diff --git a/RX_FSK/src/Display.cpp b/RX_FSK/src/Display.cpp
index d8553e0..4a1b293 100644
--- a/RX_FSK/src/Display.cpp
+++ b/RX_FSK/src/Display.cpp
@@ -1731,7 +1731,13 @@ void Display::drawBatt(DispEntry *de) {
 		} else {
 		  val = pmu->getVbusVoltage();
 		}
-		if(val<0) { *buf=0; break; }
+		if(val<0) { // make sure to clear old text...
+ 		    int len = strlen(de->extra)-1 + 4;
+		    strcpy(buf, "                    ");
+                    if(len>29) len=29;
+                    buf[len] = 0;
+                    break;
+		}
 		snprintf(buf, 30, "%.2f%s", val/1000, de->extra+1);
 	        Serial.printf("Vbus: %s\n", buf);
 		break;
@@ -1844,19 +1850,23 @@ void Display::updateDisplay() {
 // Called when key is pressed or new RX starts
 void Display::dispsavectlON() {
 	// nothing to do to turn display on, may add power on code here later
+        Serial.println("DISP SAVE: ON");
 	dispstate = 1;
 }
 
 // Should be called 1x / sec to update display
 // parameter: rxactive (1=currently receiving something, 0=no rx)
 void Display::dispsavectlOFF(int rxactive) {
+        Serial.printf("DISP SAVE: OFF %d (state is %d)\n", rxactive, dispstate);
 	if( sonde.config.dispsaver == 0 ) return;  // screensaver disabled
 	if( dispstate == 0 ) return; // already OFF
 	if( rxactive && ((sonde.config.dispsaver%10)==2) ) return; // OFF only if no RX, but rxactive is 0
 	dispstate++;
+        Serial.printf("dispstate is %d\n", dispstate);
 	if( dispstate > (sonde.config.dispsaver/10) ) {
 		rdis->clear();
 		dispstate = 0;
+		Serial.println("Clearning display");
 	}
 }
 
diff --git a/RX_FSK/src/pmu.cpp b/RX_FSK/src/pmu.cpp
index d35a312..5544d75 100644
--- a/RX_FSK/src/pmu.cpp
+++ b/RX_FSK/src/pmu.cpp
@@ -188,7 +188,7 @@ int AXP192PMU::init() {
         enableLDO3();
         // ADC configuration: Enable monitoring of USB [bits 2,3 in enable register]
         uint8_t val = readRegister(AXP192_ADC_EN1);
-        writeRegister(AXP192_ADC_EN1, val | (1 << 4) | (1 << 5) );
+        writeRegister(AXP192_ADC_EN1, val | (1 << 2) | (1 << 3) );
     }
     // Common configuration for T-Beam and M5 Core2
     // DCDC2: M5Core: Unused, T-Beam: Unused, so set to disabled!! (was enabled in previous versions)
@@ -338,7 +338,9 @@ float AXP192PMU::getBattChargeCurrent() {
 
 #define AXP192_ACIN_VOLTAGE_STEP                (1.7F)
 float AXP192PMU::getAcinVoltage() {
-    return readRegisters_8_4(AXP192_ACIN_VOL_H8, AXP192_ACIN_VOL_L4) * AXP192_ACIN_VOLTAGE_STEP;
+    float f = readRegisters_8_4(AXP192_ACIN_VOL_H8, AXP192_ACIN_VOL_L4) * AXP192_ACIN_VOLTAGE_STEP;
+    Serial.printf("Acin: %f\n", f);
+    return f;
 }
 
 #define AXP192_ACIN_CUR_STEP                    (0.625F)
@@ -348,7 +350,9 @@ float AXP192PMU::getAcinCurrent() {
 
 #define AXP192_VBUS_VOLTAGE_STEP                (1.7F)
 float AXP192PMU::getVbusVoltage() {
-    return readRegisters_8_4(AXP192_VBUS_VOL_H8, AXP192_VBUS_VOL_L4) * AXP192_VBUS_VOLTAGE_STEP;
+    float f= readRegisters_8_4(AXP192_VBUS_VOL_H8, AXP192_VBUS_VOL_L4) * AXP192_VBUS_VOLTAGE_STEP;
+    Serial.printf("Vbus: %f\n", f);
+    return f;
 }
 
 #define AXP192_VBUS_CUR_STEP                    (0.375F)