: Go to the following path: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\MediaProperties\PrivateProperties\Joystick\OEM

If a match is found, the game reads a complex sequence of structural integers embedded in the file. These numbers translate raw hardware inputs into specific in-game commands like passing, sprinting, and trick execution. If your controller isn't listed, FIFA falls back to a basic generic profile, which usually disables the right analog stick entirely. Why the FIFA 09 to FIFA 19 Era Matters

Here is a story that bridges the decade between these two iconic entries in the franchise. The Ghost in the Code: A FIFA Odyssey

The symptoms of a missing or misconfigured string in devdata.dat include:

You try to pull off a step-over or heel-to-heel flick, and absolutely nothing happens.

Because FIFA 09 sits right on the edge of this era, its internal peripheral database is severely outdated. When you plug in a modern controller, the game looks at its hardware string, fails to match it against its pre-compiled internal list, and subsequently: Leaves button mapping menus completely blank.

Configured for skill moves, tricks, and first-touch directional control.

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The file is a vital configuration document used in PC versions of EA Sports' FIFA series—specifically spanning from FIFA 09 to FIFA 19 —to map, calibrate, and recognize third-party gamepads and controllers. For a decade, this specific file was the primary destination for PC gamers looking to fix unmapped buttons, unresponsiveness, or a broken right analog stick on non-Xbox controllers. What is Devdata.dat?

This article explores the data management, technical nuances, and modding potential of FIFA 09 and FIFA 19. FIFA 09: The Foundation of Modern Data (2008)

In FIFA 09, player data, attributes, and team rosters were largely stored within packed data files (often with .db or .dat extensions inside data folders).

: Double-click OEMName and change the value data to a controller that is fully supported by the devdata.dat file natively, such as Logitech Dual Action . Method 2: Manually Editing Devdata.dat

Open the file using a text editor like to view the raw controller mapping strings.