r/tradfri

Hi guys,

I'm having a really stubborn issue with an IKEA NYMÅNE Smart LED pendant (38 cm, anthracite, article 905.040.44) that I can't get into factory reset/pairing mode. I've tried pretty much every timing I can think of, but the lamp just turns on normally every time.

The lamp is a 2023 unit (batch 2333), rated at 220–240V, 50–60Hz, 22W. It uses Zigbee 3.0/Tradfri, and the Zigbee electronics and AC-DC driver are inside the metal lamp itself. The ceiling cup is basically just the mounting bracket and the L/N terminal block.

My setup is Zigbee2MQTT with a Sonoff Zigbee 3.0 USB Dongle Plus (EFR32MG24, EmberZNet 8.0.2), on channel 15 at 18 dBm. The Zigbee network itself is working fine. I already have two IKEA PILSKOTT pendant lamps, an IKEA STYRBAR remote and a Sonoff ZBM5 switch on the network.

The interesting part is that the NYMÅNE is wired in parallel with the two PILSKOTT lamps in router mode on the exact same wall switch circuit.

When I turn the switch on, the NYMÅNE immediately comes on at 100% brightness, with both the warm and cool LEDs on. It never flashes, pulses or dims, and I don't see it attempting to join or announce itself when permit_join is enabled in Zigbee2MQTT. It basically behaves as if it's either still paired to some old network or simply isn't recognising the reset sequence.

I've tried the usual 6-toggle reset several times, with different timings: roughly 0.5s on/0.5s off, 1s on/1s off, and even around 1.5s on/3s off to give the internal capacitors plenty of time to discharge. Nothing works. The lamp just comes back on normally. Interestingly, the two PILSKOTT lamps on the same circuit also didn't reset during these tests.

I also tried Touchlink from Zigbee2MQTT, but the scan/reset attempts timed out. I tried using the STYRBAR remote directly next to the lamp (2–5 cm away) and held the pairing button for more than 10 seconds, but the NYMÅNE didn't react at all. The STYRBAR is already joined to Zigbee2MQTT, so I assume its standalone Touchlink functionality is disabled anyway.

I've also opened the lamp up and checked the wiring. The 230V connection is solid at the ceiling terminal and at the connector on the LED plate. I couldn't find any obvious physical reset button, pinhole or similar.

So I'm wondering if anyone here has dealt specifically with this NYMÅNE model.

A few things I'm particularly curious about:

• Does the 6-toggle reset on this particular 22W NYMÅNE require a very specific timing? If you've successfully reset one, what timing did you use?
• Could having the three drivers (2x PILSKOTT + NYMÅNE) on the same switch be interfering with the reset because the voltage isn't dropping quickly enough? Would it be worth disconnecting the other two and testing the NYMÅNE completely on its own?
• Has anyone found a hidden reset button, pinhole, test pad or jumper inside the NYMÅNE, perhaps underneath/behind the 10078006 LED plate?
• Would something like a Philips Hue Dimmer or another dedicated Touchlink device actually be able to reset it through the metal shade?
• Is there another IKEA-specific reset procedure for this model that isn't the usual 6 power cycles?

At this point I'm mainly trying to figure out whether I'm missing something obvious or whether this particular unit might actually have a hardware/firmware issue.

Any advice from someone who's successfully reset one of these would be really appreciated. Thanks!

Edit: This is the European version bought in Portugal, in case there are any regional differences in the hardware, firmware or reset procedure.

TL;DR: NYMÅNE 38 cm (905.040.44) won't enter reset/pairing mode despite trying multiple 6-toggle timings, Touchlink and a STYRBAR. It's the European/Portuguese version.

Went to my local in the UK and they only have models from March, so not new. Going to wait out until the newer one is in stock. Wife also picked up a plug and Bilresa combo, also old, but from May.

Original post is below.

Additional context I did not share earlier:

• The hub is Dirigera, hooked via Ethernet to a Deco X50 mesh (3 routers)
• IPv6 is enabled, with SLAAC + DHCPv6
• Earlier did experiments disabling Fast Roaming and SIP ALG. No IGMP option is shared in the app

Not sure why, but I followed one of the comments below:

1. Disconnected the hub from power for a while, like 30 minutes
2. Reconnected the hub
3. Disabled Bluetooth on my phone
4. Reset the Bilresa light switch
5. Start the pairing process

And it just worked.

No freaking clue why. My guess is that disconnecting the hub for a long time forced a IPv6 configuration refresh.

Thanks to that, I can also access the hub via Thread Tools.

An additional thing is that I run AdGuard on my phone, so I explicitly whitelisted Google Play Services and Ikea Home Smart; disabling it earlier did nothing, having them whitelisted worked. Not sure if this was helpful, but it is worth mentioning.

That's all, now the original post:

---

As per title.

I am no Matter nor Thread expert, but working in IT I am used to experiment.

We've purchased recently a Matter light switch and struggled to connect it to the hub. Old Zigbee devices work with no issues.

With some digging, I found the Thread Tools app, where I can easily replicate the error: the Dirigera Thread Border Router rejects the connection with no explanation.

I've tried to:

1. Add the light switch via the official Ikea Home Smart app
2. Add the Thread network via the integration option in Google Home
3. Add the light switch via Google Home
4. Connect via the Thread Tools app

All of them fail. Case 2 allow the addition but all the devices result offline; in all other cases, the connection is directly rejected.

The only operation that I can perform is to reset the network. Other than that, it show no other signs of life.

I would love further input; the customer support just said they acknowledge the issue and will solve it "soon".

With the old ZigBee devices, they were automatically added to Apple Home after you connect them to the IKEA Home Smart app. Is there a way to do this automatically for the new Matter devices instead of having to add them two times? It's something I miss a lot..

Also I noticed that when pairing a device, it says it will save the Matter code to the Apple Keychain, but I don't have any QR code/Matter code saved?