diff --git a/Sources/RemoteBuddy/Audio/AudioOutput.swift b/Sources/RemoteBuddy/Audio/AudioOutput.swift
index 8d4a5e0..4162d44 100644
--- a/Sources/RemoteBuddy/Audio/AudioOutput.swift
+++ b/Sources/RemoteBuddy/Audio/AudioOutput.swift
@@ -229,6 +229,7 @@ final class AudioOutput {
 
     private func scheduleRecovery() {
         guard enabled else { return }
+        logger.notice("Audio configuration changed running=\(self.engine?.isRunning == true) currentDevice=\(self.currentDevice()) configuredDevice=\(self.configuredDevice)")
         recoveryWork?.cancel()
         let work = DispatchWorkItem { [weak self] in self?.recover() }
         recoveryWork = work
diff --git a/Sources/RemoteBuddy/Bluetooth/BLEController.swift b/Sources/RemoteBuddy/Bluetooth/BLEController.swift
index e1e4570..9e2c714 100644
--- a/Sources/RemoteBuddy/Bluetooth/BLEController.swift
+++ b/Sources/RemoteBuddy/Bluetooth/BLEController.swift
@@ -192,6 +192,7 @@ final class BLEController: NSObject, CBCentralManagerDelegate, CBPeripheralDeleg
         if characteristic.uuid == audioUUID {
             receiveAudio(data)
         } else if characteristic.uuid == control || characteristic.uuid == command {
+            audioDiagnostics.notice("ATVV control=\(data.map { String(format: "%02X", $0) }.joined(separator: " "), privacy: .public)")
             handle(session.parseControl(data))
         }
     }
@@ -227,7 +228,10 @@ final class BLEController: NSObject, CBCentralManagerDelegate, CBPeripheralDeleg
             }
             onStatus?(L10n.tr("已就绪 · 按住语音键说话"))
         case .startSearch:
-            guard !shortcutsSuspended else { return }
+            // Firmware 26.2 sends START_SEARCH immediately after the HTT
+            // AUDIO_START for the same physical press. Keep that gesture until
+            // AUDIO_STOP/release so it can become a hold or reopen on a tap.
+            guard !shortcutsSuspended, !voiceGesture.isPressed else { return }
             handleTap()
         case .audioSync(let codec, let sequence, let predictor, let stepIndex):
             audioDiagnostics.notice("Voice sync codec=\(codec.rawValue) sourceRate=\(codec.sampleRate) sequence=\(sequence)")
@@ -272,6 +276,9 @@ final class BLEController: NSObject, CBCentralManagerDelegate, CBPeripheralDeleg
             onStreaming?(true)
             onStatus?(shortcutsSuspended ? L10n.tr("按键设置：正在识别语音键") : L10n.tr("正在传输遥控器麦克风"))
         case .audioStop(let reason):
+            // MIC_CLOSE can produce another AUDIO_STOP even when already idle.
+            // Ignore duplicate acknowledgements instead of starting a close loop.
+            guard streaming || voiceGesture.isPressed || voiceGesture.toggleActive else { return }
             let frames = streamFrameCount
             let peak = streamPeak
             audioDiagnostics.notice("Voice stop reason=\(reason) packets=\(self.receivedAudioPackets) decodedFrames=\(frames) peak=\(peak) suspended=\(self.shortcutsSuspended) \(self.audio.diagnosticSummary, privacy: .public)")
@@ -433,7 +440,9 @@ final class BLEController: NSObject, CBCentralManagerDelegate, CBPeripheralDeleg
             cancelPendingWork()
             _ = voiceGesture.reset()
         } else {
-            resetVoice()
+            // The remote has already stopped. Sending MIC_CLOSE here makes its
+            // acknowledgement trigger another reset/close indefinitely.
+            resetVoice(closeMicrophone: false)
         }
     }
 
diff --git a/Tests/RemoteBuddyTests/VoiceRecoveryTests.swift b/Tests/RemoteBuddyTests/VoiceRecoveryTests.swift
index ddb9742..8479476 100644
--- a/Tests/RemoteBuddyTests/VoiceRecoveryTests.swift
+++ b/Tests/RemoteBuddyTests/VoiceRecoveryTests.swift
@@ -193,6 +193,100 @@ final class VoiceRecoveryTests: XCTestCase {
         ble.stop()
     }
 
