You cannot do this with software alone. Gather these items:
Warning: If you do not have a matching ISP_Code.bin and ISP_Data.bin for your specific NAND (Toshiba, SanDisk, Intel), do not proceed. Using wrong firmware will corrupt the NAND's bad block table permanently.
Not all firmware works. The FC1178BC requires paired firmware matching the NAND flash ID (manufacturer: Toshiba, Micron, Intel, Hynix) and CE (Chip Enable) count. firstchip fc1178bc firmware hot
Yes, but with a caveat. The new firmware fixes the random disconnects, but it cannot fix physics. The FC1178BC is a 55nm process chip; it will always run warmer than a modern 28nm controller.
My advice:
Do this at your own risk. Incorrect shorting can destroy the controller or short the USB port. Use insulated tools and work on a non-conductive surface.
You are a candidate for this repair if your drive exhibits: You cannot do this with software alone
Place the FC1178BC drive in an anti-static bag, freeze for 20 minutes, then plug in quickly. Cold NAND retains charge longer, possibly allowing firmware read before bit rot. This is the opposite of "hot"—but users confuse the terms.