iPhone touch screen failed

iphone touchscreen 300x225 - iPhone touch screen failed

1. When the phone is locked, the user can Hold down the home button of the phone to start the phone’s voice system. At this time, the touch function is restored. After waiting for a while, you can find that the phone’s touch screen has been restored.
2. You can wait until the phone is almost out of power, and it will enter the state of automatic shutdown. This is to charge the phone. After turning on the phone, the touch screen function can be restored.
3. You can connect your mobile phone to iTunes, and then upgrade your Apple system
4. You can double-click the home button of your mobile phone to exit all the programs in the background of the mobile phone. This is also a way to solve the problem of the mobile phone screen.
5. You can Hold down the power button of your mobile phone, and then Hold down the home button of your mobile phone so that you can return to the home screen of the mobile phone, and you can solve the problem of the mobile phone screen.

How to solve the black screen of iPhone

iphone smartphone 300x225 - How to solve the black screen of iPhone

1. Enter Apple’s DFU mode
1. The DFU mode is a mode that solves the problem of the Apple system that cannot be turned on, and entering the recovery mode can be restored with iTunes. However, if the phone is okay, and the DFU mode is entered by mistake, the failure to turn on is regarded as a phone failure. If this is the case The resulting black screen is easy to solve.

2. You only need to hold down the power button and the Home button at the same time to wait for the iPhone to react. It is usually 10 seconds. If there is no response for tens of seconds, you need to use DFU mode to solve it. Don’t worry, this is the same as the third situation. The solution is the same

Second, the black screen caused by the quality of the iPhone itself
This kind of black screen can be attributed to unstable automatic shutdown, because the quality of the phone itself is not good, which causes it to shut down for no reason. Because the hardware does not have a big problem, so just hold down the power button and wait for it to turn on.

3. Unable to start caused by Apple system
1. If the black screen is caused by the system, you can enter the DFU mode to update the system again. How to enter? First, install iTunes on the computer and download the latest iOS system. Of course, the computer can be connected to the Internet during the restoration process, and it can also be downloaded online, Wait a long time.

2. Then connect the black screen mobile phone to the computer with a USB cable, press and hold the power button and the HOME button at the same time for 10 seconds, and then release the power button in the tenth second (be sure to keep pressing the HOME button, the screen will appear connected icon or black screen It doesn’t matter, iTunes will respond to the recognition machine.
3. Then press the shift key on the keyboard and choose to restore your phone with iTunes. After the prompt is completed, the boot should be resolved.

There are many reasons for the black screen of the iPhone. In addition to the above list, there may be other factors, but the most serious is the firmware damage. If there is a software problem, you can still solve it by yourself, but the firmware damage must be repaired of.

Fast Charging “Quick Charge 5” Updated By Qualcomm

efee0bc0f7e24772915665a0b2fb158a 174x300 - Fast Charging "Quick Charge 5" Updated By Qualcomm

It’s said that the new fast-charging standard can be charging a smartphone from 0 to 50% in 5 minutes or 100% in 15 minutes. Compared to Quick Charge 4 & 4+, Q-charge 5 promoted 70% further efficiency even 10℃ increased in cooler’s temperature in similarly.
Here are12 independent self-protection functions of voltage, current and temperature said by Qualcomm.
As we know, fast-charging is one of the built-in function in Android phones but not only IOS‘patent. Qualcomm is planning to release a new power management IC for Android Smartphone manufactures to integrate them into their devices.
iPhone’s charging speed is 0 to 50% in 30 minutes. As so far now, there is no reliable information as to whether Apple will eventually provide an improved fast charging feature, but there are no rumours yet suggesting that we will see any differences in the 2020 ‌iPhone models.
Something will happen soon but slow. On the one thing, Apple’s charging specifications for fast charging, heat output, and long-term battery life are often conservative.
On the other thing, the first smartphones with Quick Charge 5 will show on in the third of 2020. Qualcomm’s Snapdragon 865, 865 Plus and high-end Snapdragon mobile platforms will all support Quick Charge 5 in the future.

