pictured above

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Shortcoming Of Iphone 4
we wait iphone 4 come for about several month. And it is the hottest things during this year. However, it is not perfect. There are also many problems of iphone 4.
Frist, the iphone 4 screen problem.
The iphone 4 screen is named Retina (Retinal) screen display technology with high pixel density LCD screen. The screen pixel density is 326 pixels / inch (ppi). The resolution of the iphone 4 screen is four times of the previous generation Second, provide unprecedented clarity.
Retina display technology can improve the contrast. Apple said, iPhone 4 contrast is 4 times higher than the previous product. Currently, most cellphone are using LCD screen, some manufacturers directly on the surface for processing and display various different features for example IPS can improve the perspective of contrast and color saturation. In addition to make use of IPS technology, iPhone 4 was more intensive use of pixel screen and LED backlight technology outsideto enhance the viewing angle and color display. There are various other different technology, LCD picture quality even more outstanding performance.
However, the screen of iphone 4 is scratched and shattered easily. There is a post in the iphone 4 forum which is about whose iphone 4 screen is replaced for scratched or shattered within three months. You may find it crazy that there are more than 100 persons who have this experience. One of them said that he got his new iphone 4 only 6 months, but he had replace his iphone 4 white screen for three times.
Second, iPhone 4 signal problems.
Apple's iPhone 4 signal problems have been the source of a barrage of complaints by customers complaining of a faulty antenna and now Steve Jobs has broken the silence. In an e-mail Jobs downplayed users' reception gripes as a "non-issue. " Meanwhile, others within Apple are advising iPhone 4 users to avoid gripping the device from the lower left corner.
The metal bands surrounding the sides of the iPhone 4 also acts as antennas for the device, and the signal drop problem seems to appear when a user touches both of the black lines on the phone's metal sides towards the bottom, according to corroborated users reports.
As the first batch of iPhone 4 smartphones reached the market on Thursday, several users reported that they are having poor reception issues with their new device when holding the phone by its metal sides in two opposite places.
"Gripping any phone will result in some attenuation of its antenna performance, with certain places being worse than others depending on the placement of the antennas. This is a fact of life for every wireless phone, " reads an official Apple statement on Thursday.
Jobs also replied to a few complaints sent to his e-mail inbox. One MacRumors reader asked Jobs what is going to be done about the signal dropping issue, and the Apple CEO replied in his typical brief manner: "Non issue. Just avoid holding it in that way. "
Apple currently sells a $29 rubber "Bumper Case" for the iPhone 4 (pictured above), which covers only the sides of the device, something that made Mashable's Barb Dybwad ask whether this indicates that Apple already knew about the potential reception issues with the phone.
PCWorld also did its own tests of iPhone 4 signal and took the new phone for a spin in San Francisco alongside an iPhone 3GS. PCWorld was able to replicate the signal problems when covering the bottom left edge of the phone, something that did not occur when the phone was laid flat on a table with the antenna untouched. This article originate from the TOPONS. COM, please indicate the source if retweet, thanks very much!Topics related articles：


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