[PROBLEM] TvHeadEnd not finding DVB device

[mk01]

@Ali3n0id

there are reports that newer kernels & fw doesn't boot on TURBO even before they did. No idea there.
but Turbo is not only option, mine RPIs never booted Turbo and I use personally

Code:

arm_freq=920
core_freq=420
sdram_freq=500
over_voltage=2

that worked before, works even now. try something similar. Maybe you can leave even arm at 1000 and just try lowering core at steps of 20 (from the Turbo which is 500).