1. The black screen of Apple mobile phone can be summarized into several situations:

The first one is that the iPhone itself is a refurbished machine or other machine with quality problems, and it will appear occasionally. Unstable black screen, but it is not screen damage.

The second way is to enter Apple's DFU mode by accident, which is Apple's recovery mode.

The third possibility is that the Apple system cannot be started.

The fourth is hardware damage and the screen is broken.

Except for the fourth point, which really needs to be sent to an Apple repair center for repair, the rest are software problems that can be solved by yourself.

2. Methods to solve the black screen on Apple mobile phones:

First solve the first situation, which is the black screen caused by the instability of the iPhone itself. This kind of black screen can be attributed to unstable automatic shutdown, which is due to the poor quality of the machine, causing it to shut down for no reason. Because there is actually no big problem with the hardware, just hold down the power button and wait for it to turn on.

Let’s introduce the second situation. DFU mode is a mode where the Apple system cannot be turned on due to problems, and you can use iTunes to restore it when entering recovery mode. However, there is no problem with your phone. If you accidentally enter the DFU mode and it cannot be turned on, it is considered to be a malfunction of the phone. In fact, it is easy to solve.

Just press and hold the power button and the home button at the same time and wait for your iPhone to respond. It usually takes a few seconds. If there is no response for dozens of seconds, don’t be persistent. See the method below. !

The above is due to entering the DFU mode by mistake. If it is the third situation, you need to enter the DFU mode. How to enter it? First, iTunes must be installed on the computer and the latest iOS system can be downloaded. Or have backup recovery files in advance. Of course, the computer can be connected to the Internet during the recovery process and can also be downloaded online. It just takes a long time to wait.

Then connect the mobile phone with a black screen to the computer with a USB cable, press and hold the power button and the home button at the same time for 10 seconds (it is best to be more accurate) and then release the power button at the tenth second (make no mistake) ) keep pressing the HOME key. It doesn't matter if the connected icon appears on the screen or the screen goes black. iTunes will respond by recognizing the machine.

Then press the Shift key on the keyboard and choose to use iTunes to restore your phone. Then it will prompt that after the recovery is complete, the problem should be solved when you turn on the phone. This method also works for iPods and iPads.

Okay, the above methods are related to solving the problem of black screen on iPhone. Of course, if it still cannot be solved, we can send the phone to the after-sales service to help you solve it. If it is less than 1 year old, it may still be possible. Get a new Apple phone.

iPhone 6 Plus is a smartphone launched by Apple in the United States on September 10, 2014, Beijing time. The iPhone 6 Plus uses a 5.5-inch screen, making it the largest screen phone in Apple’s history. iPhone 6 Plus was launched in mainland China on October 17, 2014.

Appearance and Design

The design of iPhone 6 Plus is consistent with iPhone 6, and the workmanship continues Apple’s high standards. What is different from previous generations is that compared with the angular design of previous generations of iPhone, it has a curved design from the edge of the screen to the frame. The glass and the frame fit very tightly, and the connection between the two is excessive. Very natural, more like a unibody design. It changes the previous design style and makes the phone very sleek and difficult to control.

iphone 6 plusTechCrunch and Engadget both mentioned that the iPhone 6 Plus is reminiscent of the iPad mini, especially the latter’s sides are also curved. The iPhone 6 Plus also requires both hands to operate. If you want one-handed mode, tap the Home button twice (not press it down), and the displayed content will move down by about half the size.

The Verge believes that the iPhone 6 Plus design has a screen-to-body ratio problem that is too low. Not only is the fuselage area larger, but it also feels top-heavy in the hand because the fuselage is too long.

At the same time, the protruding camera, thick white strips and three-stage design of the iPhone 6 Plus result in a lack of aesthetics in the lines on the back of the fuselage. ?[5]

Display

In terms of display, the iPhone 6 Plus is stunning. It is the iPhone with the highest screen resolution (up to 401ppi). The picture is very sharp. There is a polarizer inside the screen, so you can see it more clearly in the sun. At the same time, it has a wider viewing angle and better viewing angle than the previous generation. Color reproduction and contrast. With the curved screen, it feels like the pixels are painted on the screen.

The resolution of the 5.5-inch iPhone 6 Plus reaches 1080p (1920*1080) level, and the screen ratio is 16:9, which is consistent with the iPhone 5s, so applications with unoptimized resolution can also be displayed perfectly. But there will be some emptiness. Given the strong appeal of the iOS platform, application adaptation is only a matter of time. ?[5]

Screen material The iPhone 6 Plus uses a glass front panel made of the same material as its predecessor, instead of the previously rumored sapphire glass screen that will not scratch at all. But the difference is that a 2.5D curved edge screen is used to match the body shape, which is different from the square shape of the previous generation product, but the impact is that the 2.5D screen has a certain curvature, so it is not easy to apply the film , which greatly affects its beauty.

