How to fix the problem of No Signal كيف تقوم بحل مشكلة عدم وجود إشارة

How to fix the problem of No Signal

If the screen shows you No Signal with blue/black background as above.

A, pls re-connect the HDMI cable again ,or use other HDMI cable to connect.    
B, if still no work with HDMI cable, pls use AV cable to replace the HDMI cable to watch TV. must match  correct color with each port.
C, if still no work with AV cable,pls  go to extra-setting-more setting-display-resolution.adjust the resolution lower then 720p, then check the box work or not .
D,if still no work,pls send us the mac number under the box. we will check and advice you.

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