Xiaomi Sound Quality Worse After HyperOS Update in Brighton

Xiaomi Sound Quality Worse After HyperOS Update? – UK Fix (2026)

UK Xiaomi provides practical, step-by-step solutions for Xiaomi device users across the UK. This guide helps you fix poor sound quality after a HyperOS update on your Xiaomi, Redmi, or POCO device—whether you're in Brighton or anywhere else in the UK. These fixes apply to UK retail and unlocked Xiaomi phones, regardless of your carrier—whether you're on EE, O2, Vodafone, or Three.

Sound Worse After Update? Quick Fix

  • ✔ Check known HyperOS audio issues – Xiaomi has confirmed Dolby Audio quality problems on some builds
  • ✔ Disable Dolby Atmos temporarily – Settings → Sound & vibration → Dolby Atmos → Toggle off
  • ✔ Check for system effects forcing 48kHz – Dolby Atmos or Xiaomi Sound can force low sample rates
  • ✔ Update HyperOS – Xiaomi is releasing fixes for audio issues
  • ✔ Re-pair Bluetooth devices – Some users report improved quality after re-pairing
  • ✔ Clean speaker grille – Dust can muffle sound

Quick Reference – Find Your Fix

ProblemQuick Fix
Poor Dolby Audio qualityCheck if your device is on a known affected build
Bluetooth audio sounds badDisable Dolby Atmos; check if Xiaomi Sound is interfering
No sound from speakersSome Redmi Pad 2 and Redmi Note 13 builds affected; use headphones as temporary workaround
Sound muffled or distortedClean speaker grille; restart phone
No improvementWait for OTA update or contact Xiaomi UK Support

Quick Answer

If your Xiaomi sound quality became worse after a HyperOS update, you're not alone—Xiaomi has confirmed audio issues affecting some devices, including poor Dolby Audio quality on certain builds and intermittent Bluetooth audio problems. In many cases, the issue is software-related, not hardware. Start by temporarily disabling Dolby Atmos, checking for system audio effects that may be forcing low-quality audio, and checking if your device is on a known affected build. These steps work the same whether you're in Brighton or anywhere else in the UK.

Before You Start

To help you find the right fix faster, answer these questions:

  • Did the issue begin immediately after updating? – If yes, it's likely software-related.
  • Does it affect speakers only? – Check the speaker grille for dust; run the hardware test.
  • Does it affect Bluetooth only? – Re-pair your device and check Bluetooth codec settings.
  • Does it affect wired headphones? – Check if Dolby Atmos or sound effects are interfering.
  • Does it affect calls only? – Clean the earpiece grille; check call volume settings.
  • Does it affect music only? – Check equalizer and sound effect settings.

Which Devices and HyperOS Versions Are Affected?

Xiaomi has confirmed audio-related issues on several devices after HyperOS updates. Known affected devices include:

  • POCO X7 Pro – Poor Dolby Audio quality on build OS3.0.5.0.WOJMIXM
  • POCO F7 – Dolby Audio quality issues; fix being prepared
  • Redmi Note 14 Pro – Intermittent Bluetooth audio playback after screen-off
  • Redmi Pad 2 – No sound from speakers on HyperOS 3.0.1.0.WOVMIXM
  • Redmi Note 13 – No audio output on some builds

Other devices may also experience similar symptoms depending on the HyperOS build.

Why Sound Quality Drops After HyperOS Update

Understanding why this happens helps you fix it correctly:

  • Confirmed Dolby Audio bugs – Xiaomi has confirmed that Dolby Audio quality can become "not ideal" and inconsistent on some HyperOS builds. The issue affects certain devices, with fixes being tested.
  • System audio effects forcing low sample rates – Dolby Atmos, Xiaomi Sound, or built-in equalizers can force audio to 48kHz/16-bit even when higher resolution is expected. This happens because the updated audio processing pipeline changes how Bluetooth codecs such as AAC or LDAC are handled, which can make Bluetooth audio sound worse than before the update.
  • Bluetooth audio quality degradation – Users have reported that Bluetooth audio sounds noticeably worse after switching to HyperOS, with limited equalizer settings compared to previous MIUI versions. This usually occurs because the updated audio processing pipeline changes how Bluetooth codecs are handled.
  • Audio routing bugs – Some users experience audio routing to the wrong output after updates.
  • Speaker grille blockage – Dust can accumulate and muffle sound, which may become more noticeable after an update.

Step 1: Check If You're on a Known Affected Build

If your device is on one of these builds, Xiaomi is already working on a fix:

  • OS3.0.5.0.WOJMIXM – POCO X7 Pro (Dolby Audio issues; distribution discontinued)
  • OS3.0.4.0.WOJMIXM – POCO F7 (Dolby Audio issues; fix being prepared)
  • OS3.0.5.0.WNFMIXM – Redmi Note 13 Pro and POCO M6 Pro (silent call bug)
  • OS3.0.1.0.WOVMIXM – Redmi Pad 2 (no sound from speakers)

If your build is listed, the issue is confirmed software-related. Check for updates regularly, as Xiaomi is rolling out fixes.

