Signatures change with new firmwares. The PKG for 4.91 will not install on 4.82. Always use the version matching your OFW.
The current latest version of is v3.5.0 , which was released in March 2026 to support the surprise 4.93 Official Firmware (OFW) update. The installer typically downloads a file named Latest_HEN_Installer_WMM_signed.pkg , which is a "signed" package that allows for easier installation and license activation without needing to manually resign files. Official Download Sources latest hen installer signed pkg download
When downloading and installing the Hen Installer signed PKG, keep the following safety precautions in mind: Signatures change with new firmwares