: Interrupting the power during the flash process can render the emulator unusable.
signal to VCC (usually by placing a jumper or temporary wire on the "J3" header) to put the chip into programming mode. : Use tools like the STM32 CubeProgrammer , or the official HxC SecSerialBridge software to upload the hxc_fw_installer.hex file to the device. Finalization Hxc-fw-installer.hex
: To transform a standard, inexpensive floppy emulator into a high-performance HxC-compatible device. : Interrupting the power during the flash process
Poor power supply or bad USB cable.