W23 Earbuds Won't Pair? Complete Fix & Reset Guide

When One Earbud Goes Silent

You open the case, the earbuds pop out, and only the right side plays. The left one blinks a soft white, or stays dark, or shows a full charge on the case's double digital display while producing nothing. The phone's Bluetooth status still reads "Connected." The music disagrees.

This is the most common failure mode in true wireless audio, and in most cases the hardware is fine. What broke is an agreement between three parties: the two earbuds themselves, the earbuds and the phone, and each earbud and its own battery. The fix is rarely a replacement pair. It is walking the system back through that agreement, one handshake at a time, until it holds again.

The steps below were developed specifically around the POMUIC W23, a Bluetooth 5.3 set with 13.4mm dynamic drivers, IPX7 waterproofing, 40 hours total playtime (7 hours per charge plus 33 from the case), 37.3 grams total weight, and a 2 years warranty, and a charging case that carries a double digital display showing each bud's charge level and the case's own. If you are looking for a W23 earbuds pairing fix, this guide walks through every layer of the connection stack. Every step also transfers to other true wireless earbuds built around the same two-radio relay architecture. The W23 is an in-ear form factor set with a built-in microphone, available in black, and ships with a USB Type-C charging cable in the box.

Common symptoms and their first checks: one side completely silent (0 audio output from one bud) points to audio balance, cross-device test, or charging contact. One side much quieter points to the L/R balance slider, ear-tip seal, or speaker mesh blockage. One side that cuts in and out points to wireless environment, movement, or interference channels. One bud that will not power on points to charging contacts, case battery, or seating depth. The same side failing on every device points to headphone-side charging, wiring, or driver failure.

If your issue runs deeper into how to pair wireless earbuds with noise-cancelling phones, our wireless earbuds bluetooth noise-cancel pairing primer covers the platform-side half of the same handshake.

Two Radios, One Stream: How the Relay Architecture Works

A true wireless earbud is a small computer: a Bluetooth radio, a microcontroller, a lithium polymer battery, and a 13.4mm speaker driver, all packed into a housing that weighs 37.3g total for the pair (approximately 18.65g per bud). Classic Bluetooth was never built for this. The core specification, part of the IEEE 802.15 family, assumed a simple topology: one source such as a phone talking to one sink such as a speaker or headset. Two earbuds break that assumption, and the industry has spent a decade patching around it.

Most true wireless sets, including this set, use a relay architecture. The master bud holds phone link to the phone and receives the full stereo audio stream. It then re-transmits a copy to the other earbud over a second, private link between the two units. If that private link drops while the phone link survives, the phone keeps playing into the master earbud and the other side goes silent. The phone's status screen shows nothing wrong. Both devices still read as connected.

Which side goes silent is itself a diagnostic clue. In a relay architecture the master keeps playing when the private link dies, so a dead left unit often points to the earbud-to-earbud link, while a dead unit on the right often points to power or the phone link. Not always, but the asymmetry is a starting point.

The Bluetooth 5.3 radio narrows the failure surface compared to 5.0 or 5.2 hardware. The 5.3 specification operates in the 2.402-2.480 GHz ISM band with 79 channels at 1 MHz spacing, or 40 channels at 2 MHz spacing for LE. The 5.3 revision added connection subrating, which lets a device shift between active and idle states faster, and improved channel classification, which lets a peripheral report noisy channels so the connection can steer around them. The practical effect is fewer retransmissions and less energy spent on recovery. A set advertising up to 75 percent faster data transfer gets much of that gain from retransmission savings, not from raw throughput.

Why the Phone Remembers What No Longer Exists

Every successful pairing writes two entries. The phone stores the earbuds' address, identity credential, and supported audio profiles. The earbuds store the same information about the phone. When you later open the case, neither side renegotiates from scratch; both assume the old agreement still holds.

The negotiation covers several separate profiles. A2DP carries music at up to 320 kbps (SBC codec) or up to 990 kbps (LDAC codec, though the W23 does not support LDAC). HFP carries calls at 8 or 16 kHz sampling, with mSBC codec for HD voice. AVRCP carries the play, pause, and track-skip commands. Each profile renegotiates independently, which is why a set can play music while calls route to the phone speaker, or why the touch controls stop responding while audio continues. A stale entry can corrupt one profile and leave the others intact.

Problems begin when the two memories drift. A case that runs out of battery in the middle of a firmware update, a pairing interrupted at the wrong moment, a phone that has accumulated a dozen old headphone entries. The handshake fails quietly: the phone reports a connection for half a second, then nothing, or audio starts and stops in bursts.

This is why a one-sided reset rarely fixes anything. Clearing the earbuds' memory while the phone keeps its stale profile means the phone re-pairs and immediately reapplies the bad assumptions. The reset that works clears both sides, one after another, before anyone reconnects.

The Charging Contact That Wasn't: Power Problems in Disguise

A single silent earbud is often not a pairing problem at all. It is a power problem wearing a pairing costume.

Earbuds charge through spring-loaded pins in the case that press against metal contact pads on the earbud body. Sweat, skin oil, and earwax leave a thin film on those pads over weeks of daily use. The film adds resistance, the charging current drops, and the earbud slowly drains while sitting in a closed case. A drained earbud cannot answer pairing requests, so it presents exactly like a connection failure: one side silent, the other side fine.

