How to call BIOS on android. Is there a BIOS (recovery-mode) on Android and how to go to it. Universal method for all Android devices using PC and ADB

BIOS is basic system I / O (from English - Basic Input-Output System), in other words, software or system that has access to the primary interface of the equipment (API). This is a separate chip in motherboard And which stores the time and configuration of this equipment by charge the battery when the network is disabled.

The essence of this software In stationary computers, it is setting up and testing equipment on the motherboard before operating system boot. If we talk about portable devices such as: tablets, smartphones, smart watch And they are similar devices, then the term BIOS is not entirely correct. Under the basic I / O system on mobile devices It means that Recovery mode or in Russian recovery mode also say: "Recovery Mode", and you can also find the term "engineering menu". However, if we talk about Windows tablets, then there is a basic I / O system similar to such as in stationary systems. As tablets with operating windows system 8.1 has a similar architecture with desktop computers and laptops.

Usually, if you say about BIOS, IBM motherboards are compatible. For other platforms, other names can be used. For example, "Prom" or "Boot". If we talk about an IMB-PC-compatible computer, then this is a computer that is close to architecture personal computer IBM.

How to go to bios via windows

In fact, options to go to the BIOS on the tablet with the Windows operating system, only two through the operating system itself (if you can run it) and using a USB keyboard, you may need a USB-hub. Although some tablets can still allow you to go using the combination of mechanical keys, for example, the volume keys and turning on / off, while the device must be turned off. Depending on the manufacturer, these combinations of keys may differ, as well as the presence of the keys themselves.

So, if you can run the operating system, then you need:

Choose update and safety

Most likely it is necessary to need a USB keyboard to move (it all depends on the tablet, some support the touch in BIOS, some work only with the keyboard and keys on the tablet itself)

As already mentioned earlier it may be free USB input Or if it is not, then you need a USB-Hub. Again, it all depends on the specific device.

The second method - if it is not possible to start the operating system, is to connect the keyboard and press the specific key. For different tablets It can be a different key.

How to go to recovery on android

The operating system from the search giant "Google" dominates the market for portable devices, but despite the general name exists a large number of Android version and modifications, and each manufacturer portable devices Makes those changes in Android and the devices themselves want. Therefore, to say universal method There is no login in the Recover menu. But we can say that this is a combination of mechanical keys with the device's turning key.

For example, on some devices, this is the volume key + the volume key (+ is simultaneously) + the shutdown key \\ turn on, on other devices it is just a volume key + turn on without other keys. And since on different devices Miscellaneous key combination, then the combination to enter the engineering menu "Recovery" will be different.

Why appropriate engineering menu

If we talk about engineering Menu In general, this is an emergency menu necessary in cases of damage to the work of the operating system files. What can damage the operating system? Yes, anything, ranging from viruses, finishing randomly deletion or modification system files Or errors that have arisen during the operating system update. And when, your expensive tablet on Android ceases to boot, in such cases the recovery mode can help.

Using the recovery mode (some can call its bios for tablets, smartphones) You can update the device to the working version, in other words, if after updating your device it stopped working, you can return to previous version operating system or on the contrary if the device does not boot, but a new version came out, then refresh in the hope that with new version The device will earn. And yet, if you have a complete newcomer better contact the specialists or to those who occupied the restoration of the device. In the engineering menu recovery mode, you can specify a specific update that must be placed in advance on the SD card using the card reader for this.

The recovery menu can also need if you want to sell your device to someone. Here you can choose "WIPE / Factory Reset" What to delete all files and return to the pristine condition of the device. To accidentally not pass any important data, for example, credit card data, passwords from accounts and other confidential information.

But I will pay attention if you select "Wipe / Factory Reset", then restore your data will not be!

Thus, under the bios in portable devices, you can understand how Bios like that we see in stationary, desk computers So the engineering menu on tablets and smartphones. It all depends on the architecture of the device and the manufacturer, and the operating system.

Samsung Series 7 Slate Xe700T1a

System Specification

• CPU: intel processor® Core ™ i5 2467M (1.6 GHz, 3 MB Cache L3)
• Memory: 4 GB random access memory DDR3 at a frequency of 1333 MHz
• HDD: solid State Drive With a capacity of 64 GB (128 GB is also available)
• Screen: 11.6 "LCD (1366x768)
• Integrated graphics: Intel® HD Graphics 3000
• Touch Screen: ATMEL MAXTOUCH DIGITIZER (10 points)
• Accelerometer: six-cylinder accelerometer / magnetometer STMicroelectronics (LSM303DLH)
• WiFi: Intel® Centrino® Advanced-N 6230, 2 x 2 802.11Abg / n
• Bluetooth: Bluetooth 3.0

Installation

The inclusion in the BIOS and its switching is the problem itself.

