To apply this update, you generally use the software. Download the .rar file and extract the firmware.

: .rar (a compressed archive file). You will need a program like 7-Zip or WinRAR to open and extract the contents. Usage Instructions

your transmitter to your PC using a high-quality Type-C cable.

your existing model settings via FlySky Assistant before proceeding. Run the update through the software's firmware update tool.

: If your query is related to IRS Form 1042 (a tax document), do not download a .rar file from an unofficial source. The official IRS website provides tax forms exclusively in .pdf format. Downloading tax documents as executable or compressed archives can lead to malware infections. 2025 Instructions for Form 1042 - IRS

: The file is typically hosted on the official FlySky download site.