## Backup your data and stock image

Since we are not using Google’s services we will need to manually backup all important data such as:

* Export contacts on a *.vcf* file.
* Save Pictures and Videos from the phone on your PC
* Backup every other Applacation data which is important to you.

You can also backup your entire system with ADB:

“`
# adb backup -f oneplus2.bck -apk -shared -all
“`

This will take some time depending on the size of your data.

You can later restore your system back to normal, using this command:

“`
# adb restore oneplus2.bck
“`

## Prepare the recovery image

Download Prepare the First Aid kit

This is a bundle that includes all the files needed to bring life to a bricked OnePlus 2 device. It includes a recovery image which we will use to install Exodus (or any other image you wish) on the device.

“`
# wget -O Firstaid_v_2_0.zip ‘http://forum.xda-developers.com/devdb/project/dl/?id=16684&task=get’
# unzip Firstaid_v_2_0.zip
“`

All the necessary files are in the newly created, *Firstaid* directory.

### Download TWRP Custom recovery

The recovery image that comes with *Firstaid* is somewhat outdated. We will download a more recent version of it and replace it in the Firstaid directory. You can download the more recent [TWRP](https://twrp.me/) image from [here](https://dl.twrp.me/oneplus2/twrp-3.0.2-0-oneplus2.img.html). Do not use `wget` or other command line tools, just a normal browser to download it.

**NOTE: There are more recent versions than 3.0.2-0 like 3.0.2-1 and 3.0.2-2. You can try those if you feel lucky, but be warned! Those versions did not work on my phone. You can see all the past and resent images [here](https://dl.twrp.me/oneplus2/).**

Verify the downloaded image:

“`
# wget -O twrp-public.asc https://dl.twrp.me/public.asc
# gpg –import twrp-public.asc
# wget https://dl.twrp.me/oneplus2/twrp-3.0.2-0-oneplus2.img.asc
# gpg –verify twrp-3.0.2-0-oneplus2.img.asc twrp-3.0.2-0-oneplus2.img
“`

If you get `Good signature from “TeamWin “` that means the image is correct. Now replace the TWRP image that comes with Firstaid with this one:

“`
# cp twrp-3.0.2-0-oneplus2.img Firstaid/twrp.img
“`

## Flash the recovery image

Reboot to fastboot mode:

“`
# adb reboot-bootloader
“`

Alternatively you can poweroff the OnePlus 2 and press the Volume UP + Power buttons simultaneously.

Verify the presence of the device:

“`
# fastboot devices
da0afea7 fastboot
“`

Unlock the phone:

“`
fastboot oem unlock
“`

Flash Firstaid with the recent TWRP recovery image:

“`
# cd Firstaid
# ./firstaid.sh
“`

Now unplug the phone from the PC, poweroff and the press the Volume DOWN + Power buttons simultaneously. This will bring your phone into TWRP recovery.

## Flashing the Exodus image

### Download Exodus image and verify

Download the latest Exodus image for OnePlus 2 [here](http://exodus-developers.net/exodus-6.0/oneplus2/exodus-6.0-20161111-NIGHTLY-oneplus2.zip):

“`
# wget http://exodus-developers.net/exodus-6.0/oneplus2/exodus-6.0-20161111-NIGHTLY-oneplus2.zip
# wget http://exodus-developers.net/exodus-6.0/oneplus2/exodus-6.0-20161111-NIGHTLY-oneplus2.zip.md5
“`

Verify that the download is correct:

“`
# cat exodus-6.0-20161111-NIGHTLY-oneplus2.zip.md5 ; md5sum exodus-6.0-20161111-NIGHTLY-oneplus2.zip
35dcf9ea73648682a36e673f5ed8f0eb /android/exodus-6.0/out/target/product/oneplus2/exodus-6.0-20161111-NIGHTLY-oneplus2.zip
35dcf9ea73648682a36e673f5ed8f0eb exodus-6.0-20161111-NIGHTLY-oneplus2.zip
“`

Seems OK

Plug the phone back to the PC and ensure that it is detectable by ADB:

“`
# adb devices
List of devices attached
da0afea7 device
“`

### Flash the Exodus image

Follow these steps:

* Wipe old data: Select *Wipe* and then *Swipe to Factory Reset*. You may need to format the system if the previous system was encrypted.
* Enter the Sideload mode: From the TWRP start menu select *Advanced* then *ADB Sideload* and then *Swipe to Start Sideload*
* From the PC’s CLI run the following command:

“`
# adb sideload exodus-6.0-20161111-NIGHTLY-oneplus2.zip
“`

Wait and then reboot into the new Exodus system when done.