Comment:

If the application of Quick Charge 5 comes true, the mobile experience will be even better in the future!

BQ Series Smartphone Batteries in 2020

Hello guys! Recently, we’ve updated a batch of BQ Smartphone Series batteries for hot-sale. If you are looking for a new one, just check out the following list:

Battery Model Compatible Models Capacity & Voltage Price
BQ-4072 BQ BQ-4072 Strike Mini 1300mAh 3.7v ＄24.50
BQ-4585 BQ VIEW BQS 4585 1500mAh 3.8v ＄18.50
BQ-5503 BQ 5503 Nice2 2800mAh 3.8v ＄18.50
BQS-5022 BQ BQS-5022 BOND 2300mAh 3.8v ＄18.50
BQS-5065 BQ 5065 CHOICE 2000mAh/7.6WH 3.8v ＄18.50
BQ-5035 BQ 5035 VELVET 2000mAh/7.6WH 3.8v ＄18.50
BQ-5512L BQ BQS-5512L STRIKE FORWA 3200mAh/12.32WH 3.85v ＄18.50
BQ-5008L BQ BQS 5008L BRAVE 2500mAh/9.50WH 3.8v ＄18.50
BQ-2405 BQ 2405 DREAM 800mAh/2.96WH 3.7v ＄15.50
3100 BQ Aquaris X / BQ Aquaris X Pro 3000mAh /11.55Wh 3.85v ＄25.50
3120 BQ Aquaris M5 3030mAh/11.66WH 3.85v ＄25.50
BT-2500-259 BQ Aquaris E5.0 E5 FHD E 5 HD 2500mAh/9.25WH 3.7V ＄30.50

Above the BQ cell phone batteries are tested by strict standard-PSE CERTIFICATION, please feel comfortable to buy it!

iPhone 12 may still use Lightning interface

The iPhone 12 series, which will be released in the second half of this year, may make you wonder about the interface. The iPhone 12 series will come standard with 5G, which may be what many consumers want to see. However, according to the latest news, the iPhone 12 series will still use the Lightning lightning interface, which is confusing.

iPhone2 03 - iPhone 12 may still use Lightning interface

Apple did design the iPhone 12 series prototype with Type-C interface, but it has not been mass-produced. Considering that the iPad Pro has adopted the Type-C interface, the use of the new interface in the iPhone 12 series is a matter of success, and the situation of the unification of the Type-C interface is already very obvious. There is no need to continue to use the Lightning interface. But Apple did.

If the news is true, then you may only use the Type-C interface on the iPhone 13. Of course, one possibility is not ruled out, that is, Apple wants to eliminate the interface on the iPhone and completely adopts the wireless transmission method. However, from the current point of view, this method is still far from actual use.

*More Apple iPhone Series batteries to click here.

MateBook X Pro 2020 new laptop review

Nowadays, business notebooks are gradually separated from thin and light notebooks, becoming more and more powerful and more and more secure. People who pay attention to business notebooks pay more attention to their privacy and product stability. The leader in the notebook — Huawei MateBook X Pro 2020.

matebook x pro 03 300x273 - MateBook X Pro 2020 new laptop review

Configuration: i7 10510U / 16GB / 1TB / MX250

For high-end business professionals, the notebook is not only a productivity tool, but also a symbol of fashion identity in business travel. The Huawei MateBook X Pro 2020 is a product that is both “highly acclaimed and well-received.” From the perspective of media and e-commerce evaluations, it has received rave reviews and popular sales.

The Huawei MateBook X Pro series has previously launched three color schemes of deep grey, light silver and cherry-pink-gold. After the upgrade this year, the Huawei MateBook X Pro 2020 model has added a new jade-cold green color scheme. The transparent jadeite is clean and free of impurities. It has a calm atmosphere and fashionable temperament. For the new color, many users call him “atmospheric appearance, a piece of art.”

