How to Fix Galaxy S25 USB-C Port Not Working After Update
If the USB-C port on your Galaxy S25 suddenly stops charging reliably, will not detect wired accessories, or keeps disconnecting after an update, the problem is usually tied to a charging settings glitch, debris in the port, a cable handshake failure, or a post-update system cache issue rather than immediate hardware failure.
If you want broader help for this device family, visit the support hub. Work through the fixes below in order and test after each one.
Fix #1: Restart the Galaxy S25 and test with a known-good cable
A fresh restart clears temporary USB service glitches that can appear after a firmware update. Test again with an official or high-quality USB-C cable and charger before changing deeper settings.
Fix #2: Inspect and gently clean the USB-C port
Use a flashlight to check for lint, pocket dust, or bent debris inside the port. If needed, carefully remove loose debris with a wooden or plastic tool and avoid anything metallic that could damage the pins.
Fix #3: Check the charging and USB settings
Open Settings and confirm fast charging is enabled if your charger supports it. If the phone connects to a computer but will not transfer files, switch the USB mode from charging-only to the correct file transfer option after plugging in the cable.
Fix #4: Remove accessories and test without the case
A thick case, magnetic accessory, or damaged port adapter can keep the cable from seating fully. Remove all accessories and make sure the connector clicks in firmly.
Fix #5: Wipe the cache partition
After a major update, stale system cache can break charging behavior, Android Auto detection, and wired data connections. Wiping the cache partition is a safe middle step before a reset.
Fix #6: Check moisture detection and let the port dry fully
If the phone shows a moisture warning, unplug it and let the port dry naturally. Do not force charging until the warning clears because moisture protection can block all USB-C charging and accessory use.
Fix #7: Reset all settings
Go to Settings > General management > Reset > Reset all settings. This keeps personal files but can clear broken charging, battery, and connection settings left behind by the update.
Fix #8: Get the port inspected if wired charging still fails
If multiple chargers and cables fail, the port may be physically damaged or loose. At that point, Samsung service is the right next step, especially if wireless charging still works but USB-C does not.