[Tutorial] How To Solve iTunes 45054 Error During Application Update

When using iTunes, we often can see some of the pop-up error code and most of the time we can’t use the application if there is an error code, especially in the case of iPhone recovery backup. Although relatively rare, one of these error codes is the 45054 which appear after an application update. In this tutorial, we will look at how to solve this problem.

The iTunes 45054 error problem solution is very simple.

  1. Access the terminal.

2. Type “cd / Applications /” in the application directory.

3. Type “sudo rm-rf iTunes.app/” to delete iTunes, then enter the password to confirm the deletion.

4, Go to the iTunes official website to download the latest version of the application.

5. The 45054 error is now solved.

Differences Between Apple Charger And Fake Charger

The Apple iPad sells its charger for $19. However, you can easily purchase the similarly looking charger from online stores for around $3. From the outside, both chargers are very similar. This article will look at the original and imitation chargers to show that the original has much better quality and most importantly safer to use.

External differences between the original and fake charger

When viewed from the outside, the original device on the left and the imitation on the right are very similar. Looking closer at the label, the differences between the two are more apparent. The fake device does not have the words “Designed by Apple in California, Assembled in China” and the manufacturer name “Foxlink” which means “Apple California design, manufactured in China.” The reason for this is probably to escape from legal obligations. However, interestingly, TM and © 2010 Apple Inc. are still in print. The fake device also has many certificate signs like UL, but none of them are real. As you can see in the pictures below, it is not possible to pass security tests.

How the Apple charger and fake charger looks on the inside?

When both chargers are opened, the big difference between them is more noticeable. The original device is full of stuff and barely fit the case. The fake charger on the right contains fewer pieces than the original, and there is more space in it. More expensive and quality components especially capacitors and transformers are used in the Apple charge. As you will see below, these parts make a difference in the quality of the tension coming from the power supply and regarding safety.Something about security is very clear: the isolation of the Apple charge is much better. The high-voltage on top is covered with a yellow insulated tape. Some parts are wrapped with tapered rubber, some insulators between the plastic parts, and some cables have extra insulation. On the other hand, insulation in the imitation device is minimal.

The workmanship and quality of the Apple charger are much higher. Some parts of the fake device are skewed and sloppy. Although this does not affect the performance of the electrical circuit, it indicates that the workmanship is bad.

Looking at the bottom of the circuit boards, it turns out that the Apple charge is much more complicated. There is virtually no space on the Apple circuit board, with tiny pieces of surface mounted (SMT-YMT) on each side. There are only a few components on the dummy device, and more space is available. The red insulating tape on the original device is a protection from an electrical surge.

How Do Apple Charger and Fake Charger Work?

Both the original and fake chargers have similar flyback switching-mode power supply (SMPS) circuit. Switched-mode power supplies are the circuit technology that allows these chargers to be made so small. The fundamental principle of a switched power supply is to open and close the circuit thousands of times at a time. Another advantage of this circuit is the power lost in the heat is kept at the minimum. The high frequency used also allows the transformer to be downsized and to be much smaller than 50/60 Hz heavy transformers.

The Fake Charger

For the imitation charger, the AC voltage is switched on with the white wires on the upper left. Then the current will pass through a fusible resistor, which also serves as a fuse. The bridge rectifier underneath it is turned from AC to DC. The voltage there is between 170-340V (110 or 220V supply voltage). The input capacitor is purifying the rectified voltage through fluctuation. The 4-legged control integration (IC) monitors the output of the charger and switches the switching transistor on and off 41,000 times a second. This DC voltage is applied to the primary coil of the flyback transformer. The transformer will reduce the voltage to the desired 5V. The output capacitor will then smoothen the voltage. Finally, the output voltage is pushed into the USB connector to charge the iPad. Apart from these, there are also several attachments. A feedback winding in the transformer is feeding back control voltage to the control IC. This winding also provides the supply of the IC, and the small capacitor on it (DC power capacitor) corrects DC for integration. Finally, a snubber capacitor turns off voltage spikes that occur at the transistor tip.

The Apple Charger

The original iPad charge shown above works with similar principles. However, the electronic circuit is more complex. The power goes to the AC input in the bottom right. It then passes through a 2-ampere insulator (black insulated for safety). There are far more filters in the primer than the imitation charger; Filter bobbin (common mode shock bobbin), coil and two large electrolytic capacitors. Although they increase the cost, they enhance the quality of the output voltage. On the output side (left) there are two filter capacitors. One of these is a high-quality aluminum polymer capacitor (which looks like pink/purple). Y capacitors help reduce noise. The tiny NTC temperature sensor also turns off the device if the charger overheats.

