Often, iPhone and iPad users, when updating the device's firmware, encounter various kinds of errors that lead to complete inoperability of the device. Difficulties arise for various reasons: an inappropriate or damaged firmware file, incorrect procedure for updating, or simply carelessness. In this article I will talk about DFU - the recovery mode for iOS devices, and also show how to enable it and bring the device back to life.
DFU mode (Device Firmware Update) is a low-level device firmware update mode. It belongs to the emergency mode and is recognized by iTunes when connecting the device to the computer as recovery mode. In this case, the iPhone works without loading the system shell, so the device does not respond to key presses and does not turn on the display. Unlike Recovery Mode , which shows the iTunes and cable icon on the screen. DFU is used to update or restore device firmware only in cases where standard means are no longer suitable for such an operation. In some cases, this mode helps to correct minor software glitch and allows you to reboot in normal mode.
There is only one way to recognize DFU - connect the device to the computer. iTunes will immediately recognize the mode and display a corresponding message.
Ukrainian iPhone Service specialists explained the situation with entering DFU mode:
iPhone can enter DFU mode for various reasons: software glitches, damage motherboard or even after water gets into the insides. Such incidents can provoke not only entry into DFU, but also into Recovery mode - in this case, information from the device can at least be recovered. But the chances are very small.
How to put iPhone into DFU mode
Any device running iOS can be put into DFU mode, but to do this, you first need to connect the device to your computer. The following instructions are simple:
- Press the buttons Power And Home And hold them for 10 seconds.
- Release the button Power, but keep holding Home until iTunes prompts you to enter recovery mode.
After that, you can restore your device using iTunes tips and ours.
How to get iPhone out of DFU mode
If the iPhone somehow entered recovery mode on its own, then you can restore the smartphone’s functionality in this way.
MODE
Meaning:
MODE, -a, m.
1. Order of affairs, actions. R. day. Correct r. nutrition. School district Hospital district Observe p. R. savings(a management system aimed at saving money, reducing the cost and rationalizing production).
2. Conditions of activity, work, existence of something. Worker district cars. Water river lakes. In automatic ~e(about the operation of the machine).
3. Political system (usually about an anti-people, anti-democratic system). Reactionary ~s.
| adj. ~ny, -th, -th (to 1 and 2 values).
S.I. Ozhegov, N.Yu. Shvedova Explanatory dictionary of the Russian language
Meaning:
director And m
m.1) Political system, way of government.
2) A precisely established routine of life and activities.
3) Conditions for the existence, functioning, activity of something.
Modern Dictionary ed. "Great Soviet Encyclopedia"
MODE
Meaning:
(from Latin regimen - management), 1) government system; method of government. 2) An established order of life (work, food, rest, sleep). 3) A set of rules, measures, norms to achieve a goal (for example, economy mode).--- (from the Latin regimen - management ), 1) political system; method of government. 2) An established order of life (work, food, rest, sleep). 3) A set of rules, measures, norms to achieve a goal (for example, an economy regime).
Dictionary of foreign words
MODE
Meaning:
1. Political system, way of government. Tsarsky district
2. The established order of something R. nutrition. Observe p.
3. Conditions of activity, work, existence of something Worker r. cars. Regime - 1) relating to the regime; 2) prof. characterized by a strict regime (secure enterprise).
Small Academic Dictionary of the Russian Language
mode
Meaning:
A, m.
Political system, way of government.
Tsarist regime. Democratic regime.
A precisely established routine of life.
Hospital mode.
(Natalya Stepanovna) got up every minute in the morning at half past six ---. The long-term regime taught her to be precise and sensitive to time. Gladkov, Mother.
Pavel is already accustomed to a strict daily routine, in which they get up by the hour, have breakfast and lunch by the hour. Yashin, Sirota.
A system of rules and measures necessary for a particular purpose.
Diet. Industrial safety regime. Storage regime for fruits and vegetables.
New units were not allowed to make any changes in the firing mode, including even for the purpose of sighting. Moskalenko, In the south-west direction.
A special screen setting, at which the color temperature becomes warmer, eliminates the blue glow - the picture looks slightly less natural, but less strain on the eyes
Is vision necessary? night mode
Over the past few decades, scientists have been studying how blue light affects vision and the human body in general. Research results have confirmed its negative impact on humans. In particular, scientists from the American University of Toledo concluded that blue light leads to retinal degeneration. Pathology occurs due to its rapid aging.
