MuntashirAkon/AppManager · error · IOException

ADB pairing failed

Error message

ADB pairing failed

What it means

pairAndReport() rethrows the failure of the ADB wireless-pairing task submitted to sPairingExecutor. The underlying pair(host, port, pairingCode) — an mDNS/TLS pairing handshake with the device — failed, commonly because the pairing code was wrong or expired, the port changed, or the device dropped the pairing socket. The generic catch converts any cause into this reported error.

Solutions

1. Ask the user to re-enter the pairing code and re-run pairing before the dialog expires
2. Confirm both devices are on the same Wi-Fi network and mDNS is reachable
3. Check the device's wireless debugging screen for the current port and retry
4. Log/inspect the underlying cause exception for TLS or IO specifics

When it happens

Trigger: Thrown at app/src/main/java/io/github/muntashirakon/AppManager/adb/AdbConnectionManager.java:89 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of MuntashirAkon/AppManager@0152f468fc (2026-09-12). Data as JSON: /api/errors/3010cc2017b3b543. Report an issue: GitHub.

Appendix: source

Thrown at app/src/main/java/io/github/muntashirakon/AppManager/adb/AdbConnectionManager.java:89

    public static synchronized PairingSession getPairingSession() {
        return sPairingSession;
    }

    public static synchronized void endPairingSession(@NonNull PairingSession session) {
        if (sPairingSession == session) {
            sPairingSession = null;
        }
    }

    @WorkerThread
    public void pairAndReport(@NonNull PairingSession session, @NonNull String host, int port,
                              @NonNull String pairingCode) throws Exception {
        try {
            Future<Boolean> pairingTask = sPairingExecutor.submit(() -> pair(host, port, pairingCode));
            try {
                if (!awaitPairingAttempt(pairingTask, PAIRING_ATTEMPT_TIMEOUT_MILLIS,
                        TimeUnit.MILLISECONDS)) {
                    throw new IOException("ADB pairing failed");
                }
            } catch (SocketTimeoutException | InterruptedException e) {
                discardInstance(this);
                throw e;
            }
            session.reportSuccess();
        } catch (Exception e) {
            Log.w(TAG, "Pairing failed.", e);
            session.reportFailure(e);
            throw e;
        }
    }

    private static synchronized void discardInstance(@NonNull AdbConnectionManager instance) {
        if (sInstance == instance) {
            // The library serialises operations on each manager. Do not let a stuck pairing
            // operation block every later ADB connection through the same instance.
            sInstance = null;

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