DualSense Edge Calibration Now Supported!

After many months of reverse engineering, I can finally say that dualshock-tools.github.io now supports calibrating the analog stick modules of the DualSense Edge.

This has been a long-standing problem for people trying to repair stick drift on the Edge. Replacing a potentiometer usually means the stick is no longer centered — and while the normal DualSense allows you to fix this with a simple software calibration, the Edge didn’t.

Until now.

What is the DualSense Edge?

The DualSense Edge is Sony’s high-end controller for the PS5. One of its best features is the removable analog stick modules, which are easy to replace without opening the whole controller.

Unfortunately, these modules are almost always sold-out and still use standard potentiometers, not Hall effect sensors. This means they wear out over time and cause drift, just like regular controllers.

The idea is that you can buy a new module and replace it — but even that isn’t a full solution.

The Real Problem

If you try to repair the stick by replacing a worn-out potentiometer (instead of the whole module), the stick will likely not be centered anymore. That’s normal: potentiometer tolerances vary.

On the normal DualSense, we could send a command to calibrate the center and fix this.

But on the Edge, that same calibration command does nothing. The controller replies with:

0x0312

instead of a plain 0x0101 which is “OK” in the DualShock language.

And… nothing is saved.

We spent over a year testing HID commands and reverse engineering the controller to figure this out. Nothing worked.

It seemed like calibration just wasn’t possible.

The Breakthrough

The first real breakthrough came thanks to Metal Plastic Electronics.

In this video, he disassembled a DualSense Edge module and reversed the circuit. What he found was that the flash chip inside the stick is write-protected by default. There’s a test point on the PCB that controls this — it needs +1.8V to disable write protection, but it’s normally pulled low.

That was probably the missing piece for lewy20041, the developer of DriftGuard. Shortly after the video came out, he found the right command to calibrate the Edge and published an open-source script to do that.

You can find lewy in our Discord community if you want to say thanks.

How to Calibrate

If you want to calibrate your DualSense Edge module, you need to do two things:

  1. Modify the hardware as reported here:
    • Open the module
    • Solder a wire between the WP (write protect) test point and a +1.8V test point
    • This disables write protection on the flash chip
  2. Use the calibration tool:

Only after step 1, step 2 will actually save the new calibration.

Once the module is calibrated, you can either remove the wire or keep it there.

Why This Matters

This update means that you can now:

  • Replace individual potentiometers
  • Recenter your analog sticks
  • Fix drift without buying a whole new module

It’s a small victory, but one that can help people repair their controllers instead of throwing them away.

I’m really proud of this update, and grateful to everyone who helped make it happen.

Give it a try: dualshock-tools.github.io

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If you want to get in touch, drop me an email at ds4@the.al or ping me on IRC (the_al@freenode|libera|hackint) or Discord (the_al).