Mobile Phone battery common faults

1, the battery is not durable. There are many reasons why a mobile phone battery may lose power faster than usual. You can look at the battery consumption of each app in the settings. For some power-hungry users, if you are not used to it, don’t leave them in the background of the phone. With the battery-optimized app, you can monitor and end some useless applications and processes to save power and extend battery life.

 

2, suddenly shut down. It is often found that the phone battery suddenly shuts down before the battery reaches zero. This is mainly because the electricity metering is not allowed.

 

The mobile phone automatically shuts down when the battery power has not been used up, in order to keep some of the memory and normal use, but the aging of the mobile phone increases the error of reaching the critical value.
3, feels very hot when charging. Nowadays, fast charging is popular, in fact, it is to charge the mobile phone with a large current. When charging, the energy conversion process will heat up. Under normal circumstances, there is no problem, and the general manufacturers have done rigorous testing. However, if you feel very hot, then beware of whether the battery is a problem, after all, there have been some “big killer” pretending to be a mobile phone. Also be careful to avoid extreme conditions, such as summer hot and hot cars

Samsung i9100 mobile phone stuck, can only do in the lock screen interface

1. Long press the right power button for 8-10 seconds to boot
2. Restart the phone and press the menu button in the lower left corner to enter the phone security mode, and then check if it can be turned on normally. If you can boot, please delete the recently installed third-party software, or restore the phone to factory settings after backing up important data.
3. If the problem persists, it is recommended that you carry the mobile phone three-pack certificate and send the mobile phone to the nearest Samsung service center for testing.

When the mobile phone is charging while playing, does the power consumed come from the battery or the charger?

Let’s first take a look at the battery usage when charging. When the phone is charging, the current from the charger will be divided into two parts. Most of the battery will be supplied to help the battery to be stored. The other part will be supplied to the phone’s motherboard. Meet the needs of the phone to do other work. If it is used while charging, the current supplied to the main board of the mobile phone will increase, and accordingly, the current supplied to the battery will be reduced.

 

Since the battery can only be in the one-way working state, either charging or discharging, it is impossible to output power while inputting the power. At this time, it depends on the power of the charger.

If the power of the charger is very high, it can bring a huge current, so if the mobile phone is used while charging, the battery will always be stored, that is, the power is always increasing; but if the power of the charger is very low, or The quality of the data cable is not good, and the power consumption of the mobile phone is very large, so the power from the charger will be in short supply. How to do it? At this time, it is necessary to use the battery storage power.

 

Therefore, when the power of the charger is high enough, the mobile phone can still be charged when it is used, but the charging time will be longer; when the power of the charger is not high, the charger can not only charge the mobile phone but also need to be powered by the battery. The mobile phone will be charged less and less.

This latter situation is very common in the past, but with the popularity of fast charging, the power of the charger is very high, so the current mobile phone can basically meet the charging while using.

 

However, because the charger charges the battery, in the process of converting electrical energy into chemical energy storage, heat is generated due to loss; at the same time, the mobile phone generates heat when it is operated under high load, so the mobile phone will appear hot.

So the conclusion is that the phone is used while charging, and the power consumed comes from the charger. Unless your charger has low power or poor data quality, you will need the battery to supply power.

 

In addition, although the mobile phone can be fully charged while using it, the heat generated in this process will damage the battery and reduce the battery life; there are also uncertain risk factors such as an explosion.

Therefore, it is recommended that everyone use the mobile phone reasonably. Not only does the mobile phone need to replenish energy, but the person himself needs to rest. The mobile phone will also produce health problems such as cervical spondylosis and myopia.

Lift Camera

The reason why the lift camera appears is also a result of the full screen, looking for a “home” for the “nowhere to put” front camera.

It must be said that the design of the lift camera is sufficiently creative and practical, and it has achieved satisfactory results in terms of lifting speed, photographing and unlocking. The process is accompanied by sound effects and is very sci-fi.

Although there are many full-screen formats at present, I believe there will still be a mobile camera phone next year.

The price of the first batch of 5G mobile phones is released? China Mobile: 8,000 yuan or more

At the China Mobile Global Partner Conference held in Guangzhou, some manufacturers predicted that the price of the first batch of 5G mobile phones next year would be high, ranging from 5,000 yuan to 10,000 yuan. China Mobile predicts that in the pre-commercial phase of 5G in 2019, the number of tested and pre-commercial 5G terminals may be more than 30, and the price of 5G mobile phones is expected to be above 8,000 yuan. However, by the 2020 commercial stage of 5G scale, the threshold of 5G mobile phones may fall to the level of more than 1,000 yuan.

 

Tianjin’s Samsung mobile phone factory’s “ten years of ups and downs”

For the local, Samsung Communications is undoubtedly a landmark existence.

Located near the company in the Xiqing District Microelectronics Industrial Park in Tianjin, there is more than one bus station named after “Samsung Communications”: on the Edison Road where the factory’s north gate is located, there are 826 buses stopping at this station, and the east side is Weiwu Road. There are 504 road signs with the same name – although within a few hundred meters, a group of “Samsung” companies, including Tianjin Samsung Vision, Tianjin Samsung LED, etc., “Samsung Communications” has become the representative of this film.

