Worked on reliability hardening for the STM32 I2C driver in the zephyrproject-rtos/zephyr repository, focusing on improving bus error handling in embedded systems. Addressed a documented issue where spurious BERR flags in controller mode would unnecessarily abort transfers, implementing a fix in C that allows transfers to continue in both V1 and V2 drivers, in line with STM32 errata. This change reduced transfer timeouts and aborts under noisy bus conditions, enhancing runtime stability for STM32-based boards. The work included updating inline documentation and errata references, supporting future maintenance and ensuring consistent driver behavior across multiple STM32 I2C versions.