Connection · 2026-04-02
Bluetooth controller keeps disconnecting
If the same pad is stable on USB and drops on Bluetooth, the sensor is not the first suspect.
What to check first
Watch the player slot while you move the pad away from the computer. A disconnect clears the slot. Interference, a low battery, and an OS sleep policy do that. A stick fault does not. Retest on the homepage tester over USB. Linux Xbox pads sometimes need the distro’s driver before the radio stays up.
- Charge fully before a long Bluetooth sample.
- Forget the device and pair it again once.
- USB stability means you can stop opening the shell.
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.