December 6, 2019 by keikeilaiy
According to foreign media reports, Apple just announced a notice to recall the product. The recalled product is not a MacBook with keyboard and display cable problems, but a wall plug adapter designed for the Hong Kong, Singapore and UK markets in China, which is our common triangular plug adapter. A reliable Bluetooth earphone wholesales china manufacturer.
Apple said that they have received six problem reports so far, and users have received electric shocks when using these old adapters. For this reason, the company is recalling these adapters so that they can be replaced immediately.
The “three-plug” wall socket adapters that need to be recalled use thick metal inserts. In contrast, the "three-plug" adapter on the US market has two thinner blades and a round grounding plug. It is reported that from 2003 to 2010, Apple equipped this adapter for Mac and some iOS devices.
Apple said the recall will not affect any of its USB power adapters.
Starting today, customers can replace the affected old adapter with a new one from the official Apple page. Returns and replacements are voluntary and not mandatory. However, for security reasons, the company asked users to stop using the old adapter.
It is understood that this is Apple's second recall of wall plug-in adapters in recent years. In early 2016, Apple recalled four different dual-tube adapters for similar failures. These adapters are available for continental Europe, Australia, New Zealand, Korea, Argentina and Brazil.
September 4, 2019 by keikeilaiy
The usb data line is an important device for transmitting digital signals and currents. For the usb data line, this function USB data cable wholesaler will take you to know.
1, stable ability to transmit data signals
At present, under the influence of various interference factors existing in the surrounding environment, the external interference signals may enter the inner conductor of the data line to affect the corresponding data transmission effect, so the current high-quality assured usb data line customization In addition, it is more necessary to meet the stability of its data transmission function. From the current usb data line customization, what brand analysis can be found, high-quality usb data line customization mechanism can achieve a variety of shield layer integrated design based on this good design effect, through this level of design to achieve comprehensive control to avoid external signals Interference factors to ensure the efficiency of data transmission and the stability of signal communication.
2, the efficiency of current transmission
It is reported that in daily applications, the data line also needs to bear certain current transmission and charging functions, and the mobile phone's continuously improving high-efficiency charging capability and flash charging function requirements require China's high-quality and reliable USB data cable to provide stable current transmission. . At present, the high-quality and reliable usb data line customization mechanism adopts continuous adjustment of current and continuous testing of its current production scheme, so that its usb data line customized products have more efficient current circulation capability.
August 20, 2019 by keikeilaiy
As smart devices occupy an increasingly important position in people's lives, with the gradual increase in functions, the problem of power consumption of devices is gradually exposed, and people are becoming more and more accustomed to carrying power adapters, that is, People often say the charger. What is the difference between this power adapter and the regulator?
It was found that the voltage of the power adapter was higher than the value he marked without load, and the regulator always had this value. So what is the difference between the two?
The difference between power adapter and voltage regulator
1. The power adapter is a power supply conversion device for small portable electronic devices and electronic appliances. It is generally composed of a casing, a power transformer and a rectifier circuit. According to its output type, it can be divided into an AC output type and a DC output type. Straightforward can be understood as a voltage converter, such as converting a 110-220 volt AC voltage into a fixed DC voltage.
2. The regulator is a device that stabilizes the output voltage. The regulator has a constant voltage, a control circuit, and a servo motor. When the input voltage or load changes, the control circuit samples, compares, and amplifies, and then drives the servo motor to rotate, so that the position of the carbon brush of the regulator changes, and the output voltage is kept stable by automatically adjusting the turns ratio of the coil.
The power adapter is higher in voltage without load. If you pick up the load, it will find that its voltage will drop. This is because of its own limitation, just to provide a suitable voltage to the load. The main function of the regulator is to regulate the voltage. It will stabilize the voltage passing through it to a certain extent. If it exceeds or lowers this value, it will have an action. The power adapter does not have this effect. These two can be distinguished according to the use situation. If the load power supply requirements are not high, they can be used interchangeably. However, if the load requires a high power supply, even if the voltage of 1V does not change, then the regulator must be used. Otherwise, you should burn the power without burning the load.
August 14, 2019 by keikeilaiy
Apple is taking new steps in the iOS system to prevent third-party replacement of iPhone batteries. Apple has activated a "sleep software lock" in iOS. When the iPhone uses a battery that is not installed by Apple itself, it will block the battery health and other functions in the settings. In other words, if the user or the non-Apple authorized third party to replace the battery task, the settings application will display a "service" information: can not verify whether the iPhone uses the original Apple battery. This battery has no health information.
