Update AcStag to version 1.0.7
We have released a new version of the AcStag app,.64.4.12799, for the following products:
- STAG-4 QBOX
- STAGQNEXT
- STAGQMAX
- STAG400 DPI
- STAG500 GO
- STAG-TAP-03
- STAGDiesel
Key Changes
The new version of the app includes a firmware update:
Stag500_v1_0_7__2026-08-05.nfp for controllers from the 500STAGGO family.
500STAGGO Firmware Update to Version 1.0.7
Firmware v1.0.7 introduces further improvements related to the operation of the high-pressure (HP) pump and system configuration.
Requirements
To operate controllers with firmware v1.0.7, you need the AC app, versionSTAG0.64 or later.
Changes in Version 1.0.7
The HP pump control open-circuit error indicator has been disabled
The behavior of the high-pressure pump system diagnostics has been modified by disabling the error message regarding an open HP pump control circuit.
New behavior of the target pressure map
The ability to completely disable the high-pressure pump using a target pressure map has been added.
Setting the value to 0 bar on the target pressure map completely shuts off the HP pump.
What has been fixed?
- The open-circuit error indicator for the HP pump control circuit has been disabled,
- The ability to completely disable the HP pump by setting the value to 0 bar in the target pressure map has been added.
Downloads
Implementation date: August 18, 2026
Application version: AC STAG.64.4.12799
Firmware version:STAG500 GO v1.0.7
Update file: Stag500_v1_0_7__2026-08-05.nfp
Required app version: 0.64 or later
Release date: August 18, 2026
Why should you update?
This update simplifies the configuration of the high-pressure system and introduces additional flexibility in controlling the HP pump, adapting the system's operation to various vehicle configurations.