On the other side of the circuits, the Apple charger is much more complicated than the other. Starting from the AC input on the top right, the charger has extra input filters and spark gap intervals. The restart circuit, allows the charger to reset if there is a fault. The control integration allows full control of the charger under variable conditions. The internal structure of this integration is much more complex than the control integration of the imitation device. The current sense resistor allows the integrated circuit to high-temperature the current through the transformer. Line voltage resistors also detect the input voltage of the integrator (they also provide the power needed to integrate at the first power-up). The protection circuitry uses the temperature sensor on the other side of the board to turn off the device in the event of overvoltage or high-temperature conditions.

The secondary side also includes some features that will improve the output voltage. The Y-cap filter (Y-cap filter) reduces noise in the circuit using Y capacitors. The output filter at the output (output filter) is much more complicated than the Fake one. Also, note that the original charger is grounded. There is only a plastic protrusion in the imitation device instead of this.

Both chargers use Apple’s proprietary system, USB data resistors, and certain voltages on USB data lines to clarify the type of the iPad. On chargers that do not do this correctly, iPad gives the error “Charging is not supported with this accessory.” Thanks to these resistances, the original device says it is an Apple device of 2A, while the fake one sends the information that it is an Apple 1A charger. The imitation is packaged in a 10W package, but it has a 5W charger.

Safety Features Of Apple Charger And Fake Charger

When you plug a phone into your charger, you take for granted the safety features of the charger. However, it is the most important feature for these devices. The voltage in the charger can reach up to 340 volts. If things go wrong, the charger can burn, hurt and even kill you. That is why these chargers and similar devices have gone through very stringent safety standards if you have a reliable manufacturer. These security measures are neglected in counterfeit goods that you buy cheaply. Although the security risks are not noticeable from the outside, you start to see the hazards when you open the inside of the device.

Safety clearance

UL guidelines require high voltage and low voltage to be separated from one another at a safe distance. A certain distance is needed for the creepage, and a certain distance is needed through the air. The rules are quite extensive and complex, but in summary, they must be at least 4 mm between the high and low voltage area.

The iPad charger has a safe distance and jumping clearance. The high voltage section is at the top; the low voltage section is at the bottom.

The photo above shows how the original iPad charger distinguishes between the high voltage (bottom) and low voltage (top). The smiley face symbol on the right points to the safe gap between the primary and the secondary (this is deliberately left blank, even though the backrest is full of electronics). This 5.6 mm clearance provides an excellent security area. The smiley face symbol on the left also points to a low and high voltage area separating the high voltage fields.

The image above shows how an insulated sleeve is placed on the cover and how the USB connector is protected. Also, several layers of protection are provided with a red-brown band around it and a yellow band covering the entire high-voltage section.

The surface leakage distance seen on the fake charger on top is frightening with only 0.6 mm between high and low voltage. Just below the sad face symbol, the low-voltage area is close to the high-voltage part almost touching each other. (The lines on the right indicate millimeters.) The left side has proper clearance, the smiley face there points to an apparent gap under the transformer, and there is no safety problem. But in general terms, this device is not secure. If you charge this charger in a damp place and the water concentrates in this 0.6 mm section, the result can be disastrous!

Safety Features of Transformers

For safety reasons, the parts of the charger that contain high voltage and low voltage must be electrically isolated. However, the electric current also has to pass in some way. The flyback transformer uses magnetic fields to transmit power without direct connection. Since the transformer is the largest and most expensive part of a charger, counterfeit manufacturers compromise safety and quality for extra profit. On the photo above, the original transformer (left) is quite large compared to the imitation one (right). The size difference could be a clue that the original charger is of better quality and power efficiency.

The primary safety requirement of a transformer is to separate the high voltage primary circuit and the low-voltage secondary circuit. The fake device is failing here. The image above show the transformers after the primary windings, and the insulating tape has been removed. The secondary coil is visible. At first glance, the wires look similar, but there are significant differences. The original charger (left) has a triple insulator, while the imitation (right) is only insulated by a thin varnish on the wire. The triple insulated wire is a crucial safety measure. Even if there is a leak in the insulating tape or the wire harness, the high voltage can still be isolated. Also, pay attention to the black and white insulation of the wires from the transformer. The only thing separating the high tension from the secondary winding in the imitation charger is the insulating tape.