The core technology is derived from the microcontroller of the battery itself, manufactured by Texas Instruments, which includes an authentication function that pops up a “service warning” if the authentication key provided by the battery does not match the iPhone. Apple and its partners are the only companies that can clear this information. This new software lock exists in both iOS 12 and iOS 13, and iPhone XR, iPhone XS and iPhone XS Max are all in control.
This is actually a soft tip message that won't cause the iPhone to be unusable, but will make it a detail feature that does. Regardless of whether the battery itself is original or not, this message will appear if it is not a battery that Apple or Apple authorized to repair the dealer.
Previously, Apple had been squandered by users because it did not allow third-party replacement batteries, but the fundamental reason why they would rather be killed is battery safety. The serious consequences of the Samsung Note7 spontaneous combustion incident have caused the battery to become an area of close attention to all mobile phone manufacturers, and no one dares to relax. Only your own battery, and your own approved installation channels can minimize the chance of accidents.
August 6, 2019 by keikeilaiy
With the continuous development of the mobile phone industry, there are more mobile phone brands and more and more sales. There are also different quality data cables on the market, and various types of interface data cables are available to make you dazzled. Data cable wholesale factory teaches you how to buy high quality data cables
Preferred classification of known data cables:
From the interface to divide: COM interface and USB interface
1, COM interface is also called serial port, is connected behind the desktop computer, is currently being eliminated. The advantage is that the price is low, and the brush machine is supported (some mobile phones can only use the serial cable to brush the machine); the disadvantage is that the removal is extremely inconvenient, does not support the notebook computer, and the transmission speed is relatively slow.
2, USB interface is the current mainstream, the advantages are convenient and fast and stable, support all types of computers; the disadvantage is that the price of the IC is slightly higher, and some of the data cables do not support the brush function.
Today, Jianghan electronic data cable manufacturers explain how to buy high-quality data cables:
1, we first check the quality of the shape from the shape, first look at the surface of the injection interface, its quality can be seen in the molding compound, if the surface looks uneven and deformed, there is a crack surface is not bright and very dark The data cables are relatively poor. The surface of the good quality data line looks very beautiful. There is no print, the surface is shiny, and the quality is good.
2, look at the metal head is not rust, the socket is not deformed, there is no overflow in the interface, or it will damage your charger.
3, is the quality of the cable depends on the surface printing is not clear, the surface of the wire is rough and the grain sand is relatively poor wire, and then can also swing 180 ° up and down dozens of times to see if there is any break, usually A good quality data cable is so swayed dozens of times that there are no scars.
4, if conditions permit, you can also try to charge your mobile phone to see if you can charge, and then touch the cable during the charging process will not be hot and hot.
July 2, 2019 by keikeilaiy
Speaking of mobile phone chargers, I believe that everyone will not be unfamiliar. The mobile phones we use every day need to be charged. Since we need to charge, we need our chargers. Many of the devices now require chargers, not just Mobile phones, such as computers and so on. Therefore, if the charger is used, it is mainly to see which aspect of the mobile phone charger wholesale factory is made. For the charger of the mobile phone, its internal electronic components use a lot of patches, and can also be used for automatic soldering, and Inspection and repair.
However, if it is a charger such as an electric car, there are many common internal components, and there are many large components inside. We can use machine plug-ins and manual installation. Because of the different battery products, it requires different methods to continue charging, so you must remember to charge according to the product instructions. The initial nickel-metal hydride battery was similar to activation. Because the battery will generate memory, if it is charged under the condition of not completely discharging, it is easy to make the battery excessively full, so that after a long time, the user will feel that the power of the mobile phone is quickly used. It’s over. However, most of the batteries used in current notebook computers, mobile phones, etc. are lithium-ion batteries. So its initialization is done at the time of manufacture. The advantage is that you don't need to activate it when you start using it.
June 14, 2019 by keikeilaiy
1, good safety performance
The polymer lithium battery is made of aluminum plastic flexible packaging, which is different from the metal outer casing of the liquid battery. Once the safety hazard occurs, the liquid battery is easy to explode, and the polymer battery core can only be air drum.
2, light weight
The weight of the polymer battery is 40% lighter than the steel shell lithium battery of the same capacity specification, which is 20% lighter than the aluminum shell battery.
3, the thickness is small, can be made thinner
Ordinary liquid lithium battery adopts the method of customizing the outer casing first, and then plugging the positive and negative materials. The thickness is 3.6mm or less, there is a technical bottleneck. The polymer battery core does not have this problem, and the thickness can be less than 1mm, which meets the needs of current mobile phones. direction.
4, the shape can be customized
Polymer batteries can increase or decrease the thickness of batteries according to customers' needs. Develop new battery models, which are cheap, open cycle is short, and some can even be customized according to the shape of mobile phones to make full use of battery casing space and upgrade batteries. capacity.
