diff --git a/location/user/gps.cfg b/location/user/gps.cfg
index 3c1c8a8..9f54011 100644
--- a/location/user/gps.cfg
+++ b/location/user/gps.cfg
@@ -57,6 +57,8 @@ RfPathLossDb_Ap=3600
 RfPathLossDb_Cp=3600
 RfPathLossDb_L5_Ap=4300
 RfPathLossDb_L5_Cp=4300
+IsUseEntireRespTime911=1
+isForceHighAccuracyMode=1
 isUseUncalAccel=0
 
 GNSS_CARRIER_CONFIG_BEGIN
diff --git a/location/userdebug/gps.cfg b/location/userdebug/gps.cfg
index 23d4075..50e03df 100644
--- a/location/userdebug/gps.cfg
+++ b/location/userdebug/gps.cfg
@@ -181,6 +181,12 @@ RfPathLossDb_Ap=3600
 RfPathLossDb_Cp=3600
 RfPathLossDb_L5_Ap=4300
 RfPathLossDb_L5_Cp=4300
+NmeaBitmask=0x010003fff
+
+# force engine to use entire response time for emergency session; default 0
+IsUseEntireRespTime911=1
+# force engine to engage high accuracy if entire response time used; default 0
+isForceHighAccuracyMode=1
 
 # 0: Use calibrated Accel data 1: Use uncalibrated Accel data
 isUseUncalAccel=0