For these models of Samsung, the LCD complete are with metel.
When you do the QC test, you will find the touch display can not work.
Here we will also show you some movies, then you will seee it more clearly.
When there is nothing stick on the LCD backside(For example, laying LCD screen on the table while testing it, the table can't touch with the LCD backside), we find it's touch insensitive.
This is because Samsung A10 is special, it consist of TFT backlight and Metal Plate. Therefore, it is sensitive than other models, we need to do sth anti-static. When it stick with bubble bag/the plastic on the backside, it is workable.
When you do the QC test, you can put one bubble bag under the LCD complete, to prevent the static electric.
For example, when you install LCD screen on the phone, there is a middle frame on the backside. It is like a bubble bag/the plastic, so it is workable when you install it on the phone.
The following models should use this method when testing
Samsung A10 / A10S / M10 / M20 / A20S / J415 / J610 / G570 / G610 / J330 / J327 / J727 / J737
Post time: Dec-06-2019