diff --git a/location/user/gps.cfg b/location/user/gps.cfg
index 859944c..d41a982 100644
--- a/location/user/gps.cfg
+++ b/location/user/gps.cfg
@@ -29,6 +29,7 @@ Chip_Configuration_DCXO_CrystalType=0x11
 Chip_Configuration_GNSSConstConstraintDef = 0x60FF
 LocTech_Constraints = 0x60FF
 Chip_Configuration_RfMiscCtrl = 0x80008001
+Chip_Configuration_ntn_option=2
 bdsUsedInUSPolicy=2
 sbasUsedInUSPolicy=2
 qzssUsedInUSPolicy=2
diff --git a/location/userdebug/gps.cfg b/location/userdebug/gps.cfg
index 26d28a7..0641d1f 100644
--- a/location/userdebug/gps.cfg
+++ b/location/userdebug/gps.cfg
@@ -115,6 +115,11 @@ Chip_Configuration_RfMiscCtrl = 0x80008001
 #Chip_Configuration_RfMiscCtrl=0x8001
 #Chip_Configuration_IspTestConfig=0x22242822
 
+#Chip_Configuration_ntn_option=0 means no NTN blackout IPC handling
+#Chip_Configuration_ntn_option=1 means L1 blanking during NTN blackout period.
+#Chip_Configuration_ntn_option=2 means turning GNSS off during NTN blackout period.
+Chip_Configuration_ntn_option=2
+
 # Disable BDS in the U.S.
 # 0-enabled (default), 1-disabled, 2-auto(disabled in US)
 #gloUsedInUSPolicy=2
@@ -127,7 +132,7 @@ navicUsedInUSPolicy=2
 # DFS: 0 = Disabled, 1 = Enabled (default)
 Chip_Configuration_FeatureCfg_DVS = 1
 Chip_Configuration_FeatureCfg_DFS = 1
-# Disable MTPL
+# MTPL: 0 = Disabled, 1 = Enabled
 Chip_Configuration_FeatureCfg_MTPL = 1
 # MCW Link failure behavior: 0 = SW Assert (default), 1 = GNSS restart (hot start)
 Chip_Configuration_FeatureCfg_SDL_BYASS = 1
diff --git a/powerhint-comet.json b/powerhint-comet.json
index 11e9447..6877507 100644
--- a/powerhint-comet.json
+++ b/powerhint-comet.json
@@ -958,6 +958,7 @@
         "102400",
         "0"
       ],
+      "WriteOnly": true,
       "ResetOnInit": false
     },
     {