UR44 distorted inputs at all levels of input gain

I have had my UR44 for a couple years now and it recently began making strange distorted noises (robotic) when plugging in mic or guitar into the front 2 inputs.

I am afraid it may be a blown pre-amp and if so how would you suggest getting it repaired?

Thanks in advance,


Never mind, I discovered my guitar itself was making these strange sub harmonic oscillations possibly because of the active boost circuit it has, might be a dead battery…

Hopefully I can get many more years of use out of this interface, my fav of all the ones I have owned thus far and I got it surprisingly cheap!