# Install LineageOS on Fairphone ## 1. Check your prerequisites on your computer [ ] adb and fastboot are installed on your computer? [ ] you have downloaded bootimage (img) and LineageOS (zip)? [ ] you have the unlock code (in case of Fairphone 3)? [ ] you have a usb cable prepared? [ ] you have removed your screen lock? [ ] your phone has at least 70% battery? [ ] you are prepared to erase all the data on your fairphone? ## 2. Unlock your fairphone Unlocking will allow us to overwrite the boot-loader. 1. Navigate to "Settings - About phone" 1. Press 7 times “Build number” to enable Developer mode 1. Navigate to "Settings - System – Advanced – Developer options" 1. Enable USB Debugging 1. In case of Fairphone3: 1. Navigate to "Settings - System – Advanced – Developer options" 1. Enable OEM unlocking with unlock your code ## 3. Connect via usb For overwriting your fairphones boot-loader we will need connection to your pc. 1. Connect your computer & fairphone via usb 1. On your fairphone allow the usb connection 1. Type `adb devices` on your computer (in case of windows open the terminal in the directory containing adb&fastboot.exe and use the `.\` prefix. The resulting command will be: `.\adb devices`). The result should show something like ``` List of devices attached device ``` ## 4. Prepare recovery image installation The next step is the critical one. If this step goes wrong your fairphone may remain broken. Time to do some checks: 1. Check that your phone has at least 70% battery. 1. Reboot your fairphone to bootloader mode: Type `adb reboot bootloader` on your computer. 1. Fairphone should show the bootloader screen. 1. Type `fastboot devices` on your computer. The result should show something like ``` fastboot ``` 1. Check whether your downloaded recovery image is not broken. In case of 1. windows type `Get-FileHash ` on your computer. 1. linux type `sha256sum ` or alternatively `shasum -a 256 ` on your computer. 1. The result should look like ``` b6494278d0a399547a9344a6018a30b388f71a97ef52989bcdd661002f3a8631 lineage-18.1-20210906-recovery-FP3.img ``` 1. Now compare the number to the one given on the recovery image download page. Ensure, you are browsing secure with "https". [](img/sha256.png) 1. Be aware, in the next step all data will be erased on your fairphone! ## 5. Install LinegaeOS recovery image All checks passed? Then lets continues: 1. Type on your computer `fastboot oem unlock`. 1. If your fairphone reboots, you might have to do the steps 2.1-2.4 again to re-enable USB debugging. Then `adb reboot bootloader` will bring you back. 1. Install fastboot image & reboot to recovery 1. in case of Fairphone2 1. by typing on your computer `fastboot flash recovery ` ( is the img-file you have downloaded in 1.). 1. in case of Fairphone3 1. by typing on your computer `fastboot flash boot ` ( is the img-file you have downloaded in 1.). - If you see something like "boot partition is smaller than boot image" you might find the solution [here](https://gitlab.com/domaindrivenarchitecture/lineageos-fairphone/-/blob/main/Guides/InstallationFAQ.md). 1. On the phone you should not see any difference and you phone should remain in the bootloader screen. Then hold Volume Up + Power. Release when boot logo appears. 1. Reboot to Recovery without starting your original rom 1. in case of Fairphone2 1. With the device powered off, hold Power + Volume Up. Release when boot logo appears. 1. in case of Fairphone3 1. Use your bootloader to restart [](img/start.jpg)[](img/recovery.jpg) 1. or use the button method, hold Volume Up + Power. Release when boot logo appears. Please take care not to boot in to your old Android / FairphoneOS. If you missed the proper reboot into recovery by buttons you've to step back to step 1. because your old os reinstall its own recovery over the one just installed. ## 6. Install LineageOS This step is no more dangerous. You can retry as often you want to. The LineageOs boot-loader will verify your binaries. If you are already in the recovery mode you can go to step 6.3. 1. Choose Factory Reset - Format Data/Factory Reset [](img/reset.jpg)[](img/format.jpg) 1. Return to main menu 1. Apply update - Apply from ADB [](img/apply.jpg)[](img/sideload.jpg) 1. Type `adb sideload ` on your computer ( is the zip-file you have downloaded in 1.). [](img/done.jpg) 1. Check whether you see the `Step 2/2` on the bottom of your fairphone. ### 6.1 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](https://github.com/opengapps/opengapps/wiki/Package-Comparison). You have to install Google Aps in front of first the first start wizzard. 1. Download the favored version from [here](https://opengapps.org/). 1. Install the gapps the same way, you installed LineageOs: `adb sideload ` ### 6.2 Reboot into LineageOS and prepare for OEM Lock Reboot the system then your phone should start the installed LineageOS. Then do again steps 2.1 - 2.4 to re-enable USB-debugging and boot again into fastboot mode with `adb reboot bootloader`. ## 7. OEM Lock OEM unlocking / locking will erase all data, so we should ensure to do the lock again now. 1. Type `fastboot devices` on your computer. The result should show something like ``` fastboot ``` 1. Type on your computer `fastboot oem lock`. ## 8. Start LineageOS First start of your new LineageOS - hurray. 1. Walk through the initial LineageOS setup. ## 9. Download the F-Droid App-Store For installing more software we recommend F-Droid 1. Use the browser on your Fairphone to download F-Droid: [https://www.f-droid.org/](https://www.f-droid.org/) 1. Visit the download-folder and install F-Droid (accept the warning). 1. Now you can install Apps like DeltaChat, NextCloud, Fennec, Tusky, k9 (...) through the F-Droid Store. 1. Open Fennec and install privacy badger as add-on.