To pair a Bluetooth headset or speaker with the LG C4, open the sound output settings on the TV, choose the Bluetooth device option and put the accessory in pairing mode. If the TV cannot find it, make sure the accessory is not still connected to a phone, bring it closer and restart the TV and the accessory. A stale pairing is a common cause of trouble, so remove the device from the list and pair it again. The LG C4 can connect to one audio device at a time and sends sound to it instead of the speakers while connected. Bluetooth adds a delay, so lip-sync problems are best fixed with a wired or eARC soundbar, and interference from routers can cause dropouts.
Differential
Likely causes of “LG TV line will not pair with Bluetooth headphones or speakers”, and how to tell them apart
- 1
The accessory is not in pairing mode
What separates it The C4 does not list it
How to confirm Put it in pairing mode and disconnect it from other devices
- 2
A stale pairing
What separates it It shows paired but is silent
How to confirm Remove it and pair again
- 3
Interference
What separates it Dropouts and stutter
How to confirm Move closer and away from routers
- 4
A low accessory battery
What separates it Weak link
How to confirm Charge the accessory
- 5
Latency
What separates it Audio behind the picture
How to confirm Use a low-latency device or a wired soundbar
Before you touch a setting
Record this first — changing settings destroys the evidence
- The accessory and its mode
- Whether it works with a phone
- The webOS version
Try in this order
0 of 5 completedOpen sound output
ReversibleChoose the Bluetooth option in the TV's sound settings.
Put the accessory in pairing mode
ReversibleHold its button until it flashes.
Pick it from the list
ReversibleSelect it and confirm.
Remove old pairings
ReversibleDelete stale entries and pair again.
Update webOS
ReversibleInstall the latest update.
Model-specific
What is true of this model and not of its siblings
- webOS
- Updating webOS improves Bluetooth stability on LG TVs.
- Soundbars
- An eARC soundbar gives better sync than Bluetooth.
- Other models this page answers
- These steps also fit models B3, B4, B5, C2, C3, CX OLED TV, G3, G4, G5, M4, QNED85T, QNED90T, UR9000.
Stop boundary
When this stops being a self-service repair
- !If the TV finds no Bluetooth devices after a restart and an update, contact LG
Evidence ledger
Sources behind this answer
Sound Out and Bluetooth devices.
Pairing steps.
LG's Bluetooth guide.
Software Update menu.
The company and its products.
Exact questions
Common questions
Can the LG C4 connect to two Bluetooth devices?+
It connects to one audio device at a time, though some models support dual output; check the sound settings.
Why is my Bluetooth speaker laggy on the LG C4?+
Bluetooth adds a delay. Use a speaker with low-latency support or an eARC soundbar.
Why does the C4 not find my AirPods?+
Put them in pairing mode with the case button and check they are not connected to a phone.
How do I disconnect a Bluetooth device from the LG C4?+
Open the sound output settings and choose the TV speakers or another output.
Does the Magic Remote use Bluetooth?+
The Magic Remote pairs with the TV; re-pair it if it stops responding.
Can I use Bluetooth headphones and TV speakers together?+
The C4 sends sound to the connected headphones, with the speakers muted. Disconnect the headphones to use the speakers.
Why does Bluetooth drop when I open another input?+
The TV may pause the link when it changes input or sleeps. Reconnect and check for a software update.
Is there a better option than Bluetooth for TV audio?+
An eARC soundbar gives better quality and lip-sync than Bluetooth.
How do I tell whether the TV or the headphones are at fault?+
Pair the same headphones with a phone. If they work there, the problem is the TV's pairing list or software, so remove the old entry and update webOS. If they fail on the phone too, reset the headphones, and then try a second set on the TV.