This is the critical section. Follow this exactly. The phrase "repack work" implies that the standard USB procedure has been modified. Standard MSD (Mass Storage Device) mode often fails; here is the Safe Mode repack method.
If you have Linux experience, you can:
However, I must give you a first:
Since there isn't a literal "essay" on this specific technical string, I’ve put together a comprehensive guide on what this firmware is, why you might need it, and how to safely handle the "repack" versions you find online. Understanding the Sharp LC-32LE280X Firmware "Repack" 1. What is the LC-32LE280X? sharp lc32le280x firmware download repack work