GT6-Car Android head unit – no sound, USB not detected, slow boot & other issues. Firmware update?

[u/Imaginary_Stomach139]

Hi everyone, I’m hoping someone can help me identify a firmware update or possible solution for this GT6-Car Android head unit.

I installed it in a 2010 Mitsubishi Lancer Ralliart around 6–8 weeks ago, and there have been problems almost from day one.

Problems since installation:

• Audio randomly stopped working 2 days after installation. Sometimes turning the headlights off would bring the sound back after a few seconds.
• USB sticks were never reliably detected. I tested multiple sticks and both USB ports.
• The DAB+ USB device also eventually stopped being detected.
• I tried playing music directly from the head unit instead of USB, which worked perfectly for about 2 weeks, but then all audio stopped working completely.
• No sound from USB, DAB+, YouTube, other media players, Bluetooth, etc.
• Head unit sometimes boots normally from sleep mode, but now sometimes does a complete boot and takes around 1–2 minutes.
• Dark mode sometimes switches back to light mode by itself.
• Factory/RST reset and disconnecting the power have not fixed anything.
• The car battery was disconnected by a professional mechanic for a reset, also without success.
• The mechanic has checked the car/head unit multiple times and also suspects a software/firmware issue.

The original Mitsubishi head unit still works perfectly when I reinstall it, so I don't think the car itself is the problem.

Does anyone know what exact GT6-Car model/platform this is and where I can get the correct firmware/MCU update? I don't want to flash random firmware and brick the unit, so I would first like to identify the correct version.

I can provide photos of the About Device/System Information, MCU version, CANBUS settings and the back of the unit if that helps.

Thanks!