Samsung Galaxy S6 Android writes no commands. Now send the package you want to apply to the device with adb sideload what is it and how to fix it

Mobile devices have already become quite an integral part of our lives. Now a person cannot imagine existence without a smartphone or tablet. Devices based on the Android operating system are extremely popular. This OS was developed by Google, and now its market share is incredibly high. Apple's iOS and Windows Phone have a negligible presence in mobile markets compared to Android. However, like all technology, devices on this platform tend to glitch. Various system failures are a hallmark of any operating system. No matter how advanced it may be. Very often devices have to be reflashed. But not everyone knows that it is possible to do without such radical measures. After all, any Android gadget has Android System Recovery 3e. How to use it and what is it even? This is what we will talk about.

What kind of animal is this?

What does Android System Recovery 3e mean? This is a kind of BIOS of a mobile device. Any operating system has its own BIOS - a basic input-output system that can work even if the main OS is damaged. Sometimes the BIOS is not similar to the standard one (as, for example, in Android devices). It is used to restore the functionality of a smartphone or tablet, apply critical updates or reset to factory settings. The Android System Recovery 3e menu has many items that correspond to one or another action. But the trouble is that the names are written in English. Therefore, many people do not even know how to use recovery correctly.

That is why this article was written. Android System Recovery, the instructions for which are absolutely necessary, is a powerful tool for setting up and resuscitating a smartphone. You need to know everything about how to use this recovery in order not to waste money on specialists. Doing everything yourself is much easier and cheaper. We will analyze each item in the recovery menu and tell you everything we can about it. So let's begin.

How to enter recovery?

This depends on the specific device model. In some devices you need to hold down the power button and the "Volume +" key. But sometimes there are smartphones for which this is not enough. Older models with a mechanical Home button require pressing this button as well. Some devices require you to simultaneously press the power and volume buttons. There are also those who must hold down the power key and both volume buttons. This applies only to original devices from well-known manufacturers.

But there are also frankly “Chinese” gadgets with an incomprehensible operating system and “crooked” translation. Standard methods of logging into recovery may not work in these cases. There are several options here. First: study the smartphone documentation (if available) and find the desired key combination. But this option is not suitable for everyone. Most of these devices either have no documents at all, or the documents do not contain Russian at all. The second option: find the desired combination by pressing all the buttons one by one. Now let's move on to the Android System Recovery 3e menu items.

Reboot system now

This menu item performs a complete reboot of the device. After selecting this option, the smartphone will load the standard Android operating system without any changes. Typically, this item is used after completing all manipulations in recovery. Or if you loaded into this mode by accident. Although it is unknown how this can be done accidentally. Be that as it may, Android System Recovery 3e, the instruction manual for which is simply vital for the user, has such a clause. And we have to take this into account.

The menu item should be used last. That is, when all operations are completed, all components are updated, factory settings are reset and firmware is installed. This is the essence of a reboot: to allow the device to apply all the changes made. True, after some of them the smartphone may not boot at all. But that's a completely different story.

Apply Update from External Storage

This menu item allows you to apply the update that is located on the memory card. By the way, new firmware is also installed through this point if the main OS does not boot. There are several sub-items in this Android System Recovery 3e menu. How to flash a new OS? To do this, you need to go to this menu and select Choose ZIP from SD Card if the firmware is in ZIP format. If this is just an update file, then you should select Apply Update From SD Card. This is how any device is flashed using recovery. Simply copy the firmware file to the root of the memory card, go into recovery and select the desired item.

This paragraph has other subparagraphs that apply in non-standard situations. It is possible to check the MDSUM of the firmware file. This option checks the file for integrity and if something is wrong, it immediately issues a warning. You can also check the firmware file for compatibility with the device. These are the informational options of Android System Recovery 3e. Instructions as such are not required for them. If there are errors, then you do not need to install this firmware. That's the whole story.

Wipe Data. Factory Reset

This is a very important point. This option can restore the functionality of the device without any firmware. This tool resets the gadget's operating system to factory settings. Naturally, everything that was on the smartphone will be deleted: applications, photos, music. In general, everything that was in the internal memory of the phone. Android System Recovery 3e, the operating instructions for which are discussed here, was created precisely in order to revive the device without serious intervention in the firmware. And this option allows you to perform this operation.

This function is also used before installing any firmware. It is necessary to reset the phone to factory settings before flashing the firmware. Otherwise, the new operating system will be unstable. But that's not the worst. If you do not return to the factory settings, the firmware may not be installed at all, and then the user will receive a completely “dead” smartphone. There are no instructions in Russian, but the one that is there clearly states that it is imperative to use the Wipe Data & Factory Reset item before each firmware update of the device.

