Download Humax Firmware drivers, firmware, bios, tools, utilities - Sorted by operating system Humax HDR Fox-T2 Digital Recorder Custom Firmware 1.02.32_mod/3.10 Hello. I have a Humax HDR-FOX T2 which is boot cycling, it started as an intermittent problem but is now permanent. (i.e Start System - Custom Firmware - system start etc). I removed HDD and reinstalled official firmware, which works fine, I unstalled the custom firmware 3.13 and it is working fine. I assume then it is a HDD failure. rGDmr1.