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NL21 earbuds won't pair with each other?

Updated

Symptom

NL21 earbuds show up as two separate devices in your phone's Bluetooth settings. Only one bud connects at a time, not both.


Quick Fix

Reset both buds in the case (charging cable plugged in, hold touch panel for 5s), remove old NL21 pairings from your phone, and pair again.

The classic "Van Gogh mode" – listening to music with only one ear like a painter after a bar fight. Your Bluetooth settings are flashing two separate NL21 devices, and each one is performing its own solo show. Don't worry. It's annoying, but fixable.

Why can't the buds find each other?

With the NL21 earbuds, the right bud is the primary device and the left one is the sidekick. Normally they pair with each other first, and then the primary bud connects the duo to your phone as a single device.

Sometimes this internal pairing goes haywire. There are a few reasons:

  • One bud has been reset or replaced with a new one – for example, a replacement bud ordered for a lost one doesn't recognise its old partner
  • The buds have ended up in different modes – one is looking for a phone, the other is looking for the other bud, nobody finds anyone
  • Old pairings are stuck in your phone's memory – the phone remembers an old connection and messes up the new one
  • The buds weren't in the case at the same time when pairing kicked off

The end result is that red-blue disco light show and the "pairing... connected... disconnected" loop. We've all been there.

How to fix it

Do these steps in order. No shortcuts.

1. Remove old pairings from your phone

  • Go to your phone's Bluetooth settings
  • Find all NL21 devices (there might be one or two)
  • Remove or "forget" every single one of them

2. Reset both buds

  • Place both buds in the charging case
  • Plug the charging cable into the case (this is important – the cable must be connected)
  • Hold the touch panel on both buds for 5 seconds
  • A blue light flashes once on each bud – reset done
  • Unplug the charging cable

3. Let the buds pair with each other

  • Keep both buds in the case, lid open
  • Take both buds out of the case at the same time
  • Wait a moment – the buds will find each other first
  • When the right bud's light starts flashing blue-red at a calm pace, the buds are ready to pair with your phone

4. Pair with your phone

  • Open your phone's Bluetooth settings
  • Look for "NL21" – you should now see only one device
  • Connect to it
  • Both buds play audio

If you still see two separate NL21 devices, repeat the reset. Sometimes the first attempt doesn't stick.

A few practical tips

  • Keep your phone close during pairing. Bluetooth 5.0 can reach 10 metres just fine, but a short distance helps during the pairing stage.
  • Turn off other Bluetooth devices nearby for a moment. Less chatter in the airwaves, better results.
  • If your connection drops during WhatsApp calls, check that your phone isn't trying to switch between two Bluetooth profiles. Remove unnecessary pairings from other devices too.

If nothing works

If the reset doesn't do the trick even on the third try and the buds keep up their disco light show, you might have a faulty bud. Drop us a message at info@valco.fi – include your order number and which bud is acting up. Jasse and the crew in Kajaani will sort it out.

We fix things, we don't bin them. Even if Bluetooth technology sometimes deserves to be launched out the window.

Still stuck?

We get it — technology should just work. If these steps didn't help, our support team is ready. Include the following when reaching out:

  • Your product model and firmware version
  • A description of the issue
  • Steps you've already tried from this article

Small disclosure: we're a tiny company and none of us has time to hand-write all these articles, so they were generated by AI. Some of it is bound to be total crap. If this article is wrong, misleading, or just bad, flag it for us — we go through the flagged ones and either fix them or kill them.

Valco NL21 true wireless earbuds
No longer made

NL21

This was a short-run product from Valco's early days. It's no longer manufactured and isn't available second-hand either.

Valco NL25 true wireless ANC earbuds

NL25

In stock

Jussi Timosen muotoilu ja Jasse Kestin virittämä äänimaailma tekevät NL25:stä kuulokkeet, jotka saavat korvasi hyräilemään onnesta. Ne istuvat lähes jokaiseen korvaan kuin etusormi sieraimeen ja tuovat studiotason äänen keskelle arkea. Uusin teknologia takaa, ettei NL25 vanhene heti käsiin – ja päivitysten myötä ne saattavat jopa parantua, toisin kuin me.