Always begin by verifying your software and firmware versions. Keeping the 778S firmware and the Mission 778S app updated can often solve many setup and streaming problems.
1) MCU Firmware (manual update via USB)
This controls the front panel, display, buttons, and core system functions. MCU firmware updates are not automatic.
If required, they are performed manually using a USB storage device connected to the rear MCU Update port. MCU updates are only released when necessary and will be accompanied by specific instructions on the Mission website or via dealer support.
The latest MCU Firmware will always be available on our support page: https://www.mission.co.uk/downloads/
We’ll only ever share the latest version online.
Follow the instructions included in the update package to update your unit to the latest firmware.
2) Streaming Module Firmware
This controls the network, Wi-Fi, and streaming services.
Updates are delivered automatically over the network (OTA). This cannot be updated by USB (like the MCU firmware). The app will notify you when an OTA update is available or required.
Yes. The 778S can receive firmware updates over the air. The device automatically checks for updates periodically. When a new firmware is available, you’ll see a ‘New FW Available’ message after the ‘About’ section in the 778S App. Simply tap there, choose ‘Upgrade Firmware,’ and wait for the process to complete. The app also makes it easy to see if an update is available, with a notification icon on the menu.
Visit the Apple App Store or Google Play Store and ensure the Mission 778S app is fully up to date.
If issues persist:
- Delete the app
- Reinstall it
- Restart your phone or tablet before reopening the app
First, check that:
Your phone or tablet is connected to the same network as the 778S
The 778S display shows:
- An Ethernet icon (for wired connections), or
- A solid Wi-Fi icon (for wireless connections)
If the device still does not appear, restart the 778S, your router, and your phone or tablet. If the problem persists, restart your wi-if network as per the following section:
- Power off the 778S using the rear power switch.
- Restart your router.
- Restart your phone or tablet.
- Power the 778S back on and wait until it has fully initialised before opening the app.
If AP Mode setup fails:
- Ensure AP Mode is shown on the 778S display.
- If not, hold the WPS button for 6 seconds to re-enter AP Mode.
- Open your phone’s Wi-Fi settings and connect to 778S-XXXX.
- Return to the Mission 778S app and continue setup.
- Confirm your router supports WPS.
- Try reversing the button order:
- Press WPS on the router first, then on the 778S.
- If WPS fails, we recommend using AP Mode or Ethernet, which are more reliable and stable.
Yes, but setup issues can occur if your phone and the 778S are on different bands.
During setup:
- Ensure both devices are connected to the same Wi-Fi band
- If available, enable a combined or “smart” SSID on your router
- Confirm the correct analogue or digital outputs are connected to the correct input of your integrated amplifier or preamplifier.
- Check your interconnects are securely fitted and test with alternative interconnects, if available.
- Check volume levels on both the 778S and your amplifier (make sure the your amplifier volume is low before raising the 778S output level to prevent damage to your system).
- Ensure the correct streaming source is selected in the app.
- Use Ethernet instead of Wi-Fi where possible. Due to the high bandwidth of high-resolution audio files, slower or congested Wi-Fi networks can struggle to support the file sizes.
- Reduce network congestion (pause large downloads or video streaming).
- Position the Wi-Fi antenna vertically and away from other electronics.
A streaming service isn’t working. What should I do?
- Ensure the service is enabled in the app’s feature selection
- Confirm your account is active and logged in
- Some services will require your phone and the 778S to be on the same local network
A factory reset should only be used as a last resort.
Access the menu on the 778S via the ‘Menu’ button on the remote control. Navigate to the ‘Reset’ option and select ‘Reset’. Note that doing so will reset all device settings.
For the best experience and most stable connection, we recommend using a wired Ethernet connection for reliable setup, firmware updates, and streaming performance.
Need help? We’re here for you. If you’re still facing issues:
– Reach out to your Authorised Mission Dealer or local distributor where you purchased the device.
– Or, fill out the Mission ‘Contact Us’ form. Your message will be directed to your local representative who can assist you further.