16. Special mode (blinker buttons)

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ztakis edited this page Jul 2, 2026 · 1 revision

If SWD is not available, you might need to enter special mode:

Remove all power from the dash, like disconnect main cable (julet).
Connect st-link pins correctly and in a secure way but not the 3.3V pin.
Plug st-link to USB.
Hold both blinker buttons & keep holding.
Plug in main power cable.
You can now release the blinker buttons.
As a connection test, run option [2] in Launcher script, or the dump.bat(sh) script directly.

It is possible that latest firmwares have disabled this scpecial mode.

Main cable connectors

rsz_zt3

rsz_g3

rsz_julet_4

You can also ground the blinker connectors instead of pressing the buttons.

rsz_420260605_103335

rsz_20260605_103345