diff --git a/components/AmountInput.tsx b/components/AmountInput.tsx
index 79bcafdeb..9f991402c 100644
--- a/components/AmountInput.tsx
+++ b/components/AmountInput.tsx
@@ -80,9 +80,10 @@ export default class AmountInput extends React.Component<
     constructor(props: any) {
         super(props);
 
-        const { amount } = props;
+        const { amount, onAmountChange } = props;
         let satAmount = '0';
         if (amount) satAmount = getSatAmount(amount).toString();
+        onAmountChange(amount, satAmount);
         this.state = {
             satAmount
         };
@@ -124,7 +125,9 @@ export default class AmountInput extends React.Component<
         return (
             <React.Fragment>
                 {title && (
-                    <TouchableOpacity onPress={() => this.onChangeUnits()}>
+                    <TouchableOpacity
+                        onPress={() => !locked && this.onChangeUnits()}
+                    >
                         <Text
                             style={{
                                 fontFamily: 'Lato-Regular',
@@ -160,10 +163,12 @@ export default class AmountInput extends React.Component<
                               units === 'fiat' &&
                               getSymbol().symbol
                     }
-                    toggleUnits={this.onChangeUnits}
+                    toggleUnits={() => !locked && this.onChangeUnits()}
                 />
                 {!hideConversion && (
-                    <TouchableOpacity onPress={() => this.onChangeUnits()}>
+                    <TouchableOpacity
+                        onPress={() => !locked && this.onChangeUnits()}
+                    >
                         <View style={{ marginBottom: 10 }}>
                             {fiat !== 'Disabled' && units !== 'fiat' && (
                                 <Amount sats={satAmount} fixedUnits="fiat" />
diff --git a/views/Receive.tsx b/views/Receive.tsx
index 4f9815074..dd7b0e788 100644
--- a/views/Receive.tsx
+++ b/views/Receive.tsx
@@ -122,11 +122,11 @@ export default class Receive extends React.Component<
         const settings = await getSettings();
 
         this.setState({
-            addressType: settings.invoices.addressType || '1',
-            memo: settings.invoices.memo || '',
-            expiry: settings.invoices.expiry || '3600',
-            routeHints: settings.invoices.routeHints || false,
-            ampInvoice: settings.invoices.ampInvoice || false
+            addressType: settings?.invoices?.addressType || '1',
+            memo: settings?.invoices?.memo || '',
+            expiry: settings?.invoices?.expiry || '3600',
+            routeHints: settings?.invoices?.routeHints || false,
+            ampInvoice: settings?.invoices?.ampInvoice || false
         });
 
         const lnOnly =
@@ -165,15 +165,18 @@ export default class Receive extends React.Component<
         }
 
         if (lnurl) {
+            this.props.UnitsStore.resetUnits();
             this.setState({
                 memo: lnurl.defaultDescription,
-                value: (lnurl.maxWithdrawable / 1000).toString()
+                value: (lnurl.maxWithdrawable / 1000).toString(),
+                satAmount: getSatAmount(lnurl.maxWithdrawable / 1000)
             });
         }
 
         if (amount) {
             this.setState({
-                value: amount
+                value: amount,
+                satAmount: getSatAmount(amount)
             });
         }
 
@@ -203,13 +206,22 @@ export default class Receive extends React.Component<
         const { reset } = InvoicesStore;
 
         reset();
+        const amount: string = navigation.getParam('amount');
         const lnurl: LNURLWithdrawParams | undefined =
             navigation.getParam('lnurlParams');
 
+        if (amount) {
+            this.setState({
+                value: amount,
+                satAmount: getSatAmount(amount)
+            });
+        }
+
         if (lnurl) {
             this.setState({
                 memo: lnurl.defaultDescription,
-                value: (lnurl.maxWithdrawable / 1000).toString()
+                value: (lnurl.maxWithdrawable / 1000).toString(),
+                satAmount: getSatAmount(lnurl.maxWithdrawable / 1000)
             });
         }
     }
diff --git a/views/handleAnythingQRScanner.tsx b/views/handleAnythingQRScanner.tsx
index 658087251..9e84654d1 100644
--- a/views/handleAnythingQRScanner.tsx
+++ b/views/handleAnythingQRScanner.tsx
@@ -41,8 +41,8 @@ export default class handleAnythingQRScanner extends React.Component<
                 this.setState({
                     loading: false
                 });
-                const [route, props] = response;
-                if (route) {
+                if (response) {
+                    const [route, props] = response;
                     navigation.navigate(route, props);
                 } else {
                     navigation.goBack();