The newly upgraded 10th generation Intel Core i7-10510U / i5-10210U processor provides Peng Pai performance for the Huawei MateBook X Pro 2020. With 16GB of memory, the system is smoother, and work and learning are more efficient. It is equipped with a PCIe high-speed solid-state drive. To make creativity more efficient and stable. At the same time, Huawei MateBook X Pro 2020 uses NVIDIA GeForceMX250 graphics card, 2GB GDDR5 independent video memory, performance is 3.5 times that of integrated graphics.

In addition, Huawei MateBook X Pro 2020 is also equipped with a 56Wh large battery, equipped with Huawei’s self-developed intelligent power saving mode, and the battery life is also good enough. In terms of charging, it is also equipped with a 65W adapter, which can not only fast-charge the notebook, but also fast-charge some mobile phones that support Huawei’s super-fast charge, which truly achieves multi-use. In addition, the integrated design of the power supply and fingerprint recognition sensor has also been well received, while continuing to retain the unique hidden camera design on the keyboard.

All in all, Huawei MateBook X Pro 2020 is an excellent business flagship both from inside and out, if you are planning to get started, then Huawei MateBook X Pro 2020 is a good choice!

logo - MateBook X Pro 2020 new laptop review

*More low-price HUAWEI Series batteries online to click the following link:

HUAWEI TABLET BATTERIES:

https://www.batteryclub.org/pro_main/318.html

HUAWEI PHONE BATTERIES:

https://www.batteryclub.org/pro_main/88.html

 

 

Misconception of battery self-discharge

Self-Discharging After Charging Some friends say that the battery voltage drops rapidly after charging, indicating that self-discharging is too fast. The reason is that the charging voltage is higher than the actual battery voltage due to the polarization of the battery during charging.

Voltage Drop Process After Charging-This is the battery voltage process from the charging voltage to your own voltage. The actual battery voltage that is the result of the charging voltage is called overcharging, rather than the so-called “virtual power”, and in electrochemical terms there is no name for virtual power. Therefore, the voltage drop after charging is mainly the loss of overvoltage, the rate of self-discharge between them is very small and can be ignored. In addition, it takes more than 4 hours for the voltage to stabilize substantially after charging, and when charging is completed with a constant current or constant voltage, the difference in pause time is not so large.

7 Related Knowledge of Laptop Ports

First, the laptop power port
The notebook power port is a necessary port, which is used to supply power to the notebook and charge the battery. Notebook power port generally include circular power port, square power port, and USB Type-C power port. Do not mistake the square power port for USB. port. Among them, the circular port is the most common, because the diameter of the circular port is different because of different specifications.

Second, the notebook USB port
The USB port is the most common port in the computer. At present, the common USB port are USB 2.0, 3.0, and 3.1. Higher versions represent faster speeds, but there are special cases. For example, the speed of USB 3.1 Gen 1 is the same as USB 3.0. Both are 5Gb / s. There are two types of common USB port: Type-A and Type-C. Type-A is the most common. Type-C is an port that has become popular in recent years. The most obvious advantage of Type-C is that it supports positive and negative plugs. It is very convenient to insert it wrongly.

Type-C also has a special form, which is Thunderbolt 3. The Thunderbolt 3 port can not only be used as a conventional USB port to transmit data, but also be used as a video output port to connect an external display. It can even supply power to a notebook or external device. It is a very comprehensive port. Generally, there will be a small lightning logo next to the Thunderbolt 3 port, and users can distinguish it based on this logo.

Third, the video port
The video port on a notebook computer is generally used for external displays and extended screens. There are three types of video port: VGA, HDMI, and DP. The best port is DP, followed by HDMI, and the worst is VGA analog signal video port. DP is divided into two types: standard DP and Mini DP. Mini DP is smaller in appearance. Standard DP port is rare. Most laptops currently use Mini DP port.

