EZbook 3 Pro issues?

[Stefan]

1. Check your brightness settings. The high frequence noise seems to be common. On my EZbook it starts exactly when i set it to under 37%. Lower brightness = higher and louder. Seems to come from a part in the upper right corner. Maybe some kind of PWM effect. I have seen/heard the same on PWM regulated Flashlights.
2. My keys are pretty accurate. I rarey notice that a key doesnt react. Space key reaction in the middle and left is perfect. On the right side i have to press slowly on the very edge to cause a failure. Someone in another thread mentioned the same and said it was getting better after some time.

[Adrian Popescu]

Stefan, thanks for your reply, indeed the high frequency sound appears when brightness is below 37%.
Regarding the space key, mine is pretty bad, it does not register presses on the edges if i do not press hard enough. Pressing on the center is ok

[Rod]

I ordered a Jumper EZ Book 3 Pro. I was quite happy with the performance as it was to be used for travelling and not to replace my i7. However, whilst still setting it up, during the 2nd or 3rd day, the down arrow key fell out of the keyboard. As it is not a full size key, it was very difficult to fit the parts back together. Nothing had broken but they had come out. The down arrow key is only about half the size of the rest of the keys. In the end, I returned it to Gearbest. In future, may look at getting the EZ Book 3L Pro. This has a 14″ screen but more importantly, full size arrow keys.

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