How to Fix OnePlus 15 USB-C Port Not Recognizing Cable

When your OnePlus 15 does not recognize a USB-C cable, charging may fail, file transfers may not work, or accessories may refuse to connect. This issue often appears suddenly, even if the cable worked before. In most cases, the problem is caused by dirt, settings conflicts, or temporary software glitches, not hardware damage.

Why Your OnePlus 15 USB-C Port Is Not Recognizing a Cable

• Dust or lint is blocking the USB-C port.
• The cable or charger is damaged or incompatible.
• USB preferences are set incorrectly.
• Charging is restricted by battery or power settings.
• A temporary system bug is affecting USB detection.

1. Inspect and Clean the USB-C Port

The USB-C port collects dust over time, especially if the phone is carried in a pocket or bag. Even a small amount of lint can prevent proper contact between the cable and the port pins.

Power off your phone, and then unplug the cable.
Use a wooden toothpick or soft brush, and gently remove debris from the port.
Turn the phone back on, and then reconnect the cable to test it.

2. Try a Different Cable and Charger

Not all USB-C cables support data transfer or fast charging. A damaged cable may still fit the port but fail to communicate with the phone.

Disconnect the current cable, and then connect a different USB-C cable.
Plug it into another charger or power adapter, and check if the phone responds.
If the new cable works, the original one needs replacement.

3. Check USB Preferences

Your phone may be charging but not recognizing the cable for data transfer. This happens when the default USB mode is set incorrectly.

Connect the USB-C cable, and then unlock your phone.
Open Settings, and then tap System.
Tap USB preferences, and choose File transfer or Charging as needed.

4. Disable Battery or Power Restrictions

Some power management features limit charging speed or accessory detection. These restrictions can interfere with how the phone responds to a connected cable.

Open Settings, and then tap Battery.
Tap Power saving or charging optimization, and turn off any active restrictions.
Reconnect the cable and check if the port is detected properly.

5. Restart the Phone

A restart refreshes background services that handle charging and USB communication. This step often resolves issues caused by temporary system errors.

Press and hold the Power key, and then tap Restart.
Wait for the phone to fully boot up, and then connect the cable again.
Check if charging or data transfer starts immediately.

6. Test the Port With Another Device

Testing helps confirm whether the issue is with the phone or the cable. This step prevents unnecessary repairs or replacements.

Connect the USB-C cable to another phone or device.
Check if it charges or transfers data normally.
If it works elsewhere, the issue is likely with your OnePlus 15 settings or port.

USB-C issues on the OnePlus 15 are usually easy to fix once you identify the cause. Cleaning the port, using the right cable, and adjusting system settings often restore normal charging and connectivity without professional repair.

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