Wipe Cache Partition

Another useful command in Android System Recovery 3e. The recovery instructions say that you need to use this option in tandem with Wipe Data. If the previous item clears the internal memory of the device, then this one clears its cache. Namely, this is where the working application files are stored. Of course, if this is not done before installing the firmware, then nothing bad will happen. It’s just that in the future, when installing new programs, the device’s cache will grow to incredible sizes. As a result, the smartphone will work very slowly. But this is not so scary, since there are many programs for clearing the Android OS cache. And they work great.

It is also recommended to select this function after a factory reset has been done. This will help the smartphone become even “cleaner,” which will have a positive effect on the performance of the operating system. The instructions in Russian for Android System Recovery 3e recommend performing this procedure after the reset. Before rebooting the device. Then everything will be as it should be.

Wipe Battery Stats

This feature helps you refresh your device's battery. After clicking on this item, the battery cache begins to be cleared, into which the current state of the battery, its nominal capacity and other necessary parameters are recorded. By resetting the battery usage statistics, you can slightly extend its life. And the new firmware will work more adequately with the battery. For some reason, many Android “gurus” are dismissive of this option. But in fact it is very useful. However, it is not recommended to use it too often. Only before flashing the device.

Mounts. Storage

Here are the controls for the internal and external memory of the smartphone. This item allows you to clear a memory card or built-in memory, format it, or attach it as a drive directly from recovery. This section can be used if you forgot to transfer the firmware file to the memory card, and there is no desire to reboot your smartphone into the operating system. In order to mount the device's memory card as a drive, you need to select Mount USB Storage. As soon as the connection is established, the computer itself will install the necessary drivers for operation.

Once the connection is established, you can do whatever you want with the memory card: format, clear, copy the necessary files, and so on. In order to unmount the flash drive, you should select the Umount USB Storage item on the smartphone screen in recovery. After this, you can move on to other recovery points and carry out further resuscitation of the device on your own.

Recovery errors

Sometimes there is such a common error in Android System Recovery 3e as canceling the installation of the firmware or package. It can occur for several reasons: the firmware file is damaged, incorrect information in the binary file, or the firmware simply does not suit this device. But there is another option: before flashing the firmware, the device was not reset to factory settings. It’s good that they can be easily fixed in the same recovery. There are several ways to do this.

So, if the error occurs due to a broken firmware file, then you should download it, connect the smartphone to the computer, go to the Mount & Storage menu item and select Mount USB Storage. After this, you can copy the firmware again to the root of the memory card. If you forgot to “wipe”, then there is nothing easier than moving a few levels higher and selecting the appropriate menu item. But the Android System Recovery 3e error “No command” is very rare. It only appears when the user tries to install an update via ADB. Usually this method doesn't work. As a result, this error appears. So there is no point in using this method. Nothing will work anyway.

Conclusion

So, let's summarize. We tried to describe the capabilities of Android System Recovery 3e. The instructions that resulted from this attempt will help novice users of the Android operating system learn how to restore the functionality of their smartphone with their own hands. Which will ultimately lead to broadening your horizons and saving a lot of money.

It happens that when you turn on your smartphone or tablet, a sad picture appears: a green Android with an exclamation mark that appears directly from its “stomach”.

What's the problem?

If this happens, then it is definitely a software problem. A common failure of the operating system. Of course, in most cases, it was you who had a hand in this.
But this is a fairly popular and widespread problem, don’t worry, now we’ll try to solve everything on our own without any workshops or certified service centers.

How to fix

In fact, there are two very simple ways to solve this problem.
The first method is that you need to go into Recovery (a special mode for entering the bootloader, analogous to the BIOS). To do this, you need to turn off the device, and then hold down the Vol (-) and Power keys. In some cases, the combination may be different, for example, Vol(+)+Power, Vol(-)+Home+Power, Vol(+)+Home+Power and so on.

As soon as you enter Recovery mode, you need to select the Wipe data/factory reset option, but what you need is a factory reset, that is, a reset to factory settings. If you do wipe data specifically, then everything will be deleted.

The second method is to reflash your smartphone or tablet. It is more complicated, since here you will have to look for both the firmware and the flashing utility, unless, of course, you flash it via Recovery. You can even use the stock (standard) Recovery for flashing the firmware if you have the official firmware for the SDCard.

Nothing works out

If you cannot cope with the problem of the exclamation mark being displayed when turned on, then you can seek free help on the RuleSmart forum, in the Android first aid section. They will help you there, specialists respond daily to everyone, but describe the problem in detail, and also in a respectful tone; we hope there is no need to explain here?

The green android robot no longer greets you when you turn it on, but lies accompanied by an exclamation mark.
So, if you see this picture - the android is lying with an exclamation mark, then you can be congratulated, you have made your first unsuccessful experiment in interfering with the software of your device. What is it, and most importantly, what to do with it and how to restore the viability of the device? The search for answers to these questions must begin, first of all, by finding out the reason that led to this condition.
If you installed an incorrect program for Android, then after rebooting it will definitely please you with an image with an exclamation mark. There is only one way out - do a hardware reset by selecting Wipe data/factory reset in the engineering menu.