Fourth, the network port
The network port is also called RJ-45 network port. It is a wired network port. After connecting the network cable, it can realize the Internet access function. In addition to connecting the network cable, the notebook has a built-in wireless network card, which can also achieve wireless Internet access.

Five, audio port
The diameter of the audio port jack is 3.5mm, which can connect headphones, stereos and microphones. Generally, the green jack is the audio port for headphones and stereos, while the pink jack is the audio port for microphones. The color is marked with an icon.

Six, SD card reader slot
SD card reader is used to connect the memory card of camera or mobile phone. SD card reader is divided into standard SD card reader and Micro SD (TF) card reader, which correspond to standard SD card and Micro SD card respectively. As the name suggests, the Micro SD card is smaller than the standard SD card, so the Micro SD card reader on the notebook is also smaller.

Seven, security keyhole
The security keyhole is a function to prevent theft of the notebook. It can only be used with a security lock. The security lock is not included with the notebook. We need to buy it.

5 Common Sense About Desktop Power Unit

1, what is active PFC?

Active PFC is mainly composed of high-frequency inductors, switching tubes, capacitors, and control ICs. It can be simply summarized as a step-up switching power supply circuit. This circuit is characterized by complex structure, but has many advantages: power factor is as high as Low loss and high reliability, input voltage can be from 90V to 270V (wide input), etc., because the output DC voltage ripple is small, so the power supply using active PFC does not need to use a large capacity filter capacitor, so we choose the power supply It depends on whether the product adopts active PFC.

2, what is the conversion efficiency?

Answer: Because the power supply is working, some departments’ electrical energy is converted into heat loss. Therefore, the power supply must minimize heat loss. Conversion efficiency is the percentage of output power divided by input power. The 1.3 version power supply requires a minimum conversion efficiency of 70% at full load. In version 2.0, the recommended conversion efficiency has been improved to 80%. Selecting a power supply with higher conversion efficiency can help us save more power.

3. What is 80PLUS certification

PLUS80PLUS certification is actually a sign of high power conversion efficiency. The certification requirement is to integrate the internal power supply of the system to enable the power supply to achieve 80% power efficiency at load points such as 20%, 50%, and 100%. 80PLUS-certified power supplies will have higher conversion efficiency than ordinary power supplies, while also saving energy and money. Batteryclub currently. All desktop power supplies provided by org are provided by 80plus certified manufacturers to ensure safety and reliability.

4. What is the rated power?

A: The rated power refers to the maximum load of the PC power supply under uninterrupted and continuous work. The rated power represents the true load capacity of a power supply unit. For example, the rated power of a power supply host is 300W, which means 24 days a day. When working continuously for hours, 365 days a year, the sum of all loads cannot exceed 300W. But in fact, the power supply has a certain degree of redundancy in order to be able to operate normally when the output power of the power supply reaches a full load, and to avoid damage to the power supply and other components to burn.

5. What is overpower protection?

Answer: In addition to the rated power, there is also a data called “overload protection (OPP)”. Overload protection means that the load of the power supply continues to rise and reaches a certain point, and the power supply is automatically cut off to avoid overcurrent damage to the power supply or other parts of the computer. The OPP value is usually about 1.3 times the rated power. Between the rated power and the OPP, there is a “blind zone”. For example, if the rated power is 300W and the OPP is 370W, then this area between 300-370W is a “blind zone”. If you stay in this zone for too long (usually it can last for tens of seconds), it may cause the power supply or other parts of the computer to burn out.

PC power supply specifications

Desktop computer power supply specifications are divided into:
*Dimensions
* Connector specifications *
* Modular output line

★ Dimensions
The standard size of the ATX-specific PC power supplies currently in use is: length 150 mm x width 140 mm x height 86 mm.

