No signal on Sony Bravia

I have just setup a Zgemma H2S for a friend, was working perfectly on my Samsung TV but he has plugged it into his Sony Bravia and no signal? Going to get it back from him and re test it on my tv again.
 
No he's using his own HDMI cable. I'm going to try my cable on his TV tomorrow and try different ports. If still no signal then will try on my TV to see if the HDMI port is fried on the Zgemma box. Cheers
 
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