fix: close existing HID connections before opening new ones

Author: overcat

src/components/SignIn/SignInLedgerForm.tsx

@@ -126,6 +126,16 @@ export const SignInLedgerForm = ({ onClose }: ModalPageProps) => {
   const handleConnect = async () => {
     setErrorMessage("");
     try {
+      // Close existing connections to avoid "device already open" error
+      const existingTransports = await TransportWebHID.list();
+      await Promise.all(
+        existingTransports.map((existingTransport) =>
+          existingTransport.close().catch(() => {
+            // Ignore close errors - device might already be closed
+          }),
+        ),
+      );
+
       const transport = await TransportWebHID.request();
       dispatch(fetchLedgerStellarAddressAction({ ledgerBipPath, transport }));
     } catch (e) {

src/helpers/signLedgerTransaction.ts

@@ -7,6 +7,16 @@ export const signLedgerTransaction = async (
   publicKey: string,
   bipPath: string,
 ) => {
+  // Close existing connections to avoid "device already open" error
+  const existingTransports = await TransportWebHID.list();
+  await Promise.all(
+    existingTransports.map((existingTransport) =>
+      existingTransport.close().catch(() => {
+        // Ignore close errors - device might already be closed
+      }),
+    ),
+  );
+
   const transport = await TransportWebHID.create();
   const ledgerApi = new LedgerApi(transport);
   const result = await ledgerApi.signTransaction(