So what's the problem with this ruKernel firmware for fb3390? ->
AVM FrtizBox 3390, 121.05.60-26937_AnnexA+B,Labor1,EN,DE,ES,IT,FR
It seems the international firmware. I guess it's not possible to write in the German version.
p.s. My fritzboz 3390 its annex J.
---note: This time I think I will not translate into German.