Comparison Of Power Output And Quality Of Original And Fake iPad Chargers

In the previous articles, the original Apple iPad charger has been thoroughly compared with a fake one. In this article, another characteristic of the two chargers will be analyzed. An important but unseen quality of chargers that should be considered is the power output and the voltage quality. When the outputs of the chargers are measured in the laboratory, the fake device has two main problems. First, the simulated device can only deliver 5.9W instead of 10W as stated on the label. Second, the output voltage of the imitation has a lot of noise and full of spikes.

The voltage-current graphs above show how the iPad charger (on the left) and the imitation charger (on the right) perform with increasing load. The graph of the original charger goes farther to the right, indicating that it can deliver much more current. According to the measurements, the original charger’s power output can reach up to 10.1 Watt and the counterfeit up to 5.9 Watt. This power difference means that the original charger charges the iPad twice as fast. The other thing to note is the Apple charger’s frequency spectrum is smooth and thin, and the fake one is spread out. This graph means that the output of the counterfeit device has a lot of noise and poor quality.

The other pair of graphs gives an idea of the quality of the power output. The lower limit of the yellow spectrum of the fake device is also wavy, which is due to the 100 Hz (120Hz) ripple voltage coming from the network.

The orange chart also shows the frequency spectrum of the output. The lower, the better. The rise also indicates the voltage quality is exponentially worsening. The fake device’s frequency range is usually higher, and there is also a dangerous jump around the switching frequency. This data indicates that the power output of the counterfeit device is worse over the entire frequency spectrum.

So, does the quality of the power output matter? Poor quality output affects most touchscreen functions. Attempts from a bad power supply cause the screen to run erratically. If you have problems with the screen when you plug in the charger, it is probably the charger itself. Poor power quality can also damage electronic devices in the long run. That is why it is not recommended to charge iPad and iPhones using counterfeit chargers because their quality is highly questionable. Apple went through the trouble of designing more complicated charger so that their chargers can produce stable and better quality power output.

Internal Structure Of An iPad Charger

There is more than you expect in a transformer. In this section, the transformer of the genuine charger will be completely disassembled and examined.

The first picture above shows the first layer underneath the yellow insulation band. The ferrite is surrounded by a copper ribbon to ground the core. When you remove the ferrite core, other insulations also appear; which is the double-insulated primary winding. The input voltage goes to this winding.

When you remove the primary bandage and a few more insulation bands, you can see the three-wire feedback band. This winding provides both feedback and supply voltage to the control integration. In the photo, this winding is seen as being opened around the transformer. After removing some of the insulation band again, the secondary winding begins to appear. As mentioned earlier, the secondary winding is triple insulated, and there is also extra insulation at the output points of the transformer. The final insulation layer (pictured on the right) contains a copper foil. This copper reduces high-frequency interference.

Finally, the bottom of the Flyback transformer of the iPad charge (top). Here is the other half of the primer. Primer winding is a much more expensive way to do in two layers, but with a much better matching of magnetic fields, hence a much better transformer.

On the other hand, the quality of the fake transformer is much worse. There is a feedback coil, a secondary winding, and a primary coil separated by an insulating tape. Copper foil was not used in the transformer of the fake device to save production cost. The manufacturer does not use more expensive multi-wire straps that are available in the original. As mentioned above, the secondary windings are not wrapped with triple insulated wire, but only with copper wire. This build is a severe security issue, of course.

What are the differences between iPad charger and iPhone charger?

The iPad charger is considerably larger but has double the power than the iPhone charger.  The iPhone charger (below) contains two circuit boards in just one inch-cubic volume, which is an impressive engineering achievement. Both iPhone and iPad chargers include a Flyback switched-mode power supply circuit, but the feedback mechanisms are different. The iPhone charger is more impressive when it comes to design because a similar circuit is fitted in a much smaller volume.

 Final Thought

Apple’s charger, when compared with others, is expensive, but the price is matched with a quality product. You should never use fake chargers because they have low quality and dangerous to use. There are good quality chargers though from third-party manufacturers, and some are even better than Apple’s. Another cheaper option to save some money without sacrificing quality and safety is to buy genuine used charger online.

