crwdns2862678:0crwdne2862678:0
crwdns2895503:0crwdne2895503:0
Headphones will not connect to device
The Bluetooth headphones will not connect audio to the device.
Not in pairing mode
Ensure that the device’s Bluetooth is ready to pair with the headphones. Go to settings-> Bluetooth-> connect-> Sennheiser HD 4.50. If the headphones will not go into pairing mode, see below on troubleshooting pairing mode.
Not a NFC-compatible device
A near-field communication (NFC) compatible device allows short-range connection between devices such as Androids or other smartphones. If trying to pair to a non NFC-compatible device, try holding the power button in the On position for at least 4 seconds and it should then enter pairing mode which will allow it to connect to the device.
Headphones will not turn on
The Bluetooth headphones are not responding when pressing buttons and are not showing any signs of being powered on.
Not charged
Make sure the headphones have been charged with the provided USB cable for a complete charging cycle of 2 hours. Try not to interrupt the charging cycle for the first time charging the headphones.
Faulty micro-USB cable
Ensure the headphones are correctly connected to the USB. The micro-USB plug of the charging cable should be connected to the micro-USB input of the headphones. If the LED lights are not on signifying that they are charging, then the USB cable is faulty. Consider purchasing a new USB charging cable.
Headphones have no audio signal
The Bluetooth headphones do not seem to be presenting sound that you can hear.
Headphones not paired to device
Ensure the headphones are paired. You may need to disconnect the devices and repair them.
Volume is too low
Increase the volume by pushing the volume + button.
Headphones do not respond when buttons are pressed
The headphones are not responding to pushing any of the buttons.
Headphones malfunctioning
Try restarting the headphones by turning them off and then back on.
Faulty battery
The battery may need to be replaced. The battery is located in the left earphone. First, remove the ear pad from the left earphone. Then, use a phillips head screwdriver to remove the screws from the plastic cover. Carefully, remove the cover to reveal the battery. Unplug the battery connection and replace with the new battery. Replace the plastic cover and the ear pad.
Check battery wires
Check the wires leading to the battery. If one is shorted out, use the steps listed above to replace the battery.
Headphones will not go into pairing mode
The headphones do not indicate they are ready to be paired.
Prior Bluetooth connection
Make sure no other devices are connected before trying to pair.
Headphones malfunctioning
Switch the headphones off and hold the power button for 4-5 seconds.
crwdns2915084:0crwdne2915084:0
University of Alabama, Team S2-G1, Bedsole Spring 2021 crwdns2935289:0University of Alabama, Team S2-G1, Bedsole Spring 2021crwdne2935289:0
UA-BEDSOLE-S21S2G1
crwdns2931471:04crwdne2931471:0
crwdns2935297:017crwdne2935297:0
crwdns2944067:029crwdne2944067:0
If headphones are not visible by Bluetooth , connect them to PC by USB, if no progress discharge battery and recharge by PC (low current),
For models 4.50 BTNC also try to connect by NFC.
Zenon Pinezka - crwdns2934203:0crwdne2934203:0
my headphones will not play sound even when the wire is plugged into the wireless headphones.
Cian Quinn - crwdns2934203:0crwdne2934203:0
El audio solo se escucha si mantengo pulsado el boton de apagado o encendido o si los tengo conectados con el cable aux.
Daniil Gindea - crwdns2934203:0crwdne2934203:0
RS 175 will not work on hd
Jeff Wilson - crwdns2934203:0crwdne2934203:0
Hola buenos dias, no logro vincular por bluetooh los autriculares en ningun dispositivo. tengo un Huawei p40 p
Marcelo Groos - crwdns2934203:0crwdne2934203:0
My Sennheiser HD BT450 headphones worked for just 3 months plus 2 weeks. When the charge was low. they kept disconnecting and after a full charge 100% they will not connect with my phone with bluetooth. Also, when I press the on/off button it says "power on" every time and will not turn off. It always says "power on" and sometimes also says it is pairing. My phone shows it on the bluetooth list, but it will not connect.
Marti Lewis - crwdns2934203:0crwdne2934203:0
Did you find solution ? i have the same problem
jair -
Please help me my headsets hd450bt blue light is nit blinking and not connect but when i connect with charger red light is showinv and its charging
anjana sawanny - crwdns2934203:0crwdne2934203:0
I recently bought HD BT 4.50, and when I charged it for the first time I kept it charging for more than 2 hours and it was still 30% I tried other usb's but it still doesn't work. Fyi I used 3 times only until its battery died, after that it won't charge I mean it's still new what could go wrong?
