How to safely clean your phone’s charging port, step by step
Dust and lint from your pocket can block the plug, and the phone stops charging. Cleaning the port takes 10 minutes and costs nothing.
- Most common cause
- lint and dust packed at the bottom of the port
- Time
- 10–15 minutes
- Repair shop, if nothing helps
- 160–480 zł to replace the port
Switch the phone off before cleaning. Do not use metal objects (pins, needles, paper clips), because you can short or bend the contacts. Do not charge a phone that got wet or has a swollen battery.
Step by step
Check the cable and charger
Before you clean the port, try a different cable and a different charger. This is the most common cause of charging trouble.
Shine a flashlight into the port
See whether there is a grey layer of lint at the bottom. If so, the plug does not go in all the way and you have to hold it at an angle.
Switch off the phone
Switching off lowers the risk of a short circuit while cleaning. Take off the case too, so you can reach the port easily.
Pick out the lint with a wooden toothpick
Move it gently along the walls of the port and do not press on the contacts in the middle. Pull the lint outwards, do not push it deeper.
Blow out the port
Use a rubber air blower or blow with your mouth. Use compressed air carefully and from a distance, because a strong jet can drive dirt deeper.
Try charging again
Switch the phone on and plug in a working cable. The plug should go in all the way and hold firmly.
If the port was wet
Wait until it dries before you plug anything in. Do not dry it with a hair dryer. Moisture in the port plus current means a risk of corrosion.
- The port is clearly loose, or the contacts are bent or burnt.
- The phone gets hot while charging or you smell burning.
- The phone got wet.
- The battery is swollen, or the screen or back lifts.
How much does a repair shop charge?
| Port cleaning at a repair shop | 40–110 zł |
| Charging port replacement (Android) | 160–380 zł |
| Charging port or flex cable replacement (iPhone) | 200–540 zł |
| Battery replacement, if that is the cause | 200–680 zł |
Typical prices at independent repair shops in Poland, October 2026. Authorised service centres and big cities can be more expensive.
Repair or buy new?
Cleaning is a free first step and often fixes the problem right away. If it does not help, replacing the port is one of the cheaper repairs and almost always pays off. It is worse if the motherboard is to blame. In that case, use the calculator to see how much the phone is still worth.
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Open the calculator →FAQ
What should I clean a phone port with?
A wooden or plastic toothpick, then a rubber air blower. Avoid metal.
Can I use isopropyl alcohol?
Only at a repair shop, or with the phone switched off and a minimal amount. A dry toothpick is usually enough.
My phone only charges at an angle. What does that mean?
Most often it is packed dirt in the port, less often a worn port. Start by cleaning.
Can I do the same on a tablet?
Yes, a tablet port is cleaned the same way.