diff --git a/device.mk b/device.mk
index e5c015e..c431443 100755
--- a/device.mk
+++ b/device.mk
@@ -214,6 +214,7 @@
     persist.radio.data_ltd_sys_ind=1 \
     persist.radio.is_wps_enabled=true \
     persist.radio.videopause.mode=1 \
+    persist.radio.sap_silent_pin=1 \
     persist.radio.sib16_support=1 \
     persist.radio.data_con_rprt=true \
     persist.radio.always_send_plmn=true \