• Turn on the tablet and press the home button several times.
• The menu will appear, but only for a short time, you must click one of the volume buttons before it disappears. Pressing the "Home" button at this moment will close this dialogue, so do not press the "Home" button for too long.
• Select Settings using volume controls, and then click the Screen Lock button to select it. Now BIOS will boot.

Calling the Recovery menu on Android OS

To go directly to menu Bios. And skip the above menu above, it is usually easier to simply hold the "Home" button after pressing the power button until the pop-up menu appears.

To go to the BIOS, at home, the button runs, the lock button is entered, the volume button up and down, and the volume buttons and the lock button are simultaneously held left and right.

Use it to enable Legacy USB. This allowed me to use a USB keyboard and gave me the opportunity to boot from USB. From here your classic ARCH installation. (Installation Instructions)

net

wireless

The wireless chip works out of the box, both with network and network manager. However, if you place the network manager daemon before Display Manager, if you have, it can sometimes turn off the wireless connection.

bluetooth

Just install Bluez and any external interface (or absence) that you like. Enable when started using SystemD by startup

Buttons

Volume buttons and power button, apparently recognized by default. Like rotation lock and home buttons do not work.

Click the lock button and the "Home" button, then run

You must get such a conclusion

See the following article, setKeycodes, how to configure these 2 keys.

In addition to this article, before starting SetKeycodes you can easily check whether the key you are about to install, already running

where ### is your desired key code.

It is also worth noting that if you want to use it for quick access In GNOME, you need to try several different keys, as it is easy to choose a value that GNOME will not allow, as this may be a letter to a foreign alphabet or similar. GNOME also seems to not allow you to use a value that is not configured to anything, so you basically need to find some really unclear keys for use.

As a result, I went for 167 (Audio Record) and 171 (Tools)

Graphics

The XF86-Video-Intel driver works well without the need to configure.

The brightness most easily changes using the ACPI method described in detail on the backlight page # ACPI.

Touch screen

The touch screen works out of the XF86-INPUT-EVDEV box, and the pen works almost excellent with XF86-INPUT-WACOM.

To force the Feer button to emulate the right click, go to the Wacom settings in the system settings.

The touch screen will be recognized as a finger input by many applications, such as Gnome Files or Chromium by default, and will drag to the scrolling page, and not to the selection of text or objects.

Screen rotation

If you like to use a tablet in portrait mode or any other orientation than normal. Simple screen rotation control is not enough, as the inputs touchscreen And Wacom will still be calibrated in standard landscape mode.

The touch screen is calibrated by inversion of axes and replace the axes. Moving axes basically means that the X axis becomes Y and vice versa. The inverting axis is folded up and down or left and right.

However, the Wacom tablet simply uses the number, 0, 1, 2 or 3, but they do not correspond to the XRANDR numbers.

For non-permanent turns there is a simple scenario SH. Download Slate.sh.

To rotate to a specific XRANDR position

Rotate the Click button (GNOME)

You can configure the screen rotation when you press the key combination, or the side buttons if you set them the buttons above [Disabled Reference: Invoice section]. Go to System Settings\u003e Keypad\u003e Labels\u003e Custom Labels Click "Add" and Under commands Add the path to Slate.sh -r. For example:

Then add. Now you can install a shortcut by clicking on it and pressing the desired keys.

Multitach

The 8-point multitouch now seems to work without an XF86-INPUT-EVDEV-MultiTouch Git Aur [non-working link: archived to AUR-Mirror], and MTDEV is the dependence of XF86-INPUT-EVDEV. The delivery of GNOME 3.14 includes applications such as Eye of Gnome (GNOME Image Viewer) supporting multitouch actions such as Pinch-to-Zoom.

I also installed Ginn Aur and all Utouch Ubuntu (depending on GINN). The default setting gave me a scrolling of 2 fingers in all applications that I tested.

You can test Multitach, running MtView-Git AUR:

It is worth noting that the theory should have 10 fingers Multi-Touch, however, since you can hardly put 10 fingers on the screen, this is not a problem.

Accelerometer / MageNetometer.

Slate series 7, as far as I can judge, uses an accelerometer / magnetometer STMicroelectronics LSM303DLH. Currently, I'm trying to run it. As soon as I do this, I will send instructions on the LSM303DLH page.

sound

After installing the GNOME, the sound works without any additional features. Rocker buttons on the side also work without problems.

