how to identify solo2 original and clone?

[taree]

just received a used solo2 which owner claim it is original.
looks like original according to some signs but many experts are here in this forum
which can identify original and clones.i took some pics from inside and back.

 

[Mito]

I think that your receiver is original.
However, if you still have doubts, have a look here: How to detect Solo2 clone box