amiko mini combo, switches on but nothing

plugged everything in, switched on, box says on, hdmi switches over to correct channel but nothing comes through?
tried through a hdmi my ouya and ps3 works on, but nothing through this.
am i missing something simple?
after the box says on, there is just a green light bottom left side, no time or channel number, is it dead?
 
Have you followed the guide linked above ?

If you press menu does anything come up on the screen ?
 
got picture, had good level and quality and was advised to put software update on. Now cant get level or quality. Using Gateshead cable frequency 4096 s that right?

---------- Post Merged at 07:48 PM ----------

Hi found frequency on 5710 now excellent
 
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