Webcam

To force the webcam to work, Gstreamer0.10-Bad-plugins AUR or similar.

accessories

I did not have problems with the docking station. It seems he works as expected.

keyboard

However, there are instructions for setting up the Bluetooth keyboard, however, if you have GNOME installed, run "System Settings"\u003e Bluetooth. Make sure the Bluetooth is turned on. Now press and hold the power button on the keyboard until the LED flashes.

Return to the Bluetooth window on the tablet, press the + button below the device list. It will guide you through the wizard that will twist the keyboard for you. When it gives the code, simply enter it on the keyboard and press ENTER.

To fully explore functionality Your smartphone, you need to know how to enter the Android menu. It's easy enough to do it, and the input itself android itself is very often used by engineers and application developers.

What is useful to Recovery Mode?

FROM using recovery. Mode can be:

Use Recovery Mode is the same as entering the bios android. Remember that incorrect actions can seriously harm the system. However, it is quite simple to deal with Recovery Mode, the main thing is to get acquainted with the instructions and advice of users. Each particular smartphone and tablet has a service menu, therefore an individual approach is always required.

How to enter the menu android: manual

In terms of visual design, the recovery mode in android differs from each model of the device, but the input process is almost always the same. Here is how how to enter the Android menu:

• the first thing you need to do to enter the engineering menu Android - turn off the smartphone or tablet;
• after the device is turned off, clamp the volume button and hold it;
• hold down the key, clamp home and hold;
• without releasing the fingers from the two previous buttons, click on the power button;
• waiting until the operating room starts android systems in recovery mode.

Here, how to enter the Android menu. Of course, there is nothing difficult in performing this procedure, especially since you are practically risking.

Before how to log in to the Recovery system, make sure that the smartphone is working normally and is not infected with viruses. In this case, the likelihood of failures will be minimal.

With a laptop, not so simple. Here you sit and break your head, trying to go to the BIOS on Windows 10. There is one secret. We only told our readers, but do not tell anyone about anyone. Go to the BIOS on Windows 10, you can use the F2 keys or DEL. But on the laptops it hinders one small item: immediately starts to boot operating system. It does not happen on all machines, but it is found quite often. Therefore, it is useless to press F2 or DEL. How to get to the BIOS?

So, the promised trick! You need to log in, and then go to the reboot. Do not help shutdown, hibernation. Need to reboot. Otherwise, do not get into BIOS. And so when the POST test starts again, we will finally see (about 1 second) Invitation (Press F2 to ENTER BIOS Setup). At this time, the F2 and DEL keys are stiguously pumped (and let go). The latter is needed in order not to redo. Because if the OS load starts, then it will be necessary to patiently wait for its end. Then perform everything from the very beginning. This technique allows 100% with confidence to enter Bios even on an unfamiliar laptop.

Stationary PC

Please note that you cannot log in to the BIOS, if the Ultra option is on the quick start. Then the post is folded, the screensaver is cleaned, and immediately the control is transmitted to the Winchestera. And the developers of motherboards assure that it is possible to get out of the situation only in one way - dropping the settings. For this there are two ways:

1. Pull the battery.
2. Press the special button (there is far from all cases).

According to our observations, the invitation still sometimes appears. Because we just got rid of our settings.

This is how, apparently, the case is:

• The board is the start counter.
• For every tenth, the fifth, nh appears a proposal to enter the menu.

This is a reasonable style, because if you put Ultra Fast, you do not have time to see what the desktop appears before you. So, the setting has been changed without removing the battery and related problems. A dozen uses similar tactics: enough to start the PC to be interrupted 2 times with shutdown system BlockHow the recovery means appears on the third. So, the Reset SETUP is not the only way to log in. Even if the ultrafine launch is configured.

In the remaining cases with a stationary PC there are no problems at all. No need to go to a reboot in a laptop. It will be enough hibernation. When you leave it at least 2-3 seconds, an invitation appears to configure BIOS. The entrance is usually done through DEL (unlike F2 on laptops and ESC on virtual machines). For loyalty, it is possible to press alternately F2 and DEL (if the PC is unfamiliar). And only as a last resort, we carry the battery of settings on the motherboard, because it is all reset to factory settings. That in many cases is undesirable.

Notebook

It has already been said that the input is easiest to perform after a reboot.

There is a more extravagant method. Take note if it comes up:

1. Open the laptop housing.
2. Turn off hard disk.
3. Willy-Neils PC will be forced to show the input invitation to the BIOS.