In fact, in addition to strictly matching the width and height, manufacturers can customize the length of the power supply. Sometimes, even if the power supply is of the same brand but different models, the length will be different.

In addition to the standard ATX specifications, there are SFX, TFX12V and other small size specifications, which are used by MicroATX, FlexATX, mini-ITX and other small size motherboards and enclosures, and their cooling ducts are deliberately adapted to small size systems.

Power supply size standard

power supply standard 300x213 - PC power supply specifications

★ Connector specifications
Generally, a power supply will have these connectors:

◇ DC output group

mainpower - PC power supply specifications

“PC Main”
PC main power connector (often referred to as “P1”): This connector is used to connect the main power of the power supply to the main power socket of the motherboard to power the motherboard.

cpu - PC power supply specifications

“ATX12V”
4-pin power connector (also called “P4 power connector”): In addition to the 20 / 24-pin main power connector, the second power connector is connected to the motherboard. This 12V is mainly used for the power supply of the CPU. At present, it has been developed into an 8-pin power connector, that is, the EPS12V standard. An additional 4-pin is added to the original 4-pin to accommodate a higher current to meet a higher power consumption CPU.

p4 300x200 - PC power supply specifications

D-type large 4-pin connector · “Large 4-pin” peripheral power connector: This connector is the standard power connector for almost all previous hard disk drives, and until now it is the standard connector for most power supplies. In addition to hard disk drives, it is also used in various motherboard expansion cards, chassis fans, and chassis lighting. There are also a large number of adapters for large 4-pin to SATA 15-pin power connectors.

berg 300x225 - PC power supply specifications

“Small 4-pin” Molex power connector, also known as Mini-connector, Mini-Molex, Berg connector: is the work of Molex Japan branch, the smallest connection on the power supply Device, mainly for floppy drives. Its pin arrangement is similar to the “Large 4-pin”, and it is also standard equipment for most current power supplies.

sata - PC power supply specifications

“SATA” 15-pin power connector: 15-pin connector for SATA devices, providing + 3.3V, + 5V and + 12V.

pcie - PC power supply specifications

“PCIe 6 + 2-pin” plug-in auxiliary power supply connector, also known as “PCIe 8-pin”: An upgraded version of the PCIe 6-pin plug-in power supply connector, compatible with 6-pin. External power supply for PCIe graphics cards.

◇ AC input

ac input 300x300 - PC power supply specifications

IEC 60320 C13 socket

An IEC 60320 (C13 / C14) -compliant connector (socket and plug) is used as the mains input.

★ Modular output line
◇ Modular and non-modular
The modular power supply (Modular PSU) provides expandable output wire sockets, as well as pluggable wires.

Modular PSU 300x225 - PC power supply specifications

Left: Modular power supply; Right: Non-modular power supply
Generally, traditional non-modular power supplies will reserve multiple sets of cables for peripherals for users to expand the components in the computer, and temporarily unused wires often occupy space in the case. Therefore, using a modular power supply, computer manufacturers and users can plug in the necessary wires due to the needs of the components in the computer, and leave the output power socket of the power supply empty if they are not used temporarily. Improved ventilation and heat dissipation due to the reduced number of wires in the chassis.

◇ Fully modular and semi-modular
According to whether the 24-pin and 4-pin / 8-pin power cables connected to the motherboard can also be removed, modular power supplies are also divided into full modular power supplies and semi-modular power supplies.

modular 300x300 - PC power supply specifications

Seasonic SS-1200XP3 (fully modular)

All wires of the fully modular PSU are removable.

semi modular - PC power supply specifications

The Seasonic SSR-550RM (semi-modular) semi-modular PSU has only some wires removed, and the 24-pin and 8-pin used to connect the motherboard to the CPU are usually retained.

◇ Modularization = Modularization Modularization is also called “modularization”. For example, full modularization is called “full modularization” or “full module”; semi-modularization is called “semi-modularization” or “half-modulation” Modules “and more.