Entering the engineering menu if your Android is different on different Android smartphones, but the combination of the home, power and volume down keys is recognized as standard. On devices with a touch home button, a combination of the power and volume down keys is usually used. The key combination suitable for your device must be pressed with your fingers and held until the service menu appears on the screen.

After the inscriptions appear, you must select the appropriate item by moving up and down using the volume rockers. After selecting this item, several lines will appear on the device screen asking whether you agree to delete all data from your device. After selecting the yes line, the device memory will be completely cleared. The next step, if the device does not reboot automatically, select rebootsystemnow, which means rebooting the system. If after these operations your device has restored its functionality, then we can congratulate you. The only disadvantage of this method is the loss of all information - including contacts, SMS, photos and downloaded applications.

However, if you regularly synchronize your phone with Google and remember your account login and password, then your losses will be insignificant.
If the above method does not help, then you need to completely replace the software. There are two ways - the first is flashing the device using a USB cable and a computer, but it will only help you if the “usb debugging” function has been enabled in the device settings. The second way is to update the software using a flash card through the engineering menu. Both methods are very risky and the slightest violation of the instructions will lead to the complete destruction of the device. At this stage, you should think about whether to try to restore the device yourself or trust the professionals.

If you nevertheless decide to flash an Android with an exclamation mark yourself, then you should carefully study all the information provided on the Internet on this issue. Certain types of Android devices have significant differences and features regarding software changes. If we briefly and generally describe this process, it looks like this: you find the firmware file on the Internet, download it, simultaneously studying reviews about this version and installation information. After this, you decide on the method of performing the Android recovery procedure with an exclamation mark.

If you chose the method using a USB cable, then unpack the firmware files into the root directory of drive C on the computer, install drivers for your smartphone if necessary, turn off the phone, use the key combination (usually the combination power+volume up) to enter the phone into firmware mode, connect via a USB cable to the device and follow the further instructions of the program. Once the process is complete, be sure to hard reset your device to default settings using the recovery menu.

If you decide to resort to the second method and restore the software using the device itself and a flash card, then the steps are as follows - upload the firmware file to the root directory, insert the flash card into the phone and launch it in recovery mode. After the engineering menu appears, select the recovery option using SD and wait. After finishing, you also need to reset your Android device.

You can use Android and never go to the Recovery Menu. But if the phone does not turn on and does not enter Recovery, or you wanted to install custom firmware, then you will have to understand the reasons for the reluctance of the device to start.

This article is suitable for all brands that produce phones on Android 9/8/7/6: Samsung, HTC, Lenovo, LG, Sony, ZTE, Huawei, Meizu, Fly, Alcatel, Xiaomi, Nokia and others. We are not responsible for your actions.

Why doesn't Android go into Recovery?

Some smartphones do not have official Recovery at all, so you have to immediately install a custom one. If the message “No command” appears on the screen with the robot lying down, this means that Recovery is available, but there were problems launching it. To fix the problem, quickly press the power button and volume up key.

If Android absolutely does not boot into Recovery, then the reason for this behavior may be an error, which can also be eliminated by installing a custom Recovery. If installing custom Recovery does not help, you should contact a service center - there may be hardware damage that cannot be repaired using software methods.

How to enter the Recovery Menu

The login procedure differs depending on the mobile device manufacturer. To get into Recovery, you must first turn off the phone and then hold down a certain key combination. , controlled by the volume keys and the power button. You should not confuse Recovery with, which simply disables all third-party applications. Recovery is, rather, an engineering menu for managing the phone bypassing the system.

Keyboard shortcuts to enter Recovery on different phones:

• Lenovo - “Volume +” and “On”.
• HTC - "Volume -" and "On" or “Volume +” and “On”.
• Samsung - “Home”, “Volume +” and “On” press simultaneously.
• Meizu - "On" and “Volume +”.
• Xiaomi - "On" and “Volume +”.
• Fly - “On” and “Volume +” or “On.” and "Volume -".
• ASUS - "On" and “Volume +” or “On.” and "Volume -".

If the combination does not work and the phone does not connect, try looking for a combination specifically for your model. There are also universal ways to launch Recovery - using a computer or special applications. If you have a computer at hand:

1. Download and install ADB and phone drivers.
2. Connect Android via USB, .
3. Launch ADB and run the command “adb reboot recovery”.

What to do if there is no computer? Install the Boot Droid application. In it you need to select the “Recovery” icon and click “Yes”.

You can also get into Recovery using Terminal Emulator. Type “su” in it, provide root access and execute the “reboot recovery” command.

Recovery features

Recovery Mode capabilities vary depending on the type. If this is the official recovery menu, then the functionality will not be the highest:

• Reboot to start Android normally.
• Installing updates.
• Factory reset.
• Clearing the cache.
• Creating a backup copy and restoring data.