When you turned it on and nothing comes up, then it was not powered on at all by the power supply. Try to check if the power supply fan is still spinning. If not anymore, you may need to change power supply.
Universal box is powered via USB port which is normally about 5v... I would recommend you first check the USB cable you are using, try to also check your USB port or change to a different one. Do you get any LED on the box once connected. do you get and USB to serial device listed under my devices one unit is connected. kindly post back with all this info so that i may help you further.
Regards
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Thanks, but the universal box i am talking about is this one "http://cgi.ebay.co.uk/Universal-Box-Dong... " and is powered with 12v, but when i power there is nothing
Hi, i have an "universal box""http://cgi.ebay.co.uk/Universal-Box-Dong... " the ones we use to mobile phones, now when i connect the power , nothing shows "is dead" what to do to repair it ? thanks
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