When the speakerphone on your OnePlus 15 stops working during calls, conversations become frustrating very quickly. You may hear the other person only through the earpiece, or sometimes not at all, even after turning on speaker mode. This issue is usually caused by settings conflicts, software glitches, or audio routing problems, and most of them can be fixed without professional repair.
Why the OnePlus 15 Speakerphone Is Not Working
- Speaker output is muted or volume is set too low during calls.
- Bluetooth audio is redirecting sound to another device.
- App or system audio glitches after long uptime.
- Third-party apps interfering with call audio.
- Software bugs affecting call routing.
Restart the Phone
Restarting clears temporary system glitches that affect audio routing. It forces the phone to reload call and speaker services from scratch.
Open Settings, and then scroll down to System.
Tap Restart, and then confirm the action.
Once the phone boots up, make a test call and enable speakerphone.
Check Call Volume While on Speaker
Sometimes the speaker is working, but the volume is set too low to hear. Call volume is controlled separately from media volume.
Make a phone call, and then enable Speaker.
Press the Volume Up key repeatedly, and watch the on-screen call volume indicator.
Adjust it until the sound becomes clear.
Turn Off Bluetooth
If your OnePlus 15 is connected to wireless earbuds or a car system, audio may be routed away from the speaker. Turning off Bluetooth ensures the phone uses its built-in speaker.
Open Settings, and then tap Bluetooth.
Toggle Bluetooth off, and then place a call again.
Turn on speakerphone and check if audio plays through the phone.
Check for App Interference
Some calling or recording apps can interfere with speaker output. This is common after installing new communication or utility apps.
Open Settings, and then tap Apps.
Tap App management, and review recently installed apps.
Uninstall or disable suspicious apps, then test the speakerphone again.
Clear the Phone App Cache
Corrupted cache files can cause call audio problems. Clearing the cache refreshes the Phone app without deleting call logs.
Open Settings, and then tap Apps.
Tap App management, then find and tap Phone.
Tap Storage usage, and then tap Clear cache.
Test Speaker in Safe Mode
Safe Mode helps confirm whether the issue is caused by third-party apps. If speakerphone works in Safe Mode, an installed app is likely the problem.
Press and hold the Power key, and then tap Restart.
Tap Reboot to Safe Mode, and confirm.
Make a call in Safe Mode and test speakerphone behavior.
Speakerphone issues on the OnePlus 15 are usually software-related and can be resolved with careful troubleshooting. Once audio routing is restored, calls should sound loud and clear again.
FAQs
Why can I hear calls normally without speakerphone but not with speaker on?
This usually points to an issue with the main speaker or audio routing. Software glitches or blocked speaker output are common causes.
Does using speakerphone damage the speaker over time?
No. Speakerphone is designed for regular use and does not damage the speaker when used normally.
Should I contact support if speakerphone still does not work?
Yes. If none of the steps work, the speaker hardware may be faulty, and OnePlus support can check the device under warranty.
