Install LineageOS on Fairphone

1. Check your prerequisites on your computer

[ ] adb and fastboot are installed?
[ ] you have downloaded bootimage (img) and LineageOS (zip)?
[ ] you have the unlock code (in case of Fairphone 3)?

2. Unlock your fairphone

Navigate to "Settings - About phone"
Press 7 times “Build number” to enable Developer mode
Navigate to "Settings - System – Advanced – Developer options"
Enable OEM unlocking with unlock your code
Navigate to "Settings - System – Advanced – Developer options"
Enable USB Debugging

3. Connect via usb

Connect your computer & fairphone via usb
On your fairphone allow the usb connection
Type adb devices on your computer. The result should show something like
```
List of devices attached
<SerialNumberOfYourPhone>	device
```

4. Install LinegaeOS recovery image

Reboot your fairphone to bootloader mode: Type adb reboot bootloader on your computer.
Fairphone should show the bootloader screen.
Type fastboot devices on your computer. The result should show something like
```
<SerialNumberOfYourPhone>	fastboot
```
Type on your computer fastboot oem unlock.
Install fastboot image by typing fastboot flash recovery <image_filename.img> on your computer (<image_filename.img> is the img-file you have downloaded in 1.).
Type on your computer fastboot oem lock.

5. Install LineageOS

Reboot your fairphone again to bootloader mode: Type adb reboot bootloader on your computer.
Your fairphone now boots to the new LineageOS recovery image.
Choose Factory Reset - Format Data/Factory Reset
Return to main menu
Apply update - Apply from ADB
Type adb sideload <lineagos.zip> on your computer (<lineagos.zip> is the zip-file you have downloaded in 1.).

5.1 Optional installation of Google Apps

If you can't abstain from the Google Apps or the Google Play Store there exist packages with various scopes, you will find a package comparison here: https://github.com/opengapps/opengapps/wiki/Package-Comparison

Download the favored version from here.
Install the gapps the same way, you installed LineageOs: adb sideload <gapps.zip>

6. Start LineageOS

Return to main menu
Choose apply update, then your phone should start with the new LineageOS.
Walk through the initial LineageOS setup.

7. Download the F-Droid App-Store

Use the browser on your Fairphone to download F-Droid: https://www.f-droid.org/
Visit the download-folder and install F-Droid (accept the warning).
Now you can install Apps like DeltaChat, NextCloud, Fennec, Tusky, k9 (...) through the F-Droid Store.
Open Fennec and install privacy badger as add-on.

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