I’m working with a single 64 MB .bin file that holds pure binary data and I need an expert hand to modify the existing data inside it. The task involves three concrete adjustments: changing specific values, updating the current format where it no longer meets requirements, and appending entirely new sections so the file aligns with a newer spec. You’ll take the original image, locate the target regions, implement the binary-level edits, then return a clean, working file that passes a byte-for-byte comparison on the untouched portions. Alongside the revised .bin, I’d like a brief change log noting byte offsets and the rationale for each change so future maintenance stays simple. If you’re comfortable using hex editors, scripting with Python (for example, struct or binascii), or any toolchain you prefer for low-level work, you’ll fit the bill perfectly.