diff --git a/README.md b/README.md
index 5e06895..adf6251 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,14 @@
 # nRF5340 Bluetooth Controller with Support for LE ISO Timesync
 
-This fork of the Zephyr HCI UART example adds a custom HCI Command to allow for timesync between the Bluetooth Host and the Bluetooth Controller. When the HCI LE Read ISO Clock command is received, the Controller toggles a GPIO and returns its current Bluetooth LE ISO Clock in the Command Complete Event.
+This fork of the Zephyr HCI UART example adds a custom HCI Command to allow for timesync between the Bluetooth Host 
+and the Bluetooth Controller. When the HCI LE Read ISO Clock command is received, the Controller toggles a GPIO and 
+returns its current Bluetooth LE ISO Clock in the Command Complete Event.
 
 It has been tested on the nRF5340 Audio DK, but it should work with any nRF5340 dev kit.
 
+## Requirements
+- nRF Connect SDK v2.8 or newer
+
 ## HCI LE Read ISO Clock Command
 - OGF: 0x3f, OCF: 0x200
 - Parameters: Flags (1 Octet) unused
@@ -25,25 +30,25 @@ _HCI over UART and timesync not tested._
 ### HCI over USB CDC
 
 ```sh
-west build -b nrf5340_audio_dk/nrf5340/cpuapp -- -DEXTRA_DTC_OVERLAY_FILE=usb.overlay -DOVERLAY_CONFIG=overlay-usb.conf
+west build --pristine -b nrf5340_audio_dk/nrf5340/cpuapp -- -DEXTRA_DTC_OVERLAY_FILE=usb.overlay -DOVERLAY_CONFIG=overlay-usb.conf
 ```
 
 ### HCI over UART 0 connected to Virtual UART in J-Link Probe
 
 ```sh
-west build -b nrf5340_audio_dk_nrf5340_cpuapp
+west build --pristine -b nrf5340_audio_dk_nrf5340_cpuapp
 ```
 
 ### HCI over UART 1 connected to Virtual UART in J-Link Probe as well as Arduino Headers
 
 Release build:
 ```sh
-west build -b nrf5340_audio_dk/nrf5340/cpuapp -- -DEXTRA_DTC_OVERLAY_FILE=uart1.overlay
+west build --pristine -b nrf5340_audio_dk/nrf5340/cpuapp -- -DEXTRA_DTC_OVERLAY_FILE=uart1.overlay
 ```
 
 Debug build:
 ```sh
-west build -b nrf5340_audio_dk/nrf5340/cpuapp -- -DEXTRA_DTC_OVERLAY_FILE=uart1.overlay -DOVERLAY_CONFIG=debug.conf
+west build --pristine -b nrf5340_audio_dk/nrf5340/cpuapp -- -DEXTRA_DTC_OVERLAY_FILE=uart1.overlay -DOVERLAY_CONFIG=debug.conf
 ```
 
 To use UART 1 via Arduino headers, the virtual UART of the J-Link probe needs to be disabled, e.g. with the JLink Configuration Tool.