How to Test a Used Controller Before Buying
Stick drift and worn buttons are the most common reasons controllers get sold. Here's how to spot them before you pay.
What You Need
A phone or laptop with Chrome or Edge, and a USB cable that fits the controller. Open this page before you meet the seller, so the tests are ready.
1. Inspect the Outside
- Stick tops: worn, shiny or torn rubber means heavy use.
- Shell: cracks near the grips or around the triggers.
- Charging port: check for bent pins and that the cable seats firmly.
- Sticky residue around buttons can mean a spill.
2. Check Every Button
Connect the controller and open the gamepad tester. Press any button so it appears, then:
- Press every button once, including the stick clicks (L3/R3), the D-pad, and the menu buttons. The counter should reach every button.
- Press each button slowly and lightly too. A button that only works when pressed hard has a worn contact.
- Watch for buttons lighting up on their own — that’s a short or a stuck button.
3. Check the Triggers
Squeeze LT/RT (L2/R2) slowly. The value should rise smoothly from 0% to 90–100% and return to 0% when released. Jumps, dead spots, or a trigger that never returns to 0% are faults.
4. Test for Stick Drift
Stick drift is the most common controller fault and the hardest to notice in a quick button check.
- Open the stick drift test.
- Put the controller down and press Measure drift. Don’t touch the sticks for five seconds.
- Read the result for each stick:
- Under 5%: normal.
- 5–12%: slight drift — usually fine with a small in-game deadzone, but worth a discount.
- Over 12%: clear drift. Expect characters or cameras to move on their own.
- Press Rotate sticks and roll each stick slowly around its edge. Both should reach the outer ring evenly.
Repeat the drift measurement after flicking each stick hard and letting it snap back — some worn sticks only drift after movement.
5. Test Vibration
In the gamepad tester, press Test vibration (supported in Chrome and Edge). Both motors should rumble smoothly without rattling or buzzing.
6. Check Wireless and Battery
- Disconnect the cable and connect over Bluetooth or the console’s wireless. Check inputs still register instantly.
- Ask how long the battery lasts. A worn battery that lasts only an hour or two is replaceable on some controllers, but it’s a reason to negotiate.
Red Flags: Don’t Buy
- Stick drift over 12%, or drift that appears after moving the stick
- Buttons that need hard presses or register twice
- A trigger that sticks or doesn’t return to zero
- A loose or damaged charging port
- The seller won’t let you connect it and test
If You Already Own a Drifting Controller
Slight drift can often be hidden by setting an in-game deadzone a little above the measured value — the stick drift test suggests one. Cleaning around the stick base with compressed air or contact cleaner sometimes helps. A lasting fix is replacing the stick module, ideally with a Hall effect stick that doesn’t wear the same way.
Test It Yourself
Key Terms
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