Model: Samsung Galaxy A52 5G (SM-A526B/DS)
The error is almost always lint, dust, or a software glitch — not actual water.
Clean the USB-C Port (90% Fix Rate!)
The A52’s port is deep and narrow — lint builds up fast.
- Turn off your phone (optional).
- Use a flashlight — look for gray/white lint inside.
- Use a wooden toothpick or plastic dental pick (NO metal!).
- Gently scrape the center tongue and side walls.
- Pull out chunks — repeat until clean.
- Blow gently or use compressed air.
- Wipe with dry microfiber cloth.
Even 1mm of lint triggers the sensor!
Force Restart + Clear USB Cache
- Press and hold Power + Volume Down for 10–15 seconds until reboot.
- Go to Settings > Apps > ⋮ > Show system apps
- Search:
USBSettings - Tap → Storage & cache → Clear cache (don’t clear data)
- Restart phone
Dry It (Even If It’s Dry)
- Place phone port-down near a fan (cool air) or in AC room for 30–60 mins.
Avoid rice — it pushes dust deeper!
Test Charging
- Use original Samsung cable + charger.
- Plug in slowly — if “Charging”, leave it 5 mins.
- If error returns: unplug, wait 10 sec, retry.
Disable Fast Charging (Temporary Bypass)
- Go to Settings > Battery > Charging
- Turn OFF “Fast charging”
- Try charging — often bypasses the sensor.
- Turn back on later.
Safe Mode Test (App Conflict?)
- Hold Power button → Long-press “Power off” → Tap “Safe Mode”
- If it charges → a 3rd-party app is interfering.
- Uninstall recent apps (cleaners, battery savers).
Factory Reset (Last Resort)
Backup first! (Samsung Cloud or PC)
- Settings > General management > Reset > Factory data reset
Erases all data!
Quick Summary
Step
Action
1
Clean port with toothpick (most likely fix)
2
Force restart + clear USBSettings cache
3
Dry in AC room 30 mins
4
Try original cable, disable fast charging
5
Safe Mode test
Still not working? Port sensor may be faulty (rare). Visit a Samsung Service Center — free if under warranty.