diff --git a/location/user/gps.cfg b/location/user/gps.cfg
index db6022c..abda3b0 100644
--- a/location/user/gps.cfg
+++ b/location/user/gps.cfg
@@ -9,6 +9,8 @@ gnss_device_patch_address=0
 gnss_device_patch_file=/vendor/firmware/kepler.bin
 ism_stream_enable=1
 caplay_port_tcp_port=@GNSS_ISM_CAPTURE_PLAYBACK
+MaxNtnRefLocAgeSecs=600
+GlueLayer_IsPlatformRefTimeEnable=1
 chpp_betp_client=1
 gnss_device_data_port_chpp_spi_device=/dev/gnss_ipc
 gnss_device_data_port_chpp_present=1
diff --git a/location/userdebug/gps.cfg b/location/userdebug/gps.cfg
index a9d2050..ad41688 100644
--- a/location/userdebug/gps.cfg
+++ b/location/userdebug/gps.cfg
@@ -24,6 +24,7 @@ gnss_device_patch_file=/vendor/firmware/kepler.bin
 ism_stream_enable=1
 caplay_port_tcp_port=@GNSS_ISM_CAPTURE_PLAYBACK
 
+MaxNtnRefLocAgeSecs=600
 # CHIP_CONFIG_IO_OPT_HOSTIO_VIA_SECONDARY + CHIP_CONFIG_IO_OPT_CPMB_MASK
 #Chip_Configuration_Io_Options=0x9
 # enable DEBUG sync msg
@@ -33,6 +34,7 @@ caplay_port_tcp_port=@GNSS_ISM_CAPTURE_PLAYBACK
 #Chip_Configuration_cpdbgsync=1
 
 # Chip_Configuration_TrackerDebugMode = 0x10
+GlueLayer_IsPlatformRefTimeEnable=1
 
 # enables CHPP for SPI port
 # uncomment the *chpp* lines below (and comment gnss_device-data_port_kepslim_present above) to use SPI+CHPP