Tuesday 10 July, 2018 | RSS Feed

Guide: How to Test and Repair iPhone Display Screen

In this article, we will analyze and repair the iPhone mobile display screen. Which iPhone display screen repair tools do you need to use? We start with the oldest models, and iPhone 4S keeps many of the same design elements and devices as iPhone 4. One of the important places that remains unchanged is the display and touchscreen parts. Other basically unchanged components include WiFi, bluetooth and frequency modulation (FM) module.





There is a glass panel on the iPhone display. Therefore, it is necessary to distinguish whether the LCD or glass panel is damaged. IPhone the display components of different operators are also different, that is, a CDMA iPhone display component is incompatible with GSM iPhone display components, and vice versa. IPhone mobile displays with different capacities under the same type can be compatible. For example, the operator's CD-MA 32G iPhone 4 display can be compatible with CDMA's 16G iPhone 4, CDMA 8G iPhone 4. In addition, iPhone screens of different generations can not be replaced.

• How to test iPhone touch screen?

The inspection method of the touch screen is as follows:

1) first, the Digital Multimeter is used to measure the four pins of the touch screen. There are two sets of resistors, the touch screen is pressed with hand, the electrical resistance should change, if there is no change on resistance value, it means the touch screen has been damaged.

2) retest the resistance of the four pins of the motherboard, and whether the two pins of the X+ and Y+ are powered by the boot. If there is no resistance, then it may be broken. If there is no voltage, it is possible to control IC damage or leakage or short circuit of the resistance capacitor.

3) measure and control whether IC has power supply. If not, check the power supply. If there is, you may need to check CPU and software.

• How to install iPhone touch screen?

Some notices for installing the touch screen are as follows:

1) pay attention to the problem of static electricity. The touch screen needs to be provided with an Anti Static Wrist to prevent electrostatic damage.

2) it is best to wear a finger sleeve when installing, so as to avoid sweat stains and grease pollution connectors on fingers.



3) when installing the connector, it must be parallel to the parent card and press evenly.

4) when removed, attention should be paid to parallel pull up and not to be buckled from one side.

5) touch screens need to be handled gently, preferably with two fingers pinching on both sides.

6) when touching the screen to tear off the protective film, be careful not to pollute the surface and the other side of the screen. The protective film is sticky. Do not contact directly with your fingers.

7) generation of touch screen assembly must be installed under shutdown, not in the lock machine assembly, so as not to appear white screen, screen flash, etc.

8) The touch screen can wipe the connector with a little high purity alcohol with Phone Repair Dust-free Cloth.

Get more technical support from www.vipfixphone.com. You can contact China Phonefix Shop Team for help!


by CNFIXPHONE




How To Repair iPhone 6S Home Button

The home button is the only button on the iPhone. It is the most frequently used button on the iPhone, and it is also the most vulnerable button. In addition to unlocking, double-clicking out the multitasking panel, there are some very useful features in the iPhone phone's home button. However, the iPhone's Home button is used more often, and often encounters a malfunction. Recently many users of iPhone 6sd have reported that their home button has failed. What caused the iPhone home key to fail? How to fix it? In this article, our phonefix shop team will tell you the answer!




 

iPhone home button is not working reason

1. The use time is too long

We all know that the Home button is the most used button on the iPhone, and of course the most prone to problems. If you use it for too long, it is very likely that the home button will fail.

2. Home button shrapnel deformation

Disassemble the iPhone with the home button failed.It was found that there was no support under the metal piece, and there was some deformation, and the shrapnel on the screen was slightly deformed. Poor contact between the cable and the screen naturally fails.
 


iPhone home button  repair

 

1. Open any app and press and hold the power switch for a few seconds until the screen shows a step to slide off. Release the power button but do not slide it off. Press the Home button for a few seconds until the screen returns to the desktop. This has already re-adjusted the Home button in the system and can be used normally as before.

 

2. Turn on AssistiveTouch instead of Home button

Open the main interface and enter the "Settings" option.

After entering the setup options, the option "general" is used and then turned on.

Then go to "Accessibility".

At the bottom of the screen you will see an AssistiveTouch option and then select Open.

Then when you return to the main interface, you will find a square shadow on the screen. This is the AssistiveTouch function. You can use it instead of the home button.
 

Cleaning with alcohol

In some cases, and especially where iPhones are used in dusty or dirty environments, the Home button can become less sensitive to touch.To clean it properly, use alcohol and a cotton swab. Place a few drops of alcohol directly on the Home button and push it down with a cotton swab. Wait a few minutes, then check if the problem is solved.