### Optional steps

#### Install F-Droid:

By default Exodus has a minimal set of apps. Since we are not using Google Apps we will need to install F-Droid:

“`
# wget https://f-droid.org/FDroid.apk
# adb install FDroid.apk
“`

#### Lock your Phone

Setup a PIN or Pattern to lock the screen of your phone when not in use: *Settings* -> *Security* -> *Screen Lock*. Avoid fingerprint as it can be easily bypassed.

#### Encrypt phone

Encrypting your phone will protect your data if it gets stolen or confiscated. These are the steps *Settings* -> *Security* -> *Encrypt phone*. Your phone will need to be plugged to charger and charged to 80% or above, otherwise the system will refuse to start the encryption process.

## Restoring the Stock OxygenOS System

If you decide that you don’t like Exodus or any other MOD that you have installed, you can restore your phone back to the stock OxygenOS. These instructions can also be used to restore your phone’s functionality after you have accidentally bricked it.

### Download necessary images

Download the stock OxygenOS 3.0.2 image from [here](https://www.androidfilehost.com/?fid=24580917854994435). Verify the download with:

“`
# echo 46b1fde116275d83d05c2dd89422069f ; md5sum OnePlus2Oxygen_14_OTA_019_all_1606041303.zip
46b1fde116275d83d05c2dd89422069f
46b1fde116275d83d05c2dd89422069f OnePlus2Oxygen_14_OTA_019_all_1606041303.zip
“`

Download the upgrade patch for Oxygen 3.1.0 from [here](https://www.androidfilehost.com/?fid=24591000424963091). Verify the download with:

“`
# echo 9cfa9a2a4c7fada6f9db79ea660251d0 ; md5sum OnePlus2Oxygen_14_OTA_019-020_patch_1608262242.zip
9cfa9a2a4c7fada6f9db79ea660251d0
9cfa9a2a4c7fada6f9db79ea660251d0 OnePlus2Oxygen_14_OTA_019-020_patch_1608262242.zip
“`

Optionally you can download the [SuperSU](https://download.chainfire.eu/743/supersu) image if you would like your OxygenOS rooted:

“`
# wget -O supersu.zip ‘https://download.chainfire.eu/743/SuperSU/BETA-SuperSU-v2.52.zip?retrieve_file=1’
“`

### Flash Recover image

First we need to restore the recovery ROM from Firstaid:

“`
# cd Firstaid
# ./firstaid.sh
“`

### Flash the Oxygen Images.

Before we install the OxygenOS image it is recommended to wipe the phone: From the TWRP menu select *Wipe* and then *Swipe to factory reset*. If the system was previously encrypted you will need to use TWRP to format it before the wipe.

Then we need to set the device into Sideload mode: Select *Advanced* -> *ADB Sideload* -> *Swipe to Start Sideload*.

First install the OxygenOS 3.0.2 image:

“`
adb sideload OnePlus2Oxygen_14_OTA_019_all_1606041303.zip
“`

Then re-enable ADB Sideload and load the Oxygen 3.2.0 patch:

“`
adb sideload OnePlus2Oxygen_14_OTA_019-020_patch_1608262242.zip
“`

Optionally you can also load the SuperSU application as well

“`
adb sideload supersu.zip
“`

Finally reboot into the new system and enjoy your freshly formatted phone.

References
———–
* http://bernaerts.dyndns.org/android/339-android-oneplustwo-oneplusx-enable-adb-mtp-detection-ubuntu-trusty
* https://forum.xda-developers.com/devdb/project/dl/?id=16684
* https://twrp.me/
* https://twrp.me/devices/oneplustwo.html
* https://github.com/TeamExodus/device_oneplus_oneplus2
* http://exodus-developers.net/
* https://github.com/TeamExodus/device_oneplus_oneplus2

2 comments

Leave a Reply

Your email address will not be published. Required fields are marked *