2025-10-16 21:01 UTC
Replacing the firmware on other phones might be harder due to secure boot restrictions, but it is likely that some design flaws exist which make it possible to circumvent those.
Right now, the next feature on my list is the sensor hub, which is implemented by an RTOS running on a generic Cortex-M33 core that is also responsible for GNSS and power management. I have also been experiencing some problems with WiFi that could perhaps be fixed more easily if the firmware were open-source. 2/4
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@affe_null@mt.abscue.de 2025-10-16 21:02
It would be nice if an open-source firmware could also act as a hardware abstraction layer for different SoCs from different manufacturers. AFAIK MediaTek SoCs have similar ARM-based coprocessors implementing a similar set of features. As an experiment, I decided to make a simple firmware that can boot on such coprocessors and communicate with the main CPU using virtio. I've been working on a prototype and am planning to publish it soon. 3/4