I’ve been experiencing Bluetooth connectivity problems with my Sennheiser HD 450BT headphones for the past 3–4 months. The headphones no longer connect to my phone, and the dual-device pairing feature has never worked. The Bluetooth reset function also doesn’t respond — pressing the buttons has no effect. In addition, when I try to turn the headphones off, they won’t power down; the voice prompt keeps saying “Power on” and the blue light stays on, but the device still fails to connect to anything.
When using a wired connection, the headphones work fine, so the issue seems limited to the Bluetooth module. I purchased the product from Amazon, but I haven’t yet contacted customer service. I’m also unsure of the warranty status, and I currently don’t have the invoice or order number. The problem persists consistently across multiple devices, and I’ve been unable to perform a factory reset.
I request that Sennheiser provide a quick solution, whether through technical repair, firmware support, or, if necessary, a product replacement. It’s frustrating that such a reputable brand’s wireless headphones would develop persistent connectivity issues after regular use.
I recently purchased the Sennheiser 450 BT headphones and have been unable to connect them to my phone via Bluetooth. The dual-device connection, a key feature I was excited about, doesn’t work at all. Trying to reset the Bluetooth settings is frustrating—it's not responsive and won’t reset as descr...
I have been using my Sennheiser HD 450BT headphones for nearly a year, but recently, they stopped connecting via Bluetooth. When I press and hold the ...
For about two months, I’ve been experiencing Bluetooth connection problems with my Sennheiser HD 450BT headphones. At first, the issue was occasional, but now the headphones won’t connect to any device at all. I’ve tried pairing with multiple phones and computers, but it makes no difference. I also ...
I recently bought the Sennheiser HD 450 BT headphones and had a great time using them. However, I'm currently facing an issue where the Bluetooth connection won't establish. Whenever I press and hold the power button, the lights go through a sequence of flashing colours before eventually turning off...
My Sennheiser headphones are no longer functioning properly. Initially, the right earbud was blinking green and red, but now neither earbud lights up. The charging case is fully charged, so that’s not the issue. I tried removing the device from my Bluetooth settings and reconnecting, but it won’t p...
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