Step 2: Disable Dolby Atmos and Xiaomi Sound

System audio effects can force lower audio quality or cause conflicts. Some users have reported that disabling Dolby Atmos improved sound quality on affected builds.

  • Settings → Sound & vibration → Dolby Atmos – Toggle it OFF
  • If the issue persists, go to Settings → Sound & vibration → Sound effects and disable any other enhancements (Xiaomi Sound, equalizer)
  • Test if sound quality improves

Visual Path: Settings → Sound & vibration → Dolby Atmos → Toggle OFF

Step 3: Check Bluetooth Audio Codec and Settings

If the issue is with Bluetooth audio, try these steps:

  • Re-pair your Bluetooth device – Forget the device and pair it again
  • Check Developer Options – Settings → Additional settings → Developer options → Bluetooth Audio Codec – try switching between AAC and LDAC (if supported)
  • Note: Some HyperOS builds force 48kHz/16-bit for all Bluetooth codecs, which can make audio sound worse.
  • Visual Path: Settings → Bluetooth → [Your device] → Forget → Re-pair

Step 4: Clean the Speaker Grille

Dust and lint can muffle or block sound completely, which may become more noticeable after an update.

  • Inspect the speaker openings for visible debris
  • Gently clean with a soft, dry brush or cotton swab
  • Avoid using liquids or sharp objects that could damage the speaker
  • Remove any phone case that might be partially covering the speaker
  • Test the sound quality after cleaning

Step 5: Install the Latest System Package

Xiaomi releases fixes for confirmed issues through system updates:

  1. Settings → About phone → Xiaomi HyperOS
  2. Tap the three dots (top right)
  3. Select Download the latest package
  4. Install any available updates
  5. Restart your phone and test sound quality

Step 6: Run the Speaker Hardware Test

If the sound quality is still poor, run a hardware test to check if the speaker itself is faulty.

  • Open the Phone app and dial *#*#64663#*#* (CIT test) – note that this code may not work on all models
  • Select Speaker from the test menu
  • Test tones will play through each speaker independently
  • If the test sounds clear but media playback doesn't, the issue is software-related

Does This Happen With Every Audio Source?

  • If the issue is only on Bluetooth: Check Bluetooth codec settings and disable Dolby Atmos
  • If the issue is only on speakers: Clean the speaker grille and check for hardware faults
  • If the issue is only in one app: Check the app's own audio settings
  • If every audio source sounds worse: The issue is system-wide; check if you're on a known affected build

What to Do If Sound Quality Is Still Poor

If the sound quality is still poor after completing all steps:

  • Wait for OTA update – Xiaomi is actively working on fixes
  • Test with headphones – to see if the issue is speaker-specific
  • Factory reset – only as a last resort; back up your data first
  • Contact Xiaomi UK Support – for professional inspection and advice

Contact Xiaomi UK Support

If the sound quality is still poor after completing all steps, contact Xiaomi UK Support through the official channels:

  • Xiaomi UK Support website – Official support portal for UK customers
  • Feedback app – Use the built-in Feedback app on your Xiaomi device to report the issue
  • Xiaomi Community – Post in official Xiaomi community forums, including UK-specific threads

Final Verdict

If your Xiaomi sound quality became worse after a HyperOS update, the issue may be a confirmed software bug affecting specific devices and builds. Start by checking if your device is on a known affected build—if so, Xiaomi is already working on a fix. Temporarily disabling Dolby Atmos, re-pairing Bluetooth devices, and cleaning the speaker grille can help in the meantime. Keep your device updated with the latest HyperOS package, as fixes are being rolled out. These steps work the same whether you're in Brighton or anywhere else in the UK.

Frequently Asked Questions

Why did my Xiaomi sound quality get worse after HyperOS update?

Xiaomi has confirmed software-related audio issues on some HyperOS builds, including poor Dolby Audio quality on certain devices. The issue is not hardware-related and fixes are being developed.

Should I factory reset my Xiaomi after a HyperOS update?

Factory reset should only be used as a last resort, as it wipes all your data. Before trying it, disable Dolby Atmos, update to the latest HyperOS build, and try the other steps in this guide. Xiaomi is actively releasing OTA fixes for audio issues, so a factory reset is rarely necessary.

Does HyperOS reduce Bluetooth audio quality?

Some HyperOS builds can reduce Bluetooth audio quality by forcing all Bluetooth codecs to operate at 48kHz/16-bit, even when higher resolution is expected. This is a known software issue and not a hardware problem. Disabling Dolby Atmos or installing the latest HyperOS update often resolves it.

Can Dolby Atmos make Xiaomi speakers sound worse?

Yes. On some HyperOS builds, Dolby Atmos can cause poor audio quality or inconsistency. Disabling it temporarily is one of the most effective ways to test if this is the cause. If sound quality improves, you can leave it off until Xiaomi releases a fix.

Is this a hardware problem or a software bug?

In most cases, it's a software bug. Xiaomi has confirmed audio issues on several builds and is actively working on fixes. If the problem started immediately after a system update, it's almost certainly software-related.

Do these fixes work on UK Xiaomi devices?

Yes. This guide applies to Xiaomi, Redmi, and POCO devices sold in the UK. The steps are identical across UK models.

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