Difficult to tell the difference between Chinese and European/international hardware. They are externally identical.
In Settings - About - Device info what is your firmware build number? Check it against the numbers here: http://www.futeko.com/newforum/index.php?topic=711.0 If you have a European/international firmware installed then the hardware is European/international.
Presuming you do have the European/international version I suggest reinstalling firmware using the upgrade button method. This will wipe the box and start from scratch, I think there's a good chance it will fix your problem. Latest (as of August 2016) 1.0.7 FW: http://www.futeko.com/newforum/index.php?topic=1130.0