It can be used if it does not work otherwise enter the settings. Many are also interested in how to reset the installations on the laptop. The storage principle is the same as before (apparently, this is the most reliable way). Therefore, the solutions are similar:

• If the battery is available (not the battery, namely the pill), reset through it.
• Sometimes a special button is served to reset.
• In some cases, there will be a jumper (jumper between contacts) to implement the desired operation.

Actually, former masters, this is not in a novelty. But it happens when Bios is perepallin. Here you already need the instruction. Create an example for ASER.

Rent translation:

1. Turn off the power, pull the hard drive, power cord, battery.
2. Disconnect the cord from the real-time clock battery, find the CMOS jumper at the bottom of the compartment with the RAM memory module.
3. Close Contacts
4. Each the power cord from the network (the jumper remains on the spot), press the power button, wait until the POST test passes. Then remove the jumper.
5. Reboot the system (without hard drive), press F2 to enter the BIOS.
6. If the system does not require a password (if it was installed), the settings managed to reset.

It is not difficult to notice that these operations are not under the usual yowser. Why? In order not to have stole information. If the attacker takes a stalled laptop, it will dig for a long time before the data gets. To pull out battery CMOS., you need to work hard and that longer. Here is an exemplary kind of jumper, and do not ask us where to look for the RTC wire (real-time clock). It should be clear that these operations should make a professional by passed by the leadership (Tim.ID.au/laptops/acer/aspire%205732z%205332.pdf).

Tablets

For the tablets, the Android inputs in the recovery menu when loading is simultaneously pressing the power and volume buttons (or up, or down). Then the screensaver appears, from which you can spend all the necessary operations, in particular:

1. Restart Bootloader.
2. Start (launch of android without any operations).
3. Recovery Mode.
4. POWER OFF.

The flopping of options is made by the Loupe / Hitch keys, select the power button.

On tablets with a dozen, everything is different. You need to connect through a special adapter keyboard to the tablet. And while starting to press ESC. At all, as in virtual machines. That's what it looks like.

To open the BIOS on Windows 10, make the launch and press the ESC before the tenth begin to draw circles from the points.

Virtual machines

On many virtual machines by pressing the ESC, the BIOS is called, but the boot menu (the same as the PC F12). If, of course, enable this option in the settings. But the latter relates to real PCs, and on virtuals this parameter is included by default. It is impossible to change it. The said is illustrated on the screen.

After entering the menu you will see standard set options. Not much different from primitive PCs.

The tablet, as a smartphone, laptop or stationary computer, is a minicomputer. It uses almost the same nodes and modules, but all of them are solid and have their own characteristics. Therefore, in it, in theory, the launch and identification programs should also be present.

Unfortunately, this opinion is quite common and is not the truth. IN Android devicesah instead of BIOS, there is an engineering menu called Recovery. And BIOS is available on Windows tablets.

So, enter Recovery in two ways: from the system and when the device is turned on. To enter the menu from the system, it must have a similar function. When you press the Tablet off button, the menu pops up in which the reboot item must be in Recovery. If it is not, then turn off the device, press the "ON" and "Volume +" button at the same time. The tablet will boot in the engineering menu.

In this mode of operation, the sensor does not work, so moving through the menu items is made by the "+" and "-" volume controller. To make an agreement with the execution of the selected item, the "On" button is used, which plays the "Run" function. It is worth noting that after the expiration of a certain period of time, the device itself will leave the menu itself and will reboot as usual.

Attention! All manipulations in the engineering menu do not provide for "protection against fools", so actions can be irreversible. Random keystrokes and incorrect actions can lead to data loss and deterioration of the device.

Why appropriate engineering menu

The Recovery menu provides several options for updating the system, resetting the settings and restore the device's performance after failure. Consider more menu items.

The sequence of items may not be that, but the first line, as a rule, is "reboot_system" - reboot the system as usual. Further there is a set Points with the general beginning of "apply_update_from" that allow you to update from the existing distribution. For example, run the firmware file with a new or simply different version, set the patch and so on. These lines continue by options: external_storage - from external media; INTERNAL_STORAGE - from the internal storage, system Memory tablet; Cache - from the internal system of Rada Cache.

Next is the most terrible item - wipe_datafactory_reset. It allows you to reset the system to the parameters installed by the manufacturer. All information on the tablet will erase, and it will have those functions and programs that are laid by the manufacturer. Selecting the WIPE_CACHE_PARTITION item will allow you to make a discharge of operational information. IN system folder Cache, which is used by the system as an operational storage, fully erased information.

Next is the wand of the Software Manufacturer - Backup _ & _ Restore, by performing which you can restore the system from the backup storage. Plant Manufacturer lays the working image of a system capable of bringing the tablet to the working state when loading.