: Since the patch is in .rar format, use a utility like WinRAR or 7-Zip to extract the contents.
: The manufacturer often posts updates on the ifix.net.cn forum . Download RT809H 20201023 Patch rar
Finding official download links for specific legacy patches can be difficult, as the developer usually promotes the latest full version. : Since the patch is in
: Most RT809H patches need to be copied into the main installation directory (e.g., D:\809H\ ). Download RT809H 20201023 Patch rar
: Execute the .exe file within the extracted folder. If it is a "Toolchain" or "Plugin" update, you may need to paste the files into the existing TOOLCHAIN folder and extract them there.
: Community-maintained repositories like the RT809F & H Update Telegram channel often host older .rar and .exe patches.