Apple’s profit margins on such devices are very high. Even though they dropped the price from $29 to $19 for download, the price is relatively high compared to high-quality chargers from other reputable brands. Regardless, the iPad charger is an impressive engineering work and an interesting circuit design. In fact, the fake charger is also very impressive to its right. It’s difficult to understand how they can produce a fake iPad charger and sell it at such a low price. In the end, the result is almost always you get what you pay for. Although the two chargers are very similar from the outside, the interior appearance and quality are very different.

Google drive launches with 5 gb of free cloud storage space

Google Drive on the line to do with a big brand halo, the first register to have a free 5GB cloud storage.

Fruit powder with Mac systems often will be used in network hard drive application. DropBox is generally used but now we have another choice and is developed by Google, called Google Drive. The Service Tag Clouds Google Drive, have 5GB free space when we first use.

So what can be done with Google Drive? It is one that will allow us to create, share, save a file platform. Meanwhile, another advantage is cooperation platform, such as when teamwork and projects, we can also be achieved through Google Drive, this fact is somewhat similar to SkyDrive Windows platforms. In the file format, some documents, video, audio, pictures, etc. can upload files up.

Because of the cloud services, we can easily extract files and use it on multiple platforms such as Windows, Mac OS, iOS, Android and so on. Again because it is Google’s own products, Google Docs is also integrated well. Editing directly can be done online and automatic saving.


Apple emails developers to try and learn more about the developer id and gatekeeper

The email received today from Apple Developer is all about Developer ID and Gate Keeper. What is Gate Keeper? This is a new feature from the Mac OS Mountain Lion. In a simple point, the GateKeeper is what we download, those applications outside of the Mac App Store when a line of defense for preventing users from installing some malware.

After downloading the application, you can do go through the GateKeeper Sign procedure, then determines whether a malicious application can be reviewed by GateKeeper. GateKeeper will be a Lion system default, we can now view the iPhone App Store if there are many malicious App, and signed by Apple’s own review mechanism. Even if you are not in the Mac App Store published applications, you need to go through Apple’s approval. Although this appears to be relatively tougher, but this is for the protection and interests of Mac users.

iDrops solution clean polish from your apple product

iDrops: a small bottle of magic liquid that can help you have the full range of Apple products, screen cleaning, polishing, removing scratches.

After the return of the site traffic, here once again, introducing an interesting Apple peripheral products, this is not a case, bag, etc.. It is an Apple product screen cleaning products. This product is called iDrops. Each a small drop can help us to clean, the small screen makes the clean up.

This can help us cleaning, polishing, removing scratches and even products. The product supports the full range of Apple products such as Macbook, iPhone, iPod Touch, iPod Nano and so on.

Product description:

Apple products help you recover gadget’s health

The cleaning products can reproduce the shine and health of the new product screen, polycarbonate, acrylic esters of these two important ingredients may be back among our Apple products.

All in one

Cleaning, polishing, protection, removal of scratches are iDrops can be done, and only need a few drops to a dry cloth.

For your good photo output

When it comes to health, iDrops not just to your iPod, iPhone or iPad back to health, and, unlike other products is, iDrops screen is a non-toxic solution, no harmful chemicals, smoke, pungent odor .

Just one step

iDrops merely designed as a bottle of works, so that you can be in addition to a bottle of scratches and blemishes screen, and a simple one-step process.

Let us look at the official renderings of it. It reminds me of plastic surgery before and after plastic surgery.

This product is currently priced at $ 14.95, you can go to its official online shop to buy.

iOS 6 will provide its own map function with 3d map

Next-generation operating system iOS 6.0 iOS device will be powered by Apple’s own map products, and add 3D maps feature.

In these past two years, there have been rumors that Apple wants to own their own map function, perhaps this feature of iOS 6 is out this summer. According to foreign media BGR reports, iOS 6 will be built-in Apple’s own map application. If we now look at the interface of iOS 5 map application, you can see the top and bottom of the application are gray and blue, which in iOS 6 maps application interface will become silver, that is, and now iPad the system applications like interface.

Again, iOS 6 maps on the iPhone’s performance and exhibition feel like Android map interface. The difference is that the user can press a button to achieve the 3D map results. Speaking of Apple’s 3D maps, we can start with the acquisition of C3 Technologies from it. C3 Technologies is a 3D mapping technology company, and the original C3 Technologies company CEO – Mattias Astrom, CFO – Kjell Cederstrand, product business executives – Ludvig Emgard have joined the Apple iOS department. This acquisition moves have widely rumored that Apple wants to feel a perfect mapping solution rather than rely on Google Maps.