Sleep behavior adds a second failure path. Many cases, including this set, detect the lid with a magnet and a Hall-effect sensor. Closing the lid tells the earbud to power down into a deep sleep. If the sensor sticks or the magnet shifts after a drop, the earbud stays awake inside the case, drains its battery, and greets you silent the next morning.

The checks take a minute. Wipe the contact pads on both the earbud and the case with a dry cloth. A cloth barely dampened with isopropyl alcohol removes the stubborn film. Reseat the earbud and confirm the case's double digital display registers a charge level for that bud. An IPX7 rating means the internals survive immersion up to 1 meter for 30 minutes (IEC 60529 standard), but it does nothing for the exposed contact surfaces where the current has to cross. The charging case itself is not IPX7 rated. Our IPX5 water-jet explainer covers what IP ratings really protect against. The charging case uses a USB Type-C port, and a full charge takes about 1 hour. The set comes with a 2 years warranty through the POMUIC store.

Also check your phone's audio balance before you assume hardware failure. On iPhone and iPad, go to Settings > Accessibility > Audio & Visual > Stereo Audio Balance. Find the slider and confirm it is centered. An off-center slider sends most or all audio to one channel and makes a perfectly healthy earbud pair look broken.

A Reset Sequence That Clears Both Sides

The pairing guide below is generic across most true wireless sets. It was verified on the set, where the touch zones sit on the outer face of each stem and the case carries a double digital display. If a step mentions touch zones, substitute whatever control surface your set uses.

Step 1: Forget on phone. Open Bluetooth settings, find the earbuds entry, and select "Forget This Device" or "Unpair."

Open Bluetooth settings on your phone or laptop, find the W23 entry, and select "Forget This Device" or "Unpair." This deletes the phone's side of the agreement, forcing a clean renegotiation the next time you connect.

Step 2: Clear the earbuds' memory.

Place both buds back in the case with the lid open. Press and hold the case's button for 10-20 seconds (15 seconds is the typical midpoint for most TWS sets). Watch the double digital display: you are looking for a double red flash, which says the pairing memory has been wiped. The set's touch zones on the stem double as the reset interface, so sets with a recessed button follow the same lid-open, hold, and watch-the-lights pattern.

Step 3: Re-pair from scratch.

Take both earbuds out of the case at the same time. Open your phone's Bluetooth list. The set should appear as a new device. Select it and complete the pairing. Both memories now start from the same clean slate, which is the part a one-sided reset never managed.

Step 4: Verify with a stereo test.

Play a track with clearly separated left and right channels. A podcast with a wide mix, or a song with distinct stereo panning, works well. Confirm both buds produce sound. If audio comes back on only one side after a clean re-pair, the link dropped on a charge or contact issue, not on the pairing, and the charging chapter above is where to look next.

Bluetooth 5.3: What It Changes for Connection Stability

The W23's Bluetooth 5.3 radio is not just a version number. Three concrete changes matter for the failure modes above:

Connection subrating. The device can shift between active and idle states faster than 5.2 hardware. When you pause music or stop talking, the link drops into a low-energy idle mode without severing the connection. When you resume, the reconnection is near-instant. Fewer hard disconnects mean fewer stale entries accumulate in the phone's Bluetooth memory.

Improved channel classification. The peripheral reports which 2.4 GHz channels are noisy. The connection steers around them. In a crowded environment (an office with many wireless keyboards, a coffee shop with a dozen Bluetooth speakers), the 5.3 link holds where a 5.0 or 5.2 link would drop. The 75 percent faster data transfer claim in the listing is not raw bandwidth; it is retransmission savings from fewer dropped packets. Typical Class 2 Bluetooth range is 10 meters (33 feet) line of sight.

Faster pairing handshake. The 5.3 pairing protocol completes in fewer round trips. This matters at Step 2 of the reset sequence above: after you wipe the memory and pull both buds out, the set enters pairing mode faster and the phone finds it more reliably.

If you are comparing this set to other Bluetooth 5.3 sets in the same price bracket, the KTGEE T08 (13.2mm driver, 40 hours total, 3.9g per bud, $25.99, 0.05s latency) and the TOZO A1 (3.7 grams per bud, 32 hours total, IPX5, $13.98, 32 EQ presets via app) are the two most common alternatives. The Fhumsh A10 (B0HDHBQ98Q) offers 50 hours total at $23.99 with 13mm drivers and dual-device pairing. The set's edge is the double digital display on the case, which tells you at a glance which bud is running low before it goes silent. The TOZO A1 adds a companion app with 32 EQ presets, which this set does not offer.

When to Stop and Replace

If the cross-device test in the first section shows the same side failing on a 2nd device or more phones or computers, and the charging contact is clean, and the reset sequence has been performed, the problem is inside the earbud. The 13.4mm driver or its voice coil has failed, or the Bluetooth radio on that side is dead. At that point, no amount of software reset will help.

The 2 years warranty (POMUIC store policy) covers this. Check the POMUIC store page for the warranty claim process. If the set is out of warranty, the $38.99 price point means a replacement pair costs less than a single trip to an electronics repair shop, and you avoid the risk of a partial repair that fixes one side and leaves the other marginal.

Before you buy, confirm the replacement will not repeat the same failure. The most common cause of "one side died" in any true wireless set is the charging contact film, not the driver. Clean the contact pads on the new pair after every few weeks and the failure rate drops sharply. The IPX7 nano-coating on the internals does not protect the exposed metal contacts where current crosses, which is the one surface that needs manual maintenance.