diff --git a/source_code/aux_mcu/src/COMMS/comms_main_mcu.c b/source_code/aux_mcu/src/COMMS/comms_main_mcu.c
index 8a77746a..5cec17b6 100644
--- a/source_code/aux_mcu/src/COMMS/comms_main_mcu.c
+++ b/source_code/aux_mcu/src/COMMS/comms_main_mcu.c
@@ -586,7 +586,7 @@ void comms_main_mcu_deal_with_non_usb_non_ble_message(aux_mcu_message_t* message
                 }
                 
                 /* Then set the device in DTM RX mode on channel 0 */
-                debug_dtm_rx(0);
+                debug_dtm_rx(39);
                 
                 /* Set the high current sense pin as its original purpose */
                 platform_io_set_high_cur_sense_as_sense();
diff --git a/source_code/main_mcu/src/functional_testing.c b/source_code/main_mcu/src/functional_testing.c
index 1f3b3dd1..5e981fcf 100644
--- a/source_code/main_mcu/src/functional_testing.c
+++ b/source_code/main_mcu/src/functional_testing.c
@@ -310,7 +310,7 @@ void functional_testing_start(BOOL clear_first_boot_flag)
     #endif
         
     /* Check for received messages */
-    if (temp_rx_message->aux_mcu_event_message.payload_as_uint16[0] < 50)
+    if (temp_rx_message->aux_mcu_event_message.payload_as_uint16[0] < 1400)
     {
         sh1122_put_error_string(&plat_oled_descriptor, u"ATBTLC1000 error / NO RX!");
         while (platform_io_is_usb_3v3_present_raw() != FALSE);