Clone phone can have slight variations on the screen so yes an original part will not be compatible. You will have to find out what the knock off name is and try to order the part. Still do some code tests to verify that you actually do have a cloned phone. The techs could have been wrong.
Lets say it is Summer time and you want to set your ceiling fan to spin the correct direction. When looking at your fan from below, the fan should be turning counter clockwise, or forward. The reason for this forward spin direction is so you can get as much airflow as possible when it is hot outside.
During the summer, you want the air blowing directly on you so you will feel cooler from the wind chill effect (which is how fans cool you off). So stand under the fan and turn it up on high speed. If you Do Not feel the air very well, then turn the fan off and flick the reverse toggle switch. Turn it back on high speed. If you feel more air, you have it in the right position. So whichever position you feel the most air movement when standing directly under the fan is the correct position for summer.