diff --git a/SDK/17.1.0_ddde560/sdk_config.h b/SDK/17.1.0_ddde560/sdk_config.h
index 79eea61..30b651a 100644
--- a/SDK/17.1.0_ddde560/sdk_config.h
+++ b/SDK/17.1.0_ddde560/sdk_config.h
@@ -10552,12 +10552,12 @@
 // <2=> NRF_CLOCK_LF_SRC_SYNTH 
 
 #ifndef NRF_SDH_CLOCK_LF_SRC
-#define NRF_SDH_CLOCK_LF_SRC 2
+#define NRF_SDH_CLOCK_LF_SRC 0
 #endif
 
 // <o> NRF_SDH_CLOCK_LF_RC_CTIV - SoftDevice calibration timer interval. 
 #ifndef NRF_SDH_CLOCK_LF_RC_CTIV
-#define NRF_SDH_CLOCK_LF_RC_CTIV 0
+#define NRF_SDH_CLOCK_LF_RC_CTIV 16
 #endif
 
 // <o> NRF_SDH_CLOCK_LF_RC_TEMP_CTIV - SoftDevice calibration timer interval under constant temperature. 
@@ -10565,7 +10565,7 @@
 // <i>  if the temperature has not changed.
 
 #ifndef NRF_SDH_CLOCK_LF_RC_TEMP_CTIV
-#define NRF_SDH_CLOCK_LF_RC_TEMP_CTIV 0
+#define NRF_SDH_CLOCK_LF_RC_TEMP_CTIV 2
 #endif
 
 // <o> NRF_SDH_CLOCK_LF_ACCURACY  - External clock accuracy used in the LL to compute timing.
@@ -10584,7 +10584,7 @@
 // <11=> NRF_CLOCK_LF_ACCURACY_1_PPM 
 
 #ifndef NRF_SDH_CLOCK_LF_ACCURACY
-#define NRF_SDH_CLOCK_LF_ACCURACY 7
+#define NRF_SDH_CLOCK_LF_ACCURACY 1
 #endif
 
 // </h> 
diff --git a/main.c b/main.c
index 0205b45..50e232e 100644
--- a/main.c
+++ b/main.c
@@ -63,10 +63,10 @@
 #else
 #define TIMER_TICKS(MS) APP_TIMER_TICKS(MS, APP_TIMER_PRESCALER)
 // Low frequency clock source to be used by the SoftDevice
-#define NRF_CLOCK_LFCLKSRC      {.source        = NRF_CLOCK_LF_SRC_SYNTH,           \
-                                 .rc_ctiv       = 0,                                \
-                                 .rc_temp_ctiv  = 0,                                \
-                                 .xtal_accuracy = NRF_CLOCK_LF_XTAL_ACCURACY_20_PPM}
+#define NRF_CLOCK_LFCLKSRC      {.source        = NRF_CLOCK_LF_SRC_RC,               \
+                                 .rc_ctiv       = 16,                                \
+                                 .rc_temp_ctiv  = 2,                                 \
+                                 .xtal_accuracy = 0}
 #endif
 
 #define MIN_CONN_INTERVAL                MSEC_TO_UNITS(7.5, UNIT_1_25_MS)               /**< Minimum connection interval (7.5 ms) */