 


 

Disassemble repair
 

First remove the two screws on the bottom with the prepared pentagonal screwdriver. Then use the suction cup to assist in disassembling the screen. It should be noted that there is adhesive fixing around the edge of the screen, which is first heated and softened. You can use a hot air gun to assist.
 

After softening, use a suction cup to make a gap, insert the cymbal into it and carefully open it around. It should be noted that if the rubber is hardened, it is heated and softened with a heat gun and then disassembled.
 

When the screen can be opened, it indicates that the adhesive has been removed. Carefully open the screen and you can see that the screen cable is attached to the motherboard with a metal bracket. And the metal cable holder is also fixed on the battery cable holder, so remove the metal bracket to disconnect the power supply.

 

After removing the screws, remove the metal bracket with tweezers and use a pry bar to pry open the power cable clamp. Since the battery is not very well taken out, the screen is also removed here. After the screws are removed, the metal brackets are removed with tweezers.



After removing the screen, we can see that the Home button is also fixed by the metal bracket, and the metal bracket is fixed by three screws. Remove the three screws and remove the metal bracket with tweezers. After removing the fixing bracket, carefully disconnect the home button cable and the card on the screen with a pry opening tool. Then carefully pull out the home button.
 

Remove the bad Home button and replace it with a new iPhone Home button, then attach a glue to the original cable to secure the cable.Use a pry  opening tool to press it from above to make it more stable. Finally, install the metal fixing bracket, screws, screen cable, battery and start the test. If there is no problem, start to install the iPhone.
 

Are you interested in our article? If you would like to know the professional tools needed for the repair process, please contact us on www.vipfixphone.com.
 


by VIPFIXPHONE




How to diagnostic iPhone update failure by yourself

As we all know the fact, it is necessary to keep your device up to date, but if you face this issue of my iPhone won't update, you may have to analysis the problem by yourself, even try to identify the reasons behind such a glitch. But it is important to do, so in order to adopt the best App or other functions, there is no doubt that latest iOS version will be compatible with the latest software, but once there happens some faults on updating, it will be emergency, becasue it may be related with inside problem. But don't worry, here our Phonefix team will guide you how to deal this.


Given below are various issues which may prevent your iPhone from updating smoothly. Read them carefully so that you can relate to any one of them, refer to their corresponding remedy in the following segments the next time you think about why won't my iPhone update.

 

According to our repair experiences, we list for you some common and obvious sources faults:

 

-If there is not enough storage space on your iPhone, the update will not install for want of space to carry out its operations.

 

-An unstable internet connection can also prevent the update from downloading in one go.

 

-Many-a-times software update server cannot be contacted. This happens when Apple servers are unable to process multiple update requests at the same time.

 

-Lastly, an existing software glitch/crash can prevent the new update from downloading and installing normally.

 

Now that you a know a little about the why iPhone won't update, let us move on to troubleshooting the problem.

 

1 Restart your iPhone forcefully

 

It is ususal for many phone issues to solve problems by restarting, but actually, it also tends to cure all types of minor iOS issues, next continued the steps.

 

First, press the Power On/Off Button along with the phone Home Button. Hold these two buttons for at least 10 seconds whenever iPhone won't update normally. The iPhone screen will turn off and then light up again to display the Apple Logo.

 

Now leave both the keys and let your iPhone reboot all the way to the Lock Screen. Unlock your device and try updating it by using one of the two ways listed in the following segments.

 

2 Leave enough space iPhone update

 

It is important to make enough space on your iPhone by clearing off and deleting unnecessary and unwanted data stored in it if iPhone won't update. All iOS variants need some space in the iDevice’s internal memory to install itself and function normally.

 

3 Fix it by restoring in recovery mode

 

Don't forget the DFU mode, meanwhile keep your phone's iTunes version been installed, then you will do the next:

 

Boot it when your iPhone won't update in recovery Mode. If you are using an iPhone 7, Power on/off and volume down button will do the trick for you. For all other iPhone devices, press the Home and Power button simultaneously and release the Power button only when the screen lights up. Release all keys once you see a screen similar to the one shown below.

 

After that, you phone will be resoted and you can update it easily, but do not forget to backup your device before restoring it. 

 

All of us are aware that it is important to update an iPhone to fix bugs or other issues, to adapt the latest function. Once you meet this problem in the future, do not forget to use the above-mentioned methods.

 

If you have any more good idea, pleas contact us on www.vipfixphone.com.


by CNFIXPHONE





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