Boss Se-70 problem

Hi Friends,

I have recently bought a Boss Se-70, its turns on and even the tuner works properly, but when I turn on an effect, the effect does not work and only the clean sound of the guitar is heard.

What do you think is the problem? Is there a solution?

Please check the video in this link:

https://www.dropbox.com/scl/fi/jllyv...=n9rmtxxh&dl=0









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