+    func testRemoteStopDoesNotEchoCloseAndNextHoldStillWorks() {
+        let audio = AudioOutput()
+        let keyboard = Keyboard()
+        var commands: [Data] = []
+        let ble = controller(audio, keyboard) { commands.append($0) }
+        ble.handle(.audioStart(reason: 3, codec: .adpcm16k, streamID: 1))
+        ble.handle(.audioStop(reason: 0))
+        XCTAssertTrue(commands.isEmpty)
+        for _ in 0..<10 { ble.handle(.audioStop(reason: 0)) }
+        XCTAssertTrue(commands.isEmpty)
+        XCTAssertEqual(keyboard.taps, 0)
+
+        ble.handle(.audioStart(reason: 3, codec: .adpcm16k, streamID: 2))
+        let held = expectation(description: "next hold survives stop acknowledgements")
+        DispatchQueue.main.asyncAfter(deadline: .now() + 0.6) { held.fulfill() }
+        wait(for: [held], timeout: 1.5)
+        XCTAssertEqual(keyboard.holds, [true])
+        ble.handle(.audioStop(reason: 0))
+        XCTAssertEqual(keyboard.holds, [true, false])
+        XCTAssertTrue(commands.isEmpty)
+        ble.stop()
+    }
+
+    func testHTTSearchCompanionPreservesHoldUntilRelease() {
+        let audio = AudioOutput()
+        let keyboard = Keyboard()
+        var commands: [Data] = []
+        let ble = controller(audio, keyboard) { commands.append($0) }
+        ble.handle(.audioStart(reason: 3, codec: .adpcm16k, streamID: 4))
+        ble.handle(.startSearch)
+        XCTAssertEqual(keyboard.taps, 0)
+        let held = expectation(description: "HTT still becomes a hold")
+        DispatchQueue.main.asyncAfter(deadline: .now() + 0.6) { held.fulfill() }
+        wait(for: [held], timeout: 1.5)
+        XCTAssertEqual(keyboard.holds, [true])
+        XCTAssertTrue(commands.isEmpty)
+        ble.handle(.audioStop(reason: 2))
+        ble.checkVoiceHealth()
+        XCTAssertEqual(keyboard.holds, [true, false])
+        XCTAssertEqual(keyboard.taps, 0)
+        ble.stop()
+    }
+
+    func testHTTSearchCompanionReopensTapAndRecordsPastTimeout() {
+        let audio = AudioOutput()
+        let keyboard = Keyboard()
+        var commands: [Data] = []
+        let ble = controller(audio, keyboard) { commands.append($0) }
+        ble.handle(.audioStart(reason: 3, codec: .adpcm16k, streamID: 5))
+        ble.handle(.startSearch)
+        ble.handle(.audioStop(reason: 2))
+        XCTAssertEqual(keyboard.taps, 1)
+        let reopened = expectation(description: "release requests persistent microphone")
+        DispatchQueue.main.asyncAfter(deadline: .now() + 0.15) { reopened.fulfill() }
+        wait(for: [reopened], timeout: 1)
+        XCTAssertEqual(commands, [Data([0x0c, 0x00])])
+        ble.handle(.audioStart(reason: 0, codec: .adpcm16k, streamID: 0))
+        let now = ProcessInfo.processInfo.systemUptime
+        for second in 0..<12 {
+            ble.receiveAudio(Data([0x00]), at: now + Double(second))
+            ble.checkVoiceHealth(now: now + Double(second) + 0.5)
+        }
+        XCTAssertEqual(keyboard.taps, 1)
+        // The companion event on the next press must not start a new toggle.
+        ble.handle(.audioStart(reason: 3, codec: .adpcm16k, streamID: 6))
+        ble.handle(.startSearch)
+        ble.handle(.audioStop(reason: 2))
+        ble.checkVoiceHealth(now: ProcessInfo.processInfo.systemUptime + 2.1)
+        XCTAssertEqual(keyboard.taps, 2)
+        XCTAssertEqual(keyboard.holds, [])
+        ble.stop()
+        XCTAssertEqual(keyboard.taps, 2)
+    }
+
+    func testDuplicateStopPreservesBufferedTailAndDoesNotSendClose() {
+        let audio = AudioOutput()
+        let keyboard = Keyboard()
+        var commands: [Data] = []
+        let ble = controller(audio, keyboard) { commands.append($0) }
+        ble.handle(.audioStart(reason: 3, codec: .adpcm16k, streamID: 1))
+        audio.feed([123], sampleRate: 16000)
+        ble.handle(.audioStop(reason: 2))
+        ble.handle(.audioStart(reason: 0, codec: .adpcm16k, streamID: 0))
+        ble.handle(.startSearch)
+        let closeCount = commands.count
+        for _ in 0..<10 { ble.handle(.audioStop(reason: 0)) }
+        XCTAssertEqual(commands.count, closeCount)
+        XCTAssertEqual(audio.queuedSamples, 1)
+        XCTAssertEqual(keyboard.taps, 1)
+        ble.checkVoiceHealth(now: ProcessInfo.processInfo.systemUptime + 2.1)
+        XCTAssertEqual(keyboard.taps, 2)
+        ble.stop()
+    }
+
     func testTransportWatchdogUsesArrivalNotVolumeAndInvalidatesTasks() {
         var watchdog = VoiceSessionWatchdog()
         let generation = watchdog.generation