I don´t think the noise comes from the speakes. To me the R22 inductors (3 on the board in total) seem to be the problem.
I´m not completely sure but when you google for coil whine, you will find some references to the R22 inductors.
Yesterday, I received my Teclast F7 (ordered on February 2 via Germany Priority Line).
Overall, the build quality is great and I´m really satisfied.
I managed to peel off the screen protector (only one layer). Now i seem to have some matte second layer below the first one. You can see because there are some very little air bubbles between this…[Read more]