5, large capacity
The polymer battery has a capacity of 10-15% higher than that of the same size steel shell battery, which is 5-10% higher than that of the aluminum shell battery. It is the first choice for color screen mobile phones and MMS mobile phones. Nowadays, the new color screen and MMS mobile phones on the market are mostly used. Polymer batteries.
6, the protection board is simple in design
Due to the use of polymer materials, the battery core does not ignite or explode, and the battery core itself has sufficient safety. Therefore, the protective circuit design of the polymer battery can be omitted by omitting the PTC and the fuse, thereby saving battery cost.
7, good discharge characteristics
The polymer battery uses a colloidal electrolyte, which has a smooth discharge characteristic and a higher discharge platform than a liquid electrolyte.
8, small internal resistance
The internal resistance of the polymer battery core is smaller than that of the general liquid battery. At present, the internal resistance of the domestic polymer battery core can even be less than 35mΩ, which greatly reduces the self-consumption of the battery and prolongs the standby time of the mobile phone. The level of integration with the international. This polymer lithium battery that supports large discharge currents is an ideal choice for remote control models and is the most promising alternative to nickel-metal hydride batteries.
May 24, 2019 by keikeilaiy
No matter how advanced technology is, how to change smartphones, at least on the smartphones currently in use, the use of mobile phones is inseparable from "electricity." Even if it is a folding mobile phone that will be on sale, it still needs to be charged before it can be used normally. Therefore, for mobile phones, "having electricity" is crucial. However, the "electricity" has also caused a lot of troubles for many mobile phone users, especially the mobile phone charger can not charge for this point, many users have said that "the same disease." After all, the charger of the mobile phone suddenly fails to charge, is it for what reason? How should we deal with it? Mobile phone charger wholesale factory tells you how to solve the problem that the mobile phone charger can not charge
The first reason: there is a problem with the charging interface of the body
Although many mobile phone manufacturers now launch smart phones with no-hole design, they have not yet "occupied" the user market. Therefore, for the smartphones that are now commonly used, most mobile phones support wired charging technology, which further demonstrates the importance of the "charging interface". Such a charging port is often one of the designs that are easily damaged. For example, it is accumulated and blocked by tiny debris such as dust from the outside, and therefore, it is easy to affect the user's wired charging. If your phone doesn't charge, you can check if there is any obstruction in your charging port. If it is, it is recommended to use a fine tool that is not sharp, non-humid, or high temperature to clean it, but in case of accident, take it to a professional repair shop for repair.
The second reason: there is a problem with the charging cable
When the mobile phone can't normally use the normal charging work, if the environmental conditions permit, you can ask the people around you to borrow a charging cable that can also charge your mobile phone, and then try to finish the charging work. If you can, then there is a problem with your data cable and you need to replace the new data cable. The following is how to choose the charging cable. In the market, the data lines are often of high quality. Firstly, the external workmanship is more meticulous, and the edges of the plug are free of burrs and resistance. Dirty data lines; then from the inside to examine - select those data lines with good plug-and-play experience, strong current transfer capability and short charging time.
Reason 3: There is a problem with the charger
How can I check if the problem is caused by the charger failure? The charger can be separated from the data line, and then the mobile phone can be charged through the data line by other means. If the mobile phone can perform the charging work normally, the charger often has a problem. To do this, the user needs to replace the charging head. The following is a suggestion on how to buy a good quality charging head. Experts believe that for electronic technology products, the choice of replacement items is always original, so the charging head is no exception. . However, if you are interested in choosing a non-original charging head, then experts recommend that you choose a product that is produced by a regular, qualified manufacturer, and that you choose a product that is of good quality and relatively well-known. At the same time, it is necessary to pay attention to whether the current of the selected charging head is similar to the current of the original charging head. In order to provide better safety protection for the mobile phone, it is necessary to select plugs with the same or similar current.
The fourth reason: the phone system settings are faulty
If the above reasons are all ruled out, it is very likely that the settings of the mobile phone system have failed. If this is the reason, it is recommended to contact the mobile phone manufacturer for post-sale maintenance, and then take the regular mobile phone repair shop for maintenance. Of course, in addition to the above suggestions, according to industry insiders, there is a self-operating method, but if your mobile phone wants to continue to use, regardless of the new machine, or can not take risks, do not take the following actions -
Mainly for user phone settings for Android:
First make sure that the phone has backed up all the data, and then confirm that the phone has obtained the "ROOT" permission - enter the Android phone into "Recovery" mode → "Wipe" → "wipe battery status"; after completing the above steps, restart the phone (ie reboot) it will be fine.