diff --git a/cpu/arm/aducrf101/dev/radio.c b/cpu/arm/aducrf101/dev/radio.c
index 71f78f41b..6e2b2ca47 100644
--- a/cpu/arm/aducrf101/dev/radio.c
+++ b/cpu/arm/aducrf101/dev/radio.c
@@ -193,6 +193,9 @@ prepare(const void *payload, unsigned short payload_len)
 static int
 transmit(unsigned short transmit_len)
 {
+  if(!radio_is_on)
+    return RADIO_TX_ERR;
+
   /* Transmit the packet */
   if(transmit_len > MAX_PACKET_LEN) {
     transmit_len = MAX_PACKET_LEN;
@@ -224,6 +227,9 @@ read(void *buf, unsigned short buf_len)
   uint8_t packet_len;
   int8_t rssi;
 
+  if(!radio_is_on)
+    return 0;
+
   if(buf_len > MAX_PACKET_LEN) {
     buf_len = MAX_PACKET_LEN;
   }
@@ -296,7 +302,7 @@ get_value(radio_param_t param, radio_value_t *value)
   case RADIO_PARAM_RSSI:
   {
     int8_t dbm;
-    if(RadioRadioGetRSSI(&dbm) != RIE_Success) {
+    if(!radio_is_on || RadioRadioGetRSSI(&dbm) != RIE_Success) {
       return RADIO_RESULT_ERROR;
     }
     *value = dbm;
diff --git a/platform/ev-aducrf101mkxz/README.md b/platform/ev-aducrf101mkxz/README.md
index 2d8e98c42..a4cf4dcb4 100644
--- a/platform/ev-aducrf101mkxz/README.md
+++ b/platform/ev-aducrf101mkxz/README.md
@@ -73,8 +73,7 @@ the SLIP tunnel on the host machine:
         -s /dev/serial/by-id/usb-SEGGER_J-Link_000541011111-if00 \
         -B 115200 -v3 aaaa::1/64
 
-Press the RESET button on the eval board, then open the border router
-home page at: http://[aaaa::3230:3030:3132:3334]/
+Open the border router's home page at: http://[aaaa::3230:3030:3132:3334]/
 
 #### Web Server ####