As it turned out, under the influence of blue light, retinal, that is, a type of vitamin A found in the retina of the eye, changes. From a useful element it is transformed into toxic substance which leads to pathology. In addition, retinal is sometimes converted to lipofuscin. It is a pigment with a characteristic yellow-brown color. It accumulates in cells that do not divide and damages them over time.
Changing the retinal formula also leads to the accumulation of calcium in the cells, which leads to their deformation and, ultimately, to death. But this is not the only negative effect of blue light on vision. It also negatively affects the cornea of the eye. In addition, it leads to poor sleep as it blocks the production of the hormone melatonin, which can lead to a number of serious diseases.
Vision becomes especially sensitive to blue light in poor lighting conditions, that is, in the dark. To reduce its negative impact on users’ health, smartphone manufacturers began to introduce such an option as “night mode”. True, not all smartphones have this name. For example, in Meizu and Xiaomi devices it is simply called “Eye Protection”, and in smartphones Samsung Galaxy S8 – “Blue light filter”.
How to activate night mode on bare-bones Android phones
First of all, we note that “out of the box” the “Night mode” option is supported only by two Android versions– Nougat and Oreo. To enable it, you need to do the following:
- Go to your phone settings.
- Select Display.
- Tap your finger on Night Mode.
- Turn the switch to On mode.
You can also set a schedule here automatic switching on and turn off this mode, as well as enable automatic on/off after dark. In this case, your smartphone itself will determine by location when to activate the protective mode and deactivate it.
Smartphones with shells on top of Android
As we said above, many smartphone manufacturers add the “Night mode” function in their proprietary shells. As a rule, the corresponding switch is located in the notification shade. In addition, you can look for this option in the display settings.
In addition to the brands already mentioned, eye protection from blue light is available in smartphones from manufacturers such as Huawei, Asus, etc.
If your phone doesn't have eye protection mode
There are special applications that do an excellent job. An example of this is the popular Bluelight Filter application. It has all the features of Night mode in Android.
In addition, there are many other similar programs: “Night Screen”, “Night Mode: Blue Light Filter for Migraines”, “Protecting My Eyes”, etc.
Light filter on iPhone
The ability to turn on a light filter is available not only in smartphones running Android, but also iOS versions 9 and 10. To enable it, you need to do the following:
- In the settings, select “General” and then “Universal access”;
- Select the “Display Adaptation” category and find “Filters” in it;
- Check the box next to “Hue” and set the two sliders below to maximum.
In addition, iPhone users have the opportunity to download a special FlexBright application with a blue light filter from the App Store.
We come across the term “regime” quite often in everyday life. We constantly hear such phrases as “liberal regime”, “daily regime”, “austerity regime”, “sleep mode”, “in light mode”, “bed rest”. What is a regime?
The regime is strict established order actions, subject to certain norms and rules. The term comes from the Latin word regimen, which translated into Russian means “management, command, leadership.”
Let's see in what areas of life this word is most often used.
Political regime
A political regime is a set of methods by which state power manages society. The extreme polar points of the entire spectrum of different political regimes are totalitarian and democratic.
A totalitarian regime is characterized by the monopolization of power by one group (party, clan), the absence of legal political opposition, state intervention in a person’s private life, and the absence of real rights and freedoms of citizens. Features of a democratic regime are turnover of power, division of power into legislative, executive and judicial, participation of citizens in government through elections, the presence of civil society (union of citizens uncontrolled by the state), protection of political, economic and other freedoms.
In the political sphere there are also such concepts as:
- Visa-free regime - the ability to enter the territory of the state without additional permits.
- A state of emergency is a special legal regime introduced in the event of threats to the political system. Often associated with the expansion of powers of law enforcement agencies and temporary restrictions on rights and freedoms.
- The old, pre-revolutionary regime is the order that existed before the current political elite came to power.
Regimes in the economy
In the economic sphere, concepts such as:
- austerity regime, when the basis of the enterprise’s activities is the principle of rational use of resources and reducing the cost of the production process;
- preferential tax regime is a tool for the state to attract capital to a particular region or area of activity by reducing the tax rate.
Computer operating modes
Any PC user knows that his computer can work in sleep mode, incognito mode, or in multi-user mode.
To learn how to enable different computer operating modes, read the following articles:
Regime in other areas of life
In medicine the following concepts are often used:
- bed rest - restriction of physical activity for certain diseases;
- diet - the need to eat some foods and give up others.
There is also a thermal regime - the temperature range for comfortable existence of humans, animals and plants. Interactive mode - when the user of the system has the opportunity to actively influence it.
And this list goes on.
