diff --git a/samples/bluetooth/hci_uart/boards/bbc_microbit.conf b/samples/bluetooth/hci_uart/boards/bbc_microbit.conf
index bd1235868b2..bcf787ade63 100644
--- a/samples/bluetooth/hci_uart/boards/bbc_microbit.conf
+++ b/samples/bluetooth/hci_uart/boards/bbc_microbit.conf
@@ -4,5 +4,3 @@ CONFIG_MAIN_STACK_SIZE=512
 CONFIG_IDLE_STACK_SIZE=256
 CONFIG_ISR_STACK_SIZE=512
 CONFIG_BT_MAX_CONN=10
-CONFIG_BT_PHY_UPDATE=n
-CONFIG_BT_DATA_LEN_UPDATE=n