add some rational to the guide

Guides/LineageOsInstallation.md

@@ -4,8 +4,12 @@
 [ ] adb and fastboot are installed?  
 [ ] 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 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"
@@ -14,6 +18,8 @@
 1. Enable USB Debugging
 
 ## 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. The result should show something like   
@@ -23,6 +29,8 @@
    ```
 
 ## 4. Install LinegaeOS recovery image
+
+If this step goes wrong your fairphone may remain broken. So be shure, your phone has at least 50% 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
@@ -33,31 +41,40 @@
 1. 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.).
 1. Type on your computer `fastboot oem lock`.
 
+OEM unlocking / locking will erase all data, so we should ensure to do the lock again.
+
 ## 5. Install LineageOS
+
+This step is no more dangerous. You can retry as often you want to. The LineageOs boot-loader will verify your binaries.
 1. Reboot your fairphone again to bootloader mode: Type `adb reboot bootloader` on your computer.
 1. Your fairphone now boots to the new LineageOS recovery image. Then start the recovery mode.   
-[<img src="/doc/start.jpg" width="300" height="400">](/doc/start.jpg)[<img src="/doc/recovery.jpg" width="300" height="400">](/doc/recovery.jpg)
+[<img src="img/start.jpg" width="300" height="400">](img/start.jpg)[<img src="img/recovery.jpg" width="300" height="400">](img/recovery.jpg)
 
 1. Choose Factory Reset - Format Data/Factory Reset  
-[<img src="/doc/reset.jpg" width="300" height="400">](/doc/reset.jpg)[<img src="/doc/format.jpg" width="300" height="400">](/doc/format.jpg)
+[<img src="img/reset.jpg" width="300" height="400">](img/reset.jpg)[<img src="img/format.jpg" width="300" height="400">](img/format.jpg)
 1. Return to main menu
 1. Apply update - Apply from ADB  
-[<img src="/doc/apply.jpg" width="300" height="400">](/doc/apply.jpg)[<img src="/doc/sideload.jpg" width="300" height="400">](/doc/sideload.jpg)
+[<img src="img/apply.jpg" width="300" height="400">](img/apply.jpg)[<img src="img/sideload.jpg" width="300" height="400">](img/sideload.jpg)
 1. Type `adb sideload <lineagos.zip>` on your computer (<lineagos.zip> is the zip-file you have downloaded in 1.).  
-[<img src="/doc/done.jpg" width="300" height="400">](/doc/done.jpg)  
+[<img src="img/done.jpg" width="300" height="400">](img/done.jpg)  
 
 ### 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
+
+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 <gapps.zip>`
 
 ## 6. Start LineageOS
+
+First start of your new LineageOS - hurray.
 1. Return to main menu
 1. Choose Reboot system, then your phone should start with the new LineageOS.
 1. Walk through the initial LineageOS setup.
 
 ## 7. Download the F-Droid App-Store
-1. Use the browser on your Fairphone to download F-Droid: https://www.f-droid.org/
+
+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.

Guides/PrepareInstallation.md

@@ -2,7 +2,9 @@
 ## On your computer
 
 1. Download and install adb & fastboot
-   1. In case of [Windows](https://developer.android.com/studio/releases/platform-tools)
+   1. In case of Windows
+      1. [Download adb & fastboot](https://developer.android.com/studio/releases/platform-tools)
+      2. Maybe it is necessary to install USB-Driver by windwos update [see](https://forum.fairphone.com/t/gerat-wird-im-fastboot-mode-nicht-erkannt-os-flashen/42920/2)
    1. In case of Linux `sudo apt install adb fastboot`
 2. Download LineageOS .img and .zip files
    1. In case of [Fairphone 2](https://download.lineageos.org/FP2)