While "Firmware Update Tool v2.3.00.exe" might sound like the most thrilling thing since sliced bread—or at least since v2.2.99—it is essentially the digital equivalent of a "Check Engine" light that actually fixes the car for you.
Check data cables, switch to a USB 2.0 port instead of USB 3.0 (for better legacy chip compatibility), and verify device drivers in Windows Device Manager. Error: "Verification Failed / Checksum Mismatch" firmware update tool v2.3.00.exe
Resolving "handshake" issues between the device and the motherboard. While "Firmware Update Tool v2