Hello everyone,
I've been reading here for a while and finally got my account working, so let me introduce myself. I drive a Mondeo MK4 facelift with a Convers+ cluster and I've spent the two months reverse-engineering its firmware. This forum was a huge help along the way, so I'd like to give something back.
I've published two open-source projects. Both patch the cluster firmware itself — no external hardware, no Raspberry Pi, no gateway injecting fake CAN IDs. And neither repo contains any Ford firmware: only the tools, so everyone patches their own dump.
1) convers-bt-audio — native Bluetooth-Audio track title & artist on the cluster
https://github.com/andrzejogh/convers-bt-audio
This one ties directly into the "Transmitting infodata on MM-CAN" and "can bus node app" threads. You had already mapped the media IDs there — USB titles on 4C7, and 4B0/4B1 as "Bluetooth Musik". The factory firmware happily shows USB titles (4C7) but simply ignores the Bluetooth-Audio stream. So instead of injecting text from the outside, I patched the firmware to route 0x4B1 into the same media store the factory uses for 0x4C7. The result: the cluster shows the BT track title and artist natively, exactly like it does for USB — up to 18 characters per field. Confirmed working on a real 1412-FL (part CS7T-14C026-CD).
2) convers-gauge-sweep — welcome needle sweep at ignition
https://github.com/andrzejogh/convers-gauge-sweep
A single full needle sweep when the cluster powers up, driven by the cluster's own factory sweep routine rather than any external signal. It ships in two variants: a default one with no menu entry, and one that adds a "Gauge sweep" item to the Advanced menu for people running m0rtar's modified firmware. This is a newer project, published for testing — feedback from other cars is very welcome.
Both projects come with full documentation and a Unicorn-based emulator test suite, so the patches are verified before anyone flashes anything.
Along the way I worked out a few things I'd be glad to share and discuss in the disassembly sections: the SRAM layout derived from the C-runtime startup, the gauge module's state machine, and the format of the Advanced-menu descriptors.
One small thing — my account can read everything but can't yet download attachments or post in the technical sub-forums. If an admin could activate that, I'd love to contribute directly to the Convers+ disassembly threads.
Thanks for running this place,
mocarz