After two days of rabbit holes, I finally managed to activate both Android Auto and Apple CarPlay on my MIB2 for €0. Along the way I hit several obstacles that aren’t clearly explained anywhere online, so I’m sharing what worked for me.

Disclaimer
I’m not a technician. This is based on personal testing. Proceed at your own risk and make backups where possible.

My setup

• MIB2 Technisat (MST2… ending with “T”)

• SD card slot available (glovebox)

• Green Engineering Menu accessible

• OBD2 adapter (Carista; any reliable ELM327 v1.4 should work)

A lot of guides are incomplete or assume different hardware. I consolidated the bits that actually mattered on my unit, including the parts that commonly trip people up (GEM version, Toolbox structure, patch selection).

Steps I followed

1. Confirm compatibility: Software train starts with MST2 and ends with T (Technisat).

2. Enable Green Engineering Menu (GEM): Via adaptations and OBD app.

3. Prepare SD card: FAT32, copy MIB toolbox to root. If GEM < 4, copy the cpu folder from toolbox/gem/ to SD root as instructed.

4. Install Toolbox via Software Update: Run update from the head unit; expect 2–3 reboots.

5. Run the patch: In GEM → mibstd2_toolbox → Tools → select “Patch tsd.mibstd2.system.swap and generate EL.”

6. Toggle features: In adaptations, activate Google GAL and Apple DIO (if not already active).

7. Reboot and verify: Check MirrorLink menu; Android Auto and Apple CarPlay icons should appear. Use a compatible cable.

Common snags I hit (and fixes)

• GEM version below 4: Needs the extra cpu folder copied as above.

• Single SD slot: Temporarily remove the maps card.

• Toolbox not detected: Reformat SD (FAT32), re-copy files, ensure correct directory structure.

• Adapter issues: Make sure your OBD2 dongle truly supports ELM327 v1.4.

VIDEO:

https://www.youtube.com/watch?v=JOUWVIDEOID

You have Navigation unit,correct?

2 minutes ago, Cairus said:

You have Navigation unit,correct?

Yes

and that is a prerequisite for this solution to work