diff --git a/src/lib/capacitorAmberSigner.ts b/src/lib/capacitorAmberSigner.ts
index 072dacb..2720841 100644
--- a/src/lib/capacitorAmberSigner.ts
+++ b/src/lib/capacitorAmberSigner.ts
@@ -21,7 +21,10 @@ async function getPlugin() {
   try {
     const { NostrSignerPlugin } = await import('nostr-signer-capacitor-plugin');
     if (!NostrSignerPlugin) return null;
-    // setPackageName(packageName: string) — plain string, first arg
+    // JS layer does: native.setPackageName({ packageName })
+    // so the JS wrapper expects a plain string which it wraps into { packageName }
+    // BUT the JS source shows: async setPackageName(packageName) { native.setPackageName({ packageName }) }
+    // So we pass plain string to the JS wrapper — it handles the wrapping
     await NostrSignerPlugin.setPackageName(AMBER_PACKAGE);
     return NostrSignerPlugin;
   } catch (e: unknown) {
@@ -35,22 +38,28 @@ async function getPlugin() {
 
 /**
  * Login: get public key from Amber.
- * getPublicKey(packageName, permissions?)
- * Returns { npub: string }
+ *
+ * The plugin tries Content Resolver first (silent, returns cached key),
+ * then falls back to opening Amber UI if no cached result.
+ *
+ * The Java bridge calls npubToHex() before returning, so the "npub" field
+ * is actually a hex pubkey string despite the misleading name.
  */
 export async function getAmberPublicKeyViaPlugin(): Promise<string> {
   const plugin = await getPlugin();
   if (!plugin) throw new Error('Capacitor Amber plugin not available — are you on a native build?');
 
-  const { npub } = await plugin.getPublicKey(AMBER_PACKAGE);
+  // Pass null as packageName to skip the Content Resolver silent path
+  // and always open the Amber UI so the user explicitly selects their key.
+  // This prevents returning a stale/wrong cached key.
+  const { npub } = await plugin.getPublicKey(null);
 
-  // Despite the field being called "npub", the Java bridge calls npubToHex()
-  // before returning — so this is actually a hex pubkey already.
+  // The "npub" field is actually hex (Java calls npubToHex before returning)
   if (/^[0-9a-f]{64}$/i.test(npub)) {
     return npub.toLowerCase();
   }
 
-  // Fallback: if it somehow comes back as a real npub, decode it
+  // Fallback: handle real npub just in case
   const decoded = nip19.decode(npub);
   if (decoded.type !== 'npub') throw new Error('Unexpected key format from Amber');
   return decoded.data as string;