included all possible ways to install LineageOS with Linux

README.md

@@ -86,7 +86,10 @@ Lineage
 	- Google Cloud (Kontakte & Kalender)
 	- Google Cloud Messaging: Push Notifications
 	- Google Maps
-- microG: 
+- microG: Open-Source replacements for GApps
+	- network localization services
+	- Google Cloud Messaging
+	- Maps API
 
 ### Womit kann man Google Services ersetzen?
 

step-by-step.md

@@ -7,9 +7,13 @@ Sources:
 
 ## Research 
 
-* find out device code: https://support.mogaanywhere.com/hc/en-us/articles/201302920-How-do-I-find-my-Android-device-s-model-number-
+* find out device code:
+  https://support.mogaanywhere.com/hc/en-us/articles/201302920-How-do-I-find-my-Android-device-s-model-number-
 * find out if there is TWRP for the device code: https://twrp.me/Devices/
-* find out if there is a custom rom for the device code: https://download.lineage.microg.org/
+* find out if there is a microG-lineage for the device code:
+  https://download.lineage.microg.org/
+  * if not possible, look for normal lineageOS without microG:
+    https://wiki.lineageos.org/devices/
 
 ## Risks 
 
@@ -43,10 +47,62 @@ you flashed it. Be wary if you bought the phone second hand/online.
 
 ### Install Firmware
 
-* install TWRP and lineageOS with microG https://lineage.microg.org/#instructions
-  * if not possible, look for normal lineageOS without microG: https://wiki.lineageos.org/devices/
-  * if `adb reboot bootloader` doesn't work, use `adb reboot download`
-  * if `adb sideload` doesn't work, use a micro SD card to transfer the lineageOS image
+Install TWRP and lineageOS+microG https://lineage.microg.org/#instructions
+
+#### TWRP
+
+Download TWRP image (see above)
+
+Install ADB on the computer: https://www.xda-developers.com/install-adb-windows-macos-linux/
+
+Enable USB debugging
+* Tap seven times on Settings/About Phone/Build Number to enable Developer Settings
+* Enable Settings/Developer Settings/USB Debugging
+
+Create adb connection
+* Connect phone to computer with a micro USB cable
+* Linux: execute `adb devices -l`
+* On the phone, confirm that you want to allow this computer to do debugging
+* If the device doesn't show up, try a different micro USB cable
+
+Boot the phone into download mode:
+* Either `adb reboot bootloader`
+* Or `adb reboot download`
+* Or duckduckgo for the download mode key combination of your device
+* If all of this doesn't work, you might need to unlock the bootloader:
+  https://www.theandroidsoul.com/unlock-bootloader-via-fastboot-android/
+
+Flash TWRP:
+* Either with fastboot: `fastboot flash recovery twrp-xxx-xxx-xxx.img`
+* Or with heimdall (you might need to install it first): `heimdall flash
+  --RECOVERY twrp-xxx-xxx-xxx.img`
+  * If it doesn't work, try `heimdall flash --RECOVERY twrp-xxx-xxx-xxx.img
+    --no-reboot` and reboot manually afterwards. Careful: only reboot if the
+    flashing is finished.
+
+#### LineageOS
+
+First boot into the recovery mode:
+* Either with adb: `adb reboot recovery`
+* Or with the recovery mode key combination of your device.
+  * Note: this is not the same combination for the download mode.
+
+Then go to Wipe + Advanced Wipe to wipe the following partitions:
+* System
+* Data
+* Cache
+* Dalvik
+
+Then go to Advanced/ADB Sideload, swipe to the right, and execute `adb sideload
+lineage-xxx.zip` on your computer.
+
+If `adb sideload` doesn't work, use a micro SD card: 
+* Copy the lineage-xxx.zip to the micro SD card
+* Insert the micro SD card into the phone
+* Boot into Recovery mode/TWRP
+* Go to "Install", select the file from the micro SD card, and install it.
+
+Reboot to start LineageOS!
 
 ### Secure Phone