ถึงว่าข่าวมันคุ้นๆ เหมือนอ่านมาแล้วเลย อ่านมาจากที่ macthai นี่เอง

คือ hardware ตัวนี้มีการเสื่อมสภาพตามจำนวนการไช้งานอยู่แล้วอะครับ ยิ่งออกแบบให้อยู่บนปุ่มที่โดนกดบ่อยด้วย บางชิ้นที่คุณภาพไม่ดีเลยไปก่อน

แต่เค้าคิดว่า "อาจจะ" สามารถแก้ปัญหา (ทำให้เสียช้าลง) ด้วย software ใด้ ซึ่งถ้าทำใด้จริงก็เป็นเรื่องดีครับ

"If you search for the specifications of a CMOS fingerprint device, you will find a number representing the lifetime of a device. That number is expressed in number of touches (before it completely dies). That number is provided in ideal conditions of usage and in a normal operating environment of temperature and humidity. But remember where you normally use your iPhone. You keep it in your “dirty” pockets, you leave it on different surfaces, and in humid and hot or cold and dry environments. Sometimes water drops on it or you forget it in your car under the sun. All these factors stress the working conditions of the sensor surface and contribute to speeding up its decay process.

Unfortunately there is no existing solution to this. Manufacturers can only try to make the fingerprint sensor last longer, but sooner or later that device will stop working properly. This is also why Apple cannot provide a fingerprint sensor for payments. And if they do, they are making a huge mistake, because the surface destruction process explained above introduces the most dangerous problem in fingerprint recognition: false acceptance, when after a while somebody else can be granted access to your device.

Companies like Motorola, Fujitsu, Siemens, and Samsung have tried to integrate fingerprints in their laptops and handheld devices, but they have all failed because of the poor durability of the sensing surface.

For you, this means that a fingerprint sensor on your phone will break after a while. How long after you buy it? Well, that will depend on where you live, how you use it, where you use it, how careful you are with it, and how clean your hands are."

http://weblog.invasivecode.com/post/57447455012/will-a-fingerprint-sensor-be-apples-next-hit

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