diff --git a/src/main.cpp b/src/main.cpp
index 28504b554..937f9091a 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -263,6 +263,12 @@ void setup()
     // We need to enable 3.3V periphery in order to scan it
     pinMode(PIN_3V3_EN, OUTPUT);
     digitalWrite(PIN_3V3_EN, HIGH);
+
+#ifndef USE_EINK
+    // RAK-12039 set pin for Air quality sensor
+    pinMode(AQ_SET_PIN, OUTPUT);
+    digitalWrite(AQ_SET_PIN, HIGH);
+#endif
 #endif
 
     // Currently only the tbeam has a PMU
diff --git a/src/mesh/NodeDB.cpp b/src/mesh/NodeDB.cpp
index 7c529fe7b..a18d0a7b4 100644
--- a/src/mesh/NodeDB.cpp
+++ b/src/mesh/NodeDB.cpp
@@ -304,10 +304,11 @@ void NodeDB::init()
     int saveWhat = 0;
 
     // likewise - we always want the app requirements to come from the running appload
-    myNodeInfo.min_app_version = 20300; // format is Mmmss (where M is 1+the numeric major number. i.e. 20120 means 1.1.20
-
+    myNodeInfo.min_app_version = 20300;         // format is Mmmss (where M is 1+the numeric major number. i.e. 20120 means 1.1.20
+    myNodeInfo.max_channels = MAX_NUM_CHANNELS; // tell others the max # of channels we can understand
     // Note! We do this after loading saved settings, so that if somehow an invalid nodenum was stored in preferences we won't
     // keep using that nodenum forever. Crummy guess at our nodenum (but we will check against the nodedb to avoid conflicts)
+    strncpy(myNodeInfo.firmware_version, optstr(APP_VERSION), sizeof(myNodeInfo.firmware_version));
     pickNewNodeNum();
 
     // Set our board type so we can share it with others
@@ -362,7 +363,7 @@ void NodeDB::pickNewNodeNum()
         r = NUM_RESERVED; // don't pick a reserved node number
 
     meshtastic_NodeInfo *found;
-    while ((found = getNode(r))) {
+    while ((found = getNode(r)) && memcmp(found->user.macaddr, owner.macaddr, sizeof(owner.macaddr))) {
         NodeNum n = random(NUM_RESERVED, NODENUM_BROADCAST); // try a new random choice
         LOG_DEBUG("NOTE! Our desired nodenum 0x%x is in use, so trying for 0x%x\n", r, n);
         r = n;
diff --git a/src/platform/nrf52/main-nrf52.cpp b/src/platform/nrf52/main-nrf52.cpp
index 36ddefeb4..c630aa13b 100644
--- a/src/platform/nrf52/main-nrf52.cpp
+++ b/src/platform/nrf52/main-nrf52.cpp
@@ -172,6 +172,10 @@ void cpuDeepSleep(uint32_t msecToWake)
     setBluetoothEnable(false);
 #ifdef RAK4630
     digitalWrite(PIN_3V3_EN, LOW);
+#ifndef USE_EINK
+    // RAK-12039 set pin for Air quality sensor
+    digitalWrite(AQ_SET_PIN, LOW);
+#endif
 #endif
     // FIXME, use system off mode with ram retention for key state?
     // FIXME, use non-init RAM per
@@ -197,4 +201,4 @@ void clearBonds()
         nrf52Bluetooth->setup();
     }
     nrf52Bluetooth->clearBonds();
-}
+}
\ No newline at end of file
diff --git a/variants/rak4631/variant.h b/variants/rak4631/variant.h
index 69a77a029..fe9f062c8 100644
--- a/variants/rak4631/variant.h
+++ b/variants/rak4631/variant.h
@@ -258,6 +258,7 @@ SO GPIO 39/TXEN MAY NOT BE DEFINED FOR SUCCESSFUL OPERATION OF THE SX1262 - TG
 #define PIN_ETHERNET_RESET 21
 #define PIN_ETHERNET_SS PIN_EINK_CS
 #define ETH_SPI_PORT SPI1
+#define AQ_SET_PIN 10
 
 #ifdef __cplusplus
 }
@@ -267,4 +268,4 @@ SO GPIO 39/TXEN MAY NOT BE DEFINED FOR SUCCESSFUL OPERATION OF THE SX1262 - TG
  *        Arduino objects - C++ only
  *----------------------------------------------------------------------------*/
 
-#endif
+#endif
\ No newline at end of file