Your OnePlus 13 screen lights up for an incoming call and the dialer shows the number, yet the phone stays completely silent, so you only notice the call once it has already rolled to voicemail. On this model the cause is almost always a sound setting, a hardware switch, or a gesture quietly muting the ringer, not a failed speaker. Because the OnePlus 13 (launched globally in January 2025) ships with OxygenOS 15.0 based on Android 15 and keeps the physical Alert Slider on its left edge, there are several easy places where the ring can be switched off without you realizing it. Work through the fixes below in order, starting with the quickest and safest checks before anything that touches your data.
Check the Alert Slider before anything else
The OnePlus 13 has a physical Alert Slider on the left side of the phone, and it overrides a lot of what you set in software. Toggling it switches the system between silent, vibrate, and ring, so a single accidental nudge in your pocket or bag can mute every call.
According to the official manual, in Silent "Calls and notifications will be silenced with no vibration, except for alarms," and in Vibrate "The Phone will not ring but will vibrate for calls and notifications, except for alarms." Push the slider all the way to Ring Mode, where "Calls, alarms and notifications will function normally." If the slider was the culprit, the very next call should ring out loud.
Clear the sound settings that keep your OnePlus 13 silent
If the slider is already on Ring but calls are still soundless, the next stop is the main sound menu. Both of the checks below live under Settings > Sounds & vibration.
Turn off Silent mode
Software Silent mode behaves much like the slider. The manufacturer notes that with it enabled, "when you receive a message, your phone screen will light up rather than ringing," so calls and alerts come in visually but without sound. Open Settings > Sounds & vibration and make sure Silent mode is switched off.
Raise the ringtone volume
A ringtone slider that has crept down to zero will silence calls even when nothing else is wrong. The official guidance is to go to Settings > Sounds & vibration to adjust the volume of media, ringtones, notifications, and alarms. Drag the ringtone volume up so there is plenty of headroom, then test with a call.
Switch off Do Not Disturb and check its schedule
Do Not Disturb is one of the most common reasons a OnePlus 13 stays quiet, partly because it can turn itself on automatically. Go to Settings > Sounds & vibration > Do Not Disturb and switch it off. The manufacturer warns plainly that "If the phone is in Do Not Disturb mode, the ringtone and vibration will be turned off."
While you are in that menu, open Schedules (for example a Sleep schedule) so the feature is not enabling itself at set times each night. If you do want certain people to break through, tap Contacts and add allowed callers; the official note is that "Ringtones and alerts for calls and messages from these types of contacts will sound normally when Do Not Disturb is on."
Confirm a ringtone is actually assigned
If the volume is up and no mode is active, check that a ringtone is actually selected. Go to Settings > Sounds & vibration and set up your preferred Ringtone, Message tone, and Notification tone. When the ringtone has been left on none or a silent file, incoming calls arrive without any audible alert even though everything else looks normal.
Turn off the Flip to mute gesture
OxygenOS includes a motion gesture that intentionally silences calls, and it is easy to forget it is on. Go to Settings > Additional settings > Gestures & motions and look for "Flip to mute incoming calls," which mutes a call when you flip the phone over. If this is enabled and your OnePlus 13 spends the day lying face-down on a desk, every call gets hushed automatically. Turn the gesture off, or simply keep the phone face-up.
Send call audio back to the phone speaker
If you pair earbuds, a car system, or a watch, the ringtone can be routing silently to that device instead of the phone's speaker. A Bluetooth device can be set for call audio, so the ring plays where you cannot hear it. Go to Settings > Bluetooth, tap the icon beside the paired device, and choose Disconnect or Unpair. With the accessory disconnected, the ringtone should play out loud from the phone again.
Make sure you aren't muting the ring yourself
Sometimes the phone does ring, briefly, and then goes quiet because a side button is being pressed as you pick it up. The official documentation states "Press the volume button to silence the ringtone when you get an incoming call," and pressing the Power button once during an incoming call will "turn off ring or vibration." If your OnePlus 13 starts to ring and then cuts out, check that you are not catching the volume or power keys when you grab it.
Check whether the caller is blocked
If only one specific person never gets through audibly, the problem may be limited to that contact rather than the whole phone. Open that contact; OnePlus's Contacts lets you "set a ringtone for a contact, block a number, or perform other operations." Confirm the number has not been added to your block list, which would stop their calls from ringing while everyone else comes through normally.
Restart your OnePlus 13
A restart clears the temporary software glitches that can stop the ringer from firing. Try the normal restart first, and only use the force method if the phone is unresponsive.
Restart from the Power Menu
With the power button set to Power Menu (Settings > Additional settings > Power Button), press and hold the power button until the Power Menu pops up, then tap Restart. Let the phone fully reboot before testing a call.
Force restart a frozen phone
If the phone is frozen and will not respond, use the official force-restart method: "If your phone doesn't work and won't turn off normally, you can force start it by pressing and holding the Power and Volume Up buttons for more than 10 seconds." Note that this is Volume Up plus Power, not Volume Down.
Update OxygenOS to the latest build
Software updates can fix known issues and improve system performance and stability, including audio and call-handling bugs. Go to Settings > About device, then tap the version number at the top to check for updates and download one if it is available. It is recommended that you use Wi-Fi to download the update, then restart and test the ringer.
Erase all data as a last resort
If nothing above restores the ring, a factory reset rules out a stubborn software fault before you assume the hardware is broken. Back up your data first, then go to Settings > Additional settings > Back up and reset > Reset phone. The manufacturer warns that "If you tap 'Erase all data', your phone will be restored to factory settings and all your data will be erased. Please act with caution," so only take this step once your photos, messages, and accounts are safely backed up.
When to contact OnePlus or book a repair
If your OnePlus 13 still will not ring after a clean reset, the earpiece, loudspeaker, or call hardware may be faulty and need service. At that point, use OnePlus's official support and repair channels to contact the team or submit a repair request. Describe exactly what you have already tried, including the Alert Slider position, Do Not Disturb, and the reset, so the support process can move straight to a hardware check.
Frequently Asked Questions
Why does my OnePlus 13 vibrate but never ring?
That usually means the Alert Slider is set to Vibrate, where, per the manual, "The Phone will not ring but will vibrate for calls and notifications, except for alarms." Slide the switch on the left edge up to Ring Mode so calls, alarms, and notifications function normally again.
Does the OnePlus 13 still have an Alert Slider?
Yes. The OnePlus 13 keeps the physical Alert Slider on the left side of the phone, and toggling it sets the system to silent, vibrate, or ring. It is not one of the OnePlus models that replaced the slider with a configurable key.
Why do only some callers fail to ring on my OnePlus 13?
When the issue is limited to one or two people, check whether that number is blocked in Contacts, and check your Do Not Disturb settings. Do Not Disturb can be configured so only allowed contacts ring through, which leaves everyone else silent.
What is the correct force restart for the OnePlus 13?
Press and hold the Power and Volume Up buttons together for more than 10 seconds. It is Volume Up plus Power, not Volume Down, which is used for other functions on OnePlus phones.