Interaction

In terms of interaction, the 5.5-inch screen has many differences from the 4.7-inch screen, and has been improved for large screens. iPhone 6 Plus, such as desktop landscape mode, and built-in applications such as email, calendar, and settings, all have a multi-window interface in landscape mode, so that you can view detailed content while viewing the content list, taking full advantage of the large screen.

The iPhone 6 Plus also has a new feature called "reachability", which is used to complete one-handed operation of large-screen phones: double-touch the home button, and the main interface will lower from the top of the screen. Allows users to touch the top of the interface without using their hands. Overall, the iPhone 6 Plus is a bit like a smaller version of the iPad mini. ?[6]

The keyboard is therefore more powerful. There are many more buttons on both sides, and more symbols and option functions appear. There are symbols on the right side of the keyboard, and copy, paste, and cut appear on the left side. It is very convenient. practical. ?[5]

Camera

The camera of iPhone 6 Plus is equipped with OIS optical image stabilization technology, which can greatly improve the performance of low-light and night shooting. Optical image stabilization puts the entire camera module in a suspended state to compensate for shakes during shooting. ?[7]

The new 8-megapixel iSight camera, with a single pixel size of 1.5 microns. ?The iSight camera has a new sensor that enables fast autofocus with just a few pixels. This feature appears on many SLR cameras. With OIS optical image stabilization, the iPhone 6 Plus autofocus is very fast, and many random shots will not be blurry. The photo quality is better in low light. ?[8]

The front camera of iPhone 6 Plus has also been improved. The FaceTime HD camera has a new sensor and a larger f/2.2 aperture, which increases the amount of light it can capture by 80%. ?[7]

At the same time, the iPhone 6 Plus camera also has two killer features, namely Slow-Mo and Time-Lapse. The former uses a frame rate of 240fps to create slow motion, and the latter uses ?Like Hyperlapse launched by Instagram, it realizes time-lapse photography.

Judging from foreign media reviews, the iPhone 6 Plus is unanimously considered to be one of the better phones with better camera technology. ?[5]

Apple launches free camera replacement plan for iPhone 6?plus. Apple's official website stated that it has determined that there are components in some iPhone 6 Plus iSight cameras that may cause blurry photos for some reason. The serial numbers of the affected devices fall within a certain range, and they were basically sold between September 2014 and January 2015. Cameras can be replaced for free at all Apple stores, and users can check by entering the serial number on the official website.

?[9]

Processing equipment

iPhone 6 Plus uses the latest A8 chip. The computing and graphics processing capabilities of the PlusA8 chip are more powerful, 20% and 20% higher than the previous generation respectively. 50%; the latest A8 processor uses 20nm process technology, which can make the processor more power-saving and smaller than the previous generation A7 processor. Apple says the Apple A8 processor is 13 percent smaller than the A7. Thanks to its more powerful computing power and graphics processing capabilities, iPhone 6 Plus can run 3D games. ?[10]

The iPhone 6 Plus is equipped with the M8 motion co-processor, which allows the machine to receive mobile data from an accelerometer, a gyroscope, a compass and a new barometer, providing a barometric pressure index based on the altitude. . Apple said, "The M8 motion co-processor can continue to receive mobile data, even in sleep state, in the power saving state running fitness software, the phone is running sensors."?[8]

Apple Pay

iPhone 6 Plus Apple calls its payment system ApplePay.

The iPhone 6 Plus is equipped with an NFC chip. Using near field communication (NFC) technology and Apple’s Touch ID technology, users can easily complete payments.

According to the on-site display, Apple Pay mobile payment can use the credit card that has been bound to the Apple account, or you can add a new credit card by taking a photo.

Apple stated that it will not provide users’ credit card numbers and other information to merchants, and will use one-time payment numbers and dynamic passwords. At the same time, Apple does not keep user payment records.

Apple said it is stepping up cooperation and expects to officially launch the "Apple Pay" service in October this year. ?[10]

Battery Capacity

The iPhone 6 Plus battery is rated at 3.82 volts and 11.1 watt hours of energy, measuring 2915 mAh - compared to the iPhone The 5s (1560 mAh) has nearly double the capacity, and is also slightly more than the Galaxy S5’s 2880 mAh capacity. With a larger battery capacity and improved power efficiency, Apple claims up to 24 hours of talk time and 384 hours of standby time on 3G.