Standing side by side with the “Tianjin Samsung Communications” on the roof of the main building of the factory is the “Samsung Smartphone”, which also implies the real role of the factory.

Born in 2001, with a registered capital of 104 million US dollars, Samsung Communications, a joint venture between Samsung Electronics Co., Ltd. and Tianjin Zhonghuan Electronic Information Group Co., Ltd. (hereinafter referred to as Zhonghuan Electronics), has always been the “first mover” of Samsung mobile phones in China.

In fact, in the second year of the factory’s establishment, Samsung mobile phones began to enter the Chinese market. Subsequently, relying on many advantages such as shape, technology, screen, etc., Samsung mobile phones began to stabilize their market position.

“I am here at the company, and I have experienced the whole process from rapid development to glory, then to decline and now closed.” As an old factory employee, Yang Lin had ample reason to be proud. He told the 21st Century Business Reporter, “2013 is a factory. In the most brilliant year, the monthly output is up to 10 million units.”

At that time, Samsung mobile phones are also catching up with the wave of smart machine replacement, and the models represented by Samsung Galaxy series mobile phones frantically seize the market. According to researcher Counterpoint, Samsung’s mobile phone market share in China was 20% in 2013, ranking first.

However, after that, Samsung mobile phones entered a bottleneck in the Chinese market and lost ground. Correspondingly, the output of Samsung Communications is also declining.

According to data provided by IDC China to 21st Century Business Herald, Samsung’s annual market share in China was 5.5% in 2016, less than 3% in 2017 and 0.9% in the first three quarters of 2018.

Even Samsung’s global smartphone sales have begun to weaken. According to Gartner data, in the third quarter of this year, Samsung smartphones shipped a total of 73.306 million units, down 14.3% from the 85,560,300 units in the same period last year. Samsung’s share of global smartphone shipments in the quarter also fell to 18.9% from 22.3% in the same period last year.

The decline in sales means that the intention to control costs is even more urgent.

“The production of Samsung mobile phones is gradually shifting to factories in Huizhou and Vietnam, China.” Many Samsung employees told 21st Century Business Herald.

According to previous reports from South Korean media, Samsung Electronics’ annual production capacity in the two factories in Beining and Taiyuan, Vietnam, is 240 million units, while the Tianjin plant has an annual production capacity of 36 million units and the Huizhou factory has 72 million units.

How can Lenovo mobile phone stay in this year in 2019?

Chang Cheng said that the current market is much colder than we thought at the beginning of the year, but for Lenovo, the impact of the market is not particularly large, and our most important concern is to solve the problem to the user side – because we are now The amount is not that big, and the routine adds.
The small-scale is the advantage of Lenovo’s mobile phone. There is no Lenovo mobile phone with a sales KPI package. This is one of the reasons why Z5 Pro can intercept the 855 chip.
As for how to use the Lenovo mobile phone for the winter, the routine also has its own views. He believes that whether a mobile phone can survive depends on two driving forces. First, the existing cost, that is, the expense rate, so many people, so much money, you must spend so much. The second is the profit rate. Lenovo “winter” pays more attention to the expense rate, spends less money, does more efficient things, and hopes to do some optimization.

In 2019, Lenovo had no target in market share, only two keywords – “growth.” Chang Cheng believes that “when others are afraid, we have to be greedy.” In 2018, Lenovo spent a year making products, and finally returned to the normal rhythm today: “New things will not be slower than people, will follow Like others, even in some places, they will lead some opponents.”

“If we are still developing a conference, it means that we are still alive.” Chang Cheng said that no one knows what will happen in the future, but “only if there is a return to the product, there is a way out.”

Lenovo Changcheng: Lenovo mobile phone to launch a price war to cut off industry profits

The vice president of Lenovo Group and the head of the mobile business China region announced that Lenovo’s mobile phone should launch a price war in China and cut off the profits of other manufacturers. Chang Cheng said that Lenovo’s mobile phone shipments in the Chinese market have been growing against the trend for four consecutive months, with a growth rate of more than 70%. The data also shows that from April to September this year, Lenovo’s mobile phone sales in the domestic market increased by as much as 85%. In the overall industry downturn, the growth rate far exceeded other manufacturers.

 

Will charging a mobile phone using a laptop decrease the laptop’s battery life?

A laptop battery typically has a capacity of 4000 to 10,000 maH and voltages ranging from 10 to 14 volts.

A cell phone like the iPhone 6 has a 1800mAh 3.7V battery.

First you are right, if the laptop is on charger than charging the cellphone by USB port does not cycle current from the laptop battery. The current comes from the laptop charger and only slows down the rate at which the laptop will recharge.

Second case, if the cell phone is charge from your laptop running on battery. Then the charge will come from the laptop battery and potentially reduce is life by using up charge cycles.

But the  iPhone 6 absorbes 6.7 WH for a full charge (3.7V x 1810 maH)
The laptop lets assume is a 10.2V 6000 maH system and therefore has energy of about 60 WH.

So charging a fully depleted iPhone from the laptop battery will take about 1/10th of the laptop charge.  or 1/10th of a discharge cycle. probably the laptop is rated for 1000 full discharge cycles? So a small part of its life is given up. I’d do it when travelling for convenience or emergency but not every night when at home.