ADB commands for Android. Device Offline, what to do, how to fix adb device offline message on android 4.4
Do you want to Root or customize Android, but the “device offline” error constantly appears when working with ADB? There may be several reasons, it's time to solve them!
If you constantly get the “device offline” error when trying to work in adb, although you have enabled “USB Debugging”, but the problem repeats again and again and you don’t know what to do next. Website Android +1 offers 3 solutions!
Instructions How to fix the “device offline” error
Problem #1. Old driver
One of the reasons why the “device offline” error may appear may be an old or “wrong” driver. Solution? Install or reinstall a new Android driver. After this, be sure to restart your computer.
Problem #2. USB cable
Another reason is the USB cable your Android is connected to. Even if you successfully transferred and received files using the cable to which your Android is connected, find another one anyway!
Problem #3. ADB.exe is outdated
One of the main problems with the appearance of “device offline” may be the outdated adb.exe utility and the libraries required for it. Exit download the latest version of ADB!
If it doesn't help solve the problem...
- Restart Android every time after fixing the problem;
- Pay attention to the USB port on the device; you can clean it with a toothbrush, and if damage is detected, send it to service;
- Change on your computer USB port connections.
That's all! Read more articles and instructions in the section Articles and Android Hacks. Stay with the site Android +1, it will be even more interesting further!
Device Offline what to do, how to fix it. You want to Root or customize Android, but when working with ADB the error “ device offline"? There may be several reasons, it's time to solve them!
If you constantly get the “device offline” error when trying to work in adb, although you have enabled “USB Debugging”, but the problem repeats again and again and you don’t know what to do next. Our Website offers 3 solutions!
Instructions How to fix the “device offline” error
Problem #1. Old driver
One of the reasons why the “device offline” error may appear may be an old or “wrong” driver. Solution? Install or reinstall a new Android driver. After this, be sure to restart your computer.
Problem #2. USB cable
Another reason is the USB cable your Android is connected to. Even if you have successfully transferred and received files using the cable your Android is connected to, still find another one!
Problem #3. ADB.exe is outdated
One of the main problems with the appearance of “device offline” may be the outdated adb.exe utility and the libraries required for it. Exit download the latest
Majority Android users don't know anything about ADB. The full name is Android Debug Bridge, which stands for “Android Debugging Bridge”. ADB is part of the Android SDK. At ADB help you can perform various actions on your Android tablet or a smartphone, such as: flashing, copying files from a computer to Android and vice versa