diff --git a/src/gps/GPS.cpp b/src/gps/GPS.cpp
index 5bd542927..516dfe76e 100644
--- a/src/gps/GPS.cpp
+++ b/src/gps/GPS.cpp
@@ -1275,20 +1275,20 @@ GnssModel_t GPS::probe(int serialSpeed)
         memset(&ublox_info, 0, sizeof(ublox_info));
         delay(100);
 
-#ifdef PIN_GPS_RESET
+#if defined(PIN_GPS_RESET) && PIN_GPS_RESET != -1
         digitalWrite(PIN_GPS_RESET, GPS_RESET_MODE); // assert for 10ms
         delay(10);
         digitalWrite(PIN_GPS_RESET, !GPS_RESET_MODE);
 
         // attempt to detect the chip based on boot messages
-        std::vector<ChipInfo> airoha = {
+        std::vector<ChipInfo> passive_detect = {
             {"AG3335", "$PAIR021,AG3335", GNSS_MODEL_AG3335},
             {"AG3352", "$PAIR021,AG3352", GNSS_MODEL_AG3352},
             {"RYS3520", "$PAIR021,REYAX_RYS3520_V2", GNSS_MODEL_AG3352},
             {"UC6580", "UC6580", GNSS_MODEL_UC6580},
             // as L76K is sort of a last ditch effort, we won't attempt to detect it by startup messages for now.
             /*{"L76K", "SW=URANUS", GNSS_MODEL_MTK}*/};
-        GnssModel_t detectedDriver = getProbeResponse(500, airoha, serialSpeed);
+        GnssModel_t detectedDriver = getProbeResponse(500, passive_detect, serialSpeed);
         if (detectedDriver != GNSS_MODEL_UNKNOWN) {
             return detectedDriver;
         }