To open the 3D function in iOS 6, you need to peel the bottom right corner of the map application. The 3D maps feature is currently being tested (test firmware iOS 6, build no. 10A3XX).

iTunes match starts in Italy Portugal, Greece, Slovenia, Austria

Apple’s music slowly began matching service and this can be used in many countries today, Apple’s iTunes Open iTunes Match again in five more countries, including Italy, Portugal, Greece, Slovenia, Austria. Now, users that are currently living in these countries have to directly login through iCloud account to open this service.

iTunes Match service in this new country which, we also see a change in the terms of iTunes Match, and the newly added countries just mentioned the new terms, new messages through the site.

[Tutorial] Do You Think that Yahoo! Weather Looks Good? Turn It Into Your Default Weather Application

After Yahoo launched its new products on the iOS platform, Yahoo! Weather seems to be one of the most recommended weather applications. Why is Yahoo! Weather so popular among iPhone users? Many people will first mention that it is the amount and accuracy of information in Yahoo! Weather. In addition to providing five days of weather forecast, the temperature given by the weather application is accurate to the hour. Other data like humidity, wind direction and wind strength, sunrise and sunset time, and so on are collected in Yahoo! Weather applications.
That is why some people would like to ask if you can use Yahoo! Weather as a direct replacement for the default weather application. This article will share a more ingenious and straightforward way to use Yahoo! Weather.

Required content or conditions:

1. Jailbroken iPhone
2. Installed Yahoo! Weather;
3. Cydia plugin OpenOther (free plugin);


1. Ensure that the iPhone was jailbroken, and the Yahoo! Weather was installed.

2. Open Cydia, search for OpenOther then install the application. You can use the free version.

3. Go to Settings, then OpenOther interface;
4. Open the OpenOther function. Type “com.apple.weather” on App to redirect and “com.yahoo.weather” on Redirect field.

5. You have successfully changed the default weather application to Yahoo! Weather. The Notification Center and the weather icon will now display the Yahoo! Weather.

[Tutorial] How To Enable Numeric Signal Strength On Your iPhone

If we now look at the upper left corner of the iPhone screen, you will see the signal strength is shown as 5 cell display signal bar, in fact, we can also display it as a digital form of signal strength which can also be more intuitive.

Let’s take a look at how to easily change it:

1, Open the dial-up interface, enter * 3001 # 12345 # *, and then press the call button.

2, You have now entered the Field Test interface. At this point we see that the network operator’s signal bar has become a digital display, but if we press the HOME button, the number will change back to the bar, so we have to follow the following steps to continue.

3, Hold down the POWER button until the “slide to power off” prompt appear.
4, Release the POWER button, hold down the HOME button (until the screen is back to the SpringBoard).
5, The signal strength is now shown as a digital display.

Here’s what the signal strength number means in case you are wondering:

-50dBm: the signal is very good

-50dBm ~ -100dBm: good signal

-110dBm: the signal is very weak or no signal

[Tutorial] How To Change Carrier Logo Without Jailbreaking Your iPhone

Under normal circumstances, if you want to change the operator icon, you probably think that a jailbreak is the only way it can be modified. However, there is a way to get rid of the original carrier icon and replace it with your own custom icon. CarrierEditor is an application that can do the job. You can use it to create a new carrier profile that you can import on your iPhone. The following are the steps to change your carrier icon.

Required content or tools:

1. CarrierEditor, here is the download link for Mac.
1. Drag the CarrierEditor into the Applications directory.

2. Enter the main interface of CarrierEditor, then click “Let’s Get Started.”

3. CarrierEditor prompts to enter the carrier version number, the information can be found on your iPhone. Follow the steps below. In my iPhone, the version number is 13.0.

4. In the Carrier Information page, we need to select the equipment and operators used.  In my iPhone, I am using China Unicom. If you are using a different carrier, click on the dropdown to choose from the list of carriers.

5. In the Customization page, drag the image that you want to be your network icon.

6. CarrierEditor shows Complete, then close the CarrierEditor application.

7. We can now see on the desktop the generated operator profile.

8. Open iTunes, and enter the iPhone management interface.

9. Hold down Option + to restore iPhone.

10, select the newly generated configuration file Unicom_cn_v13.1.ipcc. (If you want to return to the initial operator words, we can choose Unicom_cn_original.ipcc import)

11. Restart the iPhone, the custom carrier will now appear instead of your carrier logo.