diff --git a/How_to_use_Firmware.md b/How_to_use_Firmware.md
index 05077d4..a4ab000 100644
--- a/How_to_use_Firmware.md
+++ b/How_to_use_Firmware.md
@@ -5,6 +5,7 @@ In this file you can look up how to [edit](#Editing-the-code), [compile](#Compil
 We are using [Visual Studio Code](https://code.visualstudio.com/download) to edit this project! Simply download and install it!
  - Install the [ARM-GCC](https://mynewt.apache.org/latest/get_started/native_install/cross_tools.html) version [10.3.1 Compiler Tested](https://developer.arm.com/downloads/-/gnu-rm) and remember the path where you installed it.
  - Install the [C++ Extension](https://marketplace.visualstudio.com/items?itemName=ms-vscode.cpptools) in VS-Code.
+ - Install the [C++ Extension Pack](https://marketplace.visualstudio.com/items?itemName=ms-vscode.cpptools-extension-pack) in VS-Code.
  - Create a new IntelliSense Configuration:
 	 - press F1 in VS-Code and enter `C/C++: Edit Configurations (UI)`
 	 - Add a new Configuration and name it
@@ -16,6 +17,7 @@ We are using [Visual Studio Code](https://code.visualstudio.com/download) to edi
  - Edit Makefile.defs:
 	- Change `GNU_INSTALL_ROOT`(path of previously installed Compiler `bin` folder)
 	- Change `GNU_VERSION` (Version of the installed Compiler)
+	- Change the other paths to match your system
 	- Don't forget to remove the `#` in front of the changed lines
 - Install make
 	- **Ubuntu:**  
@@ -33,11 +35,38 @@ We are using [Visual Studio Code](https://code.visualstudio.com/download) to edi
 	  - Install Homebrew package manager by running the following command: `/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"`
 	  - Once Homebrew is installed, run the following command to install Make: `brew install make`
 - go into folder and run `make`
+  - if make fails try to add a folder named `objects` in the `firmware` folder
+- do this for `application` and `bootloader` folder
 
-## Debugging the code
+## Merging the code
 - Install [nRF Util](https://www.nordicsemi.com/Products/Development-tools/nrf-util)
   - Move it to a known path like `C:/nrfutil/`
   - Add this path to `PATH` Environment Variable
+- Install [nRF Command Line Tools](https://www.nordicsemi.com/Products/Development-tools/nRF-Command-Line-Tools)
+- Install nRF Util packages:
+  - `nrfutil install completion device nrf5sdk-tools trace`
+- go into `objects` folder
+- generate settings by `nrfutil settings generate --family NRF52840 --application application.hex --application-version 1 --bootloader-version 1 --bl-settings-version 2 settings.hex` (only has to be done once)
+- merge bootloader and settings by `mergehex --merge bootloader.hex settings.hex --output bootloader_settings.hex`
+- copy the `s140_nrf52_7.2.0_softdevice.hex` file from `nrf52_sdk/components/softdevice/s140/hex/` to `objects`
+- rename `s140_nrf52_7.2.0_softdevice.hex` to `softdevice.hex`
+- merge bootloader_settings and app by `mergehex --merge bootloader_settings.hex application.hex softdevice.hex --output project.hex`
+
+## Uploading the code
+- If you are using J-Link:
+  - Install [Segger J-Link](https://www.segger.com/downloads/jlink)
+  - [Merge](#Merging-the-code) the code
+  - Upload softdevice with `make flash_softdevice`
+  - Upload bootloader in bootloader folder with `make flash`
+  - Upload application in application folder with `make flash`
+- If you are using ST-Link:
+  - Install [openocd](https://mynewt.apache.org/latest/get_started/native_install/cross_tools.html)
+  - Install [ST-Link drivers](https://www.st.com/en/development-tools/stsw-link009.html)
+  - Extract downloaded zip
+  - run `dpinst_amd64.exe`
+  - Upload full image with `make flash_stlink` in application or bootloader folder
+
+
+## Debugging the code
 - Install [Cortex-Debug](https://marketplace.visualstudio.com/items?itemName=marus25.cortex-debug) VS-Code Extension
-- Install [Segger J-Link](https://www.segger.com/downloads/jlink)
 - MORE INFO ADDED LATER
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