Omar - crwdns2934203:0crwdne2934203:0
My HD 450 set initially paired with my Toshiba LED TV and with good sound and then for some unknown reason the sound became patchy and haven’t been able to work out why..I even contacted Sennheiser and they advised to spend more money on a Sennheiser Bluetooth BT-100 transmitter..and that wouldn’t work…exceedingly frustrating..please assist.
Rod Gray - crwdns2934203:0crwdne2934203:0
My hd450bt were working fine for a few months then suddenly stopped working. When turned on it makes a loud screeching noise and will not connect to Bluetooth then turns itself off. After un pairing to my phone and trying to re-pair them it dosent come up as an option at all. I tried reseting but it does nothing. Only work when connected directly to my phone with the audio cable.
Kelly Gallagher - crwdns2934203:0crwdne2934203:0
Did you end up finding a way to fix that problem? I’ve been having the same exact one even though I got them like 2 weeks ago
Comedicgnome -
They just fixed themselves after a few weeks. Idk what I did to fix them, I did reset the headphones, that might have helped.
Kelly Gallagher -
Same thing happened to me actually, I just left them in my bag the entire day and they just magically started working when I took them out to use it again.
Comedicgnome -
did you find a solution? i have extactly teh same problem!
jair -
Cuando escucho la TV y tengo conectado el smartphone para recibir llamadas al manejar el smartphone se corta la comunicación con la TV y pierdo el sonido por unos instantes.
Juan Lopez de Castro - crwdns2934203:0crwdne2934203:0
I have the Sennheiser HD 450BT wireless headphones. I purchased the unit November 24fh, 2023. It has worked fine up until yesterday. Now, I get no sound in the right side.
Jeff Lawhon - crwdns2934203:0crwdne2934203:0
My 450SE headphones randomly turn off. Most of the time right after starting to listen to something, and when not listening to anything there is a lot of static.
Kevin - crwdns2934203:0crwdne2934203:0
Cuando se conectan via Bluetooth solo suena el auricular derecho y con cable suenan los dos, mi dispositivo no está con sonido mono
Luis Antonio Muñoz - crwdns2934203:0crwdne2934203:0
When my headphones turn on, a screeching like sound followed by crackling responds, the screeching sound is like a long beep, no buttons respond nor does it connect to any device, this long beep occurs until the headphones turn off automatically after about 30 seconds.
Eli Lobin - crwdns2934203:0crwdne2934203:0
Una verga.. SENHEISER es la última vez que compre un producto de Uds!
Mauricio Cisneros - crwdns2934203:0crwdne2934203:0
Tengo unos audífonos SENNHEISER MOMENTUM 4
Cuando los estoy usando y giro la cabeza hacia la derecha, se detiene la reproducción.
Cómo puedo solucionarlo?
Eduardo Romero - crwdns2934203:0crwdne2934203:0
I replaced the battery but the earphones are still not charging. What to do next?
Lesly Valeria Navarro Berrones - crwdns2934203:0crwdne2934203:0
Hola, mis audífonos no se apagan, dejo presionado el botón de encendido dos segundos y dice "power on", realice el reset como indica el instructivo pero se sigue repitiendo el problema, además que al momento de vincularse al teléfono "error de conexión" y en la computadora "esto no es posible".
Estaban perfectos, me paso de un día a otro.
Sol - crwdns2934203:0crwdne2934203:0
hola, has encontrado una solucion para esto?
jair -
My phone 'sees' the phone, but it then reports that pairing is rejected by the HD 450 SE. Lost ?
Gavin McDonnell - crwdns2934203:0crwdne2934203:0
Hola, tengo unos auriculares HD 450BT desde que los compré no logran encender correctamente, y se apaga automáticamente, pasaron por garantía 3 veces en el primer mes, cambiaron la batería, cambiaron tarjetas y cables, siempre funciaron bien durante 2 días y de nuevo el problema. Llevo un año con ellos y la verdad son un excelente pisa papel de escritorio, por lo demás es pura basura, no compren esta marca
Rhernandez - crwdns2934203:0crwdne2934203:0
Buen día.
Con el Bluetooth solo se escucha de un solo lado (del lado de los botones) y con el cable si es posible escuchar de ambos lados
Alguna solución a mi problema en el audio con el Bluetooth???
Gabino - crwdns2934203:0crwdne2934203:0
Mi hd450bt funcionó bien durante unos meses y, de repente, dejó de funcionar. Cuando se enciende, hace un ruido chirriante fuerte y no se conecta a Bluetooth; luego se apaga. Después de desvincularlos de mi teléfono e intentar volver a vincularlos, no aparece como una opción en absoluto. Intenté reiniciar pero no hace nada. Solo funciona cuando se conecta directamente a mi teléfono con el cable de audio.
Leonardo Martín Vallejos - crwdns2934203:0crwdne2934203:0