The bootloader cannot lock onto the start bit.
Specialized "hot" modes or recovery protocols designed to handle sessions interrupted by power loss. community.nxp.com Typical Use Cases Consumer Electronics: flash loader tool 750 hot
Unlike massive software suites, this tool is portable and requires minimal system resources. The bootloader cannot lock onto the start bit
If you meant a different “750 hot” tool (e.g., for another MCU brand), let me know. Otherwise, the above covers the STM32 Flash Loader 750 “hot” variant used in embedded security testing. for another MCU brand)