A: Sharp removed it in 2019. The only "official" copies are archived on Wayback Machine – but those .exe files are corrupted.
Copy this file directly to the root directory of your USB drive (do not put it inside a folder). Installation Guide: Step-by-Step Sharp Lc-32le280x Firmware Download REPACK
John downloaded the firmware and followed the instructions to update his TV. The process was straightforward, and after about 10 minutes, the update was complete. John restarted his TV, and to his relief, the issues were resolved. The picture no longer froze, and the TV stayed on. A: Sharp removed it in 2019
Using unofficial "REPACK" firmware from unverified sources carries risks, including permanently "bricking" your TV if the file version does not match your specific panel or mainboard version. Support - Sharp Global The picture no longer froze, and the TV stayed on