Repair · 2026-03-26
When to replace an analog stick
Replace the module when a still sample stays high after firmware and with remappers off.
What to check first
A new module should drop the resting radius into the healthy band on the drift test. If it does not, the new part is bad, the calibration write is fighting it, or you replaced the wrong side. Hall-effect and TMR modules avoid the carbon track. The browser cannot see which sensor you fitted. The radius can.
- Mark left and right before you open the shell.
- Sample again before you glue anything.
- Keep the old module until the new number is healthy.
Confirm the reading on the live tester before you buy parts or change firmware. The number on that page is what your browser actually receives.
A practical next step
Repeat the same test after each change and write the resting radius down. A fix that does not move that number did not fix the sensor. If the offset stays above about 0.12 with your hands off the sticks, plan a module replacement rather than another software pass. Model notes live in the controller library.
Frequently asked questions
Does this page change my controller?
No. GamepadTesters only reads the Gamepad API in your browser. Calibration writes, firmware updates, and stick swaps happen in the maker’s tool or at a repair bench.