diff --git a/android/2.1/AGnss.cpp b/android/2.1/AGnss.cpp
index c759492..ce7b3aa 100644
--- a/android/2.1/AGnss.cpp
+++ b/android/2.1/AGnss.cpp
@@ -32,7 +32,7 @@
 
 static AGnss* spAGnss = nullptr;
 
-AGnss::AGnss(Gnss* gnss) : mGnss(gnss) {
+AGnss::AGnss(Gnss* gnss) : mGnss(gnss), mType(LOC_AGPS_TYPE_INVALID) {
     spAGnss = this;
 }
 
@@ -51,6 +51,9 @@
     V2_0::IAGnssCallback::AGnssType  aType;
     IAGnssCallback::AGnssStatusValue aStatus;
 
+    // cache the AGps Type
+    mType = type;
+
     switch (type) {
     case LOC_AGPS_TYPE_SUPL:
         aType = IAGnssCallback::AGnssType::SUPL;
@@ -138,18 +141,20 @@
 Return<bool> AGnss::dataConnOpen(uint64_t /*networkHandle*/, const hidl_string& apn,
         V2_0::IAGnss::ApnIpType apnIpType) {
 
-    if(mGnss == nullptr || mGnss->getGnssInterface() == nullptr){
+    if (mGnss == nullptr || mGnss->getGnssInterface() == nullptr){
         LOC_LOGE("Null GNSS interface");
         return false;
     }
 
-    /* Validate */
-    if(apn.empty()){
-        LOC_LOGE("Invalid APN");
-        return false;
+    std::string apnString(apn.c_str());
+    // During Emergency SUPL, an apn name of "sos" means that no
+    // apn was found, like in the simless case, so apn is cleared
+    if (LOC_AGPS_TYPE_SUPL_ES == mType && "sos" == apnString) {
+        LOC_LOGD("dataConnOpen APN name = [sos] cleared");
+        apnString.clear();
     }
 
-    LOC_LOGD("dataConnOpen APN name = [%s]", apn.c_str());
+    LOC_LOGD("dataConnOpen APN name = [%s]", apnString.c_str());
 
     AGpsBearerType bearerType;
     switch (apnIpType) {
@@ -168,7 +173,7 @@
     }
 
     mGnss->getGnssInterface()->agpsDataConnOpen(
-        LOC_AGPS_TYPE_SUPL, apn.c_str(), apn.size(), (int)bearerType);
+        LOC_AGPS_TYPE_SUPL, apnString.c_str(), apnString.size(), (int)bearerType);
     return true;
 }
 
diff --git a/android/2.1/AGnss.h b/android/2.1/AGnss.h
index f6ea997..cf9c8a7 100644
--- a/android/2.1/AGnss.h
+++ b/android/2.1/AGnss.h
@@ -67,6 +67,8 @@
  private:
     Gnss* mGnss = nullptr;
     sp<V2_0::IAGnssCallback> mAGnssCbIface = nullptr;
+
+    AGpsExtType mType;
 };
 
 }  // namespace implementation
diff --git a/gnss/Agps.cpp b/gnss/Agps.cpp
index 9255f88..4344a6f 100644
--- a/gnss/Agps.cpp
+++ b/gnss/Agps.cpp
@@ -448,7 +448,7 @@
         mAPN  = NULL;
     }
 
-    if (NULL == apn || len <= 0 || len > MAX_APN_LEN || strlen(apn) != len) {
+    if (NULL == apn || len > MAX_APN_LEN || strlen(apn) != len) {
         LOC_LOGD("Invalid apn len (%d) or null apn", len);
         mAPN = NULL;
         mAPNLen = 0;
diff --git a/gnss/Agps.h b/gnss/Agps.h
index 6b43bf5..8a27cd9 100644
--- a/gnss/Agps.h
+++ b/gnss/Agps.h
@@ -167,7 +167,7 @@
 
     /* Getter/Setter methods */
     void setAPN(char* apn, unsigned int len);
-    inline char* getAPN() const { return (char*)mAPN; }
+    inline char* getAPN() const { return mAPN; }
     inline uint32_t getAPNLen() const { return mAPNLen; }
     inline void setBearer(AGpsBearerType bearer) { mBearer = bearer; }
     inline LocApnTypeMask getApnTypeMask() const { return mApnTypeMask; }
diff --git a/gnss/GnssAdapter.cpp b/gnss/GnssAdapter.cpp
index dbc9fc0..ee5a7d7 100644
--- a/gnss/GnssAdapter.cpp
+++ b/gnss/GnssAdapter.cpp
@@ -5259,8 +5259,7 @@
     };
     // Added inital length checks for apnlen check to avoid security issues
     // In case of failure reporting the same
-    if (NULL == apnName || apnLen <= 0 || apnLen > MAX_APN_LEN ||
-            (strlen(apnName) != (unsigned)apnLen)) {
+    if (NULL == apnName || apnLen > MAX_APN_LEN || (strlen(apnName) != (unsigned)apnLen)) {
         LOC_LOGe("%s]: incorrect apnlen length or incorrect apnName", __func__);
         mAgpsManager.reportAtlClosed(agpsType);
     } else {