# New GDI Driver firmware version 4.0

**URL:** <https://community.ecumaster.com/t/new-gdi-driver-firmware-version-4-0/4684>\
**Category:** EMU PRO\
**Tags:** update\
**Created:** [November 3, 2025, 5:26pm UTC](https://community.ecumaster.com/t/new-gdi-driver-firmware-version-4-0/4684 "2025-11-03T17:26:17Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Jan\_Matlag\_ECUMASTER](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/jan_matlag_ecumaster/32/1466_2.png) [@Jan\_Matlag\_ECUMASTER](https://community.ecumaster.com/u/Jan_Matlag_ECUMASTER)\
**Post date:** [November 3, 2025, 5:26pm UTC](https://community.ecumaster.com/t/new-gdi-driver-firmware-version-4-0/4684/1 "2025-11-03T17:26:17Z")

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New GDI Driver firmware 4.0 is now available for download.

New and improved features:

- Changed the “Period min” parameter to “Off time min”
- Added "Crank time max parameter for pump outputs

To update the GDI Driver, connect to the device and select:  
Upgrade → Download from ECUMASTER .com server

Sincerely,  
**The Ecumaster Team**

 ![GDIdriver](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/2X/b/b9cb47255ae48d629108bdf0743c27882bfa159f.jpeg)