The Sync Box does not send notifications, but you can be notified about its state through the Hue app and platforms. In the Hue app, check the notification permission and the box's status in its settings, and in Apple Home, Google or Alexa a sync automation can trigger alerts you configure there. If you expected an update or connection alert and got none, check the phone allows notifications for the Hue app, turn off Do Not Disturb and remove battery limits.
The checks in more detail
Check the Bridge and Sync Box are online. If your lights should react to a game or film and do not, that is a sync fault, not a notification, so use the sync steps: check the entertainment area, sync mode and HDMI chain. If an automation should start sync when the TV turns on, check CEC and the platform automation.
Independent guides note the box can switch inputs on its own or the TV can power off randomly when CEC interacts, which looks like odd alerts; turn CEC off temporarily to test. If alerts come late, the phone's power saving is likely. Keep the Hue app and box firmware up to date. Test with the phone unlocked and then locked to see whether the fault is the phone. If one phone gets alerts and another does not, the fault is that phone.
Add a second person to alerts. If the lights flash or change unexpectedly, that is usually a sync mode or an automation, not a fault, and checking the mode in the app answers it quickly. A reviewer reported audio cutting out and the TV turning off with the box in the chain, so if alerts about odd behavior appear, test the chain with the box bypassed to see whether it is the cause.
Differential
Likely causes of “Hue Play HDMI sync box 8K notifications are late, missing or excessive”, and how to tell them apart
- 1
Notifications blocked
What separates it No alerts show in the app because notifications are blocked for it on the phone
How to confirm Allow notifications for the Hue app in the phone's settings and check Do Not Disturb
- 2
An offline box or Bridge
What separates it No events arrive because the box or the Bridge is offline and cannot report
How to confirm Fix the connection so that the box and the Bridge show as online in the app
- 3
CEC conflicts
What separates it Inputs switch oddly or the TV turns off because CEC settings interact between devices
How to confirm Turn CEC off to test, and see whether the odd switching stops
- 4
A missing platform link
What separates it An automation alert never arrives because the platform is not linked to Hue
How to confirm Link the platform in Settings, Smart Home so that its automations can use the box
- 5
Phone power saving
What separates it Alerts come late because the phone limits the Hue app when it runs in the background
How to confirm Remove the battery limits for the Hue app so that it can receive alerts promptly
Before you touch a setting
Record this first — changing settings destroys the evidence
- Which alert or event you expected and did not get
- The notification and battery settings on the phone
- Whether the box and the Bridge are online
- Whether CEC is switched on for the TV and box
Try in this order
0 of 7 completedAllow notifications
ReversibleAllow notifications for the Hue app on the phone, and make sure a focus mode is not hiding them.
Check the box and Bridge online
ReversibleCheck the box and Bridge are online in the app, since an offline device cannot report its status.
Turn CEC off to test
ReversibleTurn CEC off to test if input switching is odd, because CEC can make the TV and box control each other.
Link the platform
ReversibleLink the platform for automations if you want alerts from Apple Home, Google Home or Alexa.
Remove battery limits
ReversibleRemove battery limits for the Hue app on the phone, so that it is not put to sleep in the background.
Update the app and box
ReversibleUpdate the Hue app and the box firmware, since updates often improve how events and alerts are handled.
Contact Hue
ReversibleContact Hue if none arrive, and tell them which alert you expected and the settings you checked.
Model-specific
What is true of this model and not of its siblings
- CEC
- Can cause input switching and TV power changes.
- Alerts
- Come from the app or platforms.
Stop boundary
When this stops being a self-service repair
- !If alerts never arrive, contact Philips Hue support
- !If input switching is odd, check the CEC settings on each device
- !If lights do not sync, use the sync steps
Evidence ledger
Sources behind this answer
Ports, formats, warranty and specifications.
Sync fixes.
Sync problems.
HDCP, cables and Enhanced format.
The company and its products.
Exact questions
Common questions
Does the box send notifications?+
The Sync Box does not send notifications itself, but you can be told about its state through the Hue app and platforms.
Why odd input switching?+
Odd input switching is often caused by CEC interactions between the TV, the box and the sources.
Can Do Not Disturb block alerts?+
Yes, Do Not Disturb can block alerts on the phone, so check that it is off or allows Hue.
Should I turn CEC off to test?+
Yes, turn CEC off to test whether it is the cause of odd switching or of the TV powering off.
Are effects alerts?+
No, light effects are not alerts, so do not use them as a warning that something has happened.
Can I use it with a console?+
Yes, it works with a console at 4K 120 Hz when you use the right HDMI cable.