Even without custom firmware, you can improve your HDR-1100S experience through hardware and settings adjustments: New Arris Freesat Recorder or Reconditioned Humax HDR1100S?
Updates typically happen automatically over-the-air (OTA). If yours fails, you can manually update via USB using a FAT32-formatted drive. Performance Tweaks & Hardware Upgrades humax hdr1100s custom firmware
UKSFAA 3.01.01 (Released May 2022).
This update specifically addressed issues with the BBC iPlayer getting stuck on the loading screen. Even without custom firmware, you can improve your