Mr-fix: Created page with "By looking at the LSD.JXE and digging inside the key combos, it seams that there's a HMI hidden menu in Audi, Porsche, and Bentley builds. == What's the key combination for HMI_EM? == `Keycode ID` for it is `26`, and it's called `KEY_COMBO_HMI_EM`. Here's part of the code responsible for triggering the menu: private void triggerComboKeyAction(int n, int n2) { int n3 = this.getComboKeyCombination(n, n2); if (n3 == 8) { if (!this...."

2025-02-18T21:02:30Z

Created page with "By looking at the LSD.JXE and digging inside the key combos, it seams that there's a HMI hidden menu in Audi, Porsche, and Bentley builds. == What's the key combination for HMI_EM? == <code>Keycode ID</code> for it is <code>26</code>, and it's called <code>KEY_COMBO_HMI_EM</code>. Here's part of the code responsible for triggering the menu: private void triggerComboKeyAction(int n, int n2) { int n3 = this.getComboKeyCombination(n, n2); if (n3 == 8) { if (!this...."

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By looking at the LSD.JXE and digging inside the key combos, it seams that there's a HMI hidden menu in Audi, Porsche, and Bentley builds.

== What's the key combination for HMI_EM? ==
<code>Keycode ID</code> for it is <code>26</code>, and it's called <code>KEY_COMBO_HMI_EM</code>. Here's part of the code responsible for triggering the menu:

private void triggerComboKeyAction(int n, int n2) {
int n3 = this.getComboKeyCombination(n, n2);
if (n3 == 8) {
if (!this.framework.isPBuild()) {
this.kbdListener.triggerHmiKeyPressedEvent(26, this.key1TerminalID);
}
}
}

What does it mean? Allow me to fill in couple variables with specific values:

private void triggerComboKeyAction(3, 11) { //this is triggered by key TEL (3) and SW_NE (11)
int n3 = this.getComboKeyCombination(3, 11); // this will return n3 = 8
if (n3 == 8) {
if (!this.framework.isPBuild()) { //this checks if the build is NOT flagged as production release
this.kbdListener.triggerHmiKeyPressedEvent(26, this.key1TerminalID); //this triggers the HMI_EM (26) keycode
}
}
}

<code>SW_NE</code> is the upper-right software button. Sadly it is not present in Audi A3 8V facelift.

== How to mark release as not production build? ==
Let's check how the <code>isPBuild()</code> function looks like.

public boolean isPBuild() {
return this.getVersionInfo().isProductionVersion();
}

...and let's look for the <code>isProductionVersion()</code> function.

public boolean isProductionVersion() {
return Boolean.getBoolean("IS_PRODUCTION_MODE");
}

This looks like one of the VMOPTIONS flag. So let's modify the <code>run_lsd.sh</code> script by editing this part and setting it to <code>false</code>:

## Mark as production version which disables some developer features
VMOPTIONS="$VMOPTIONS -DIS_PRODUCTION_MODE=false"

COMBO HMI ENGINEERING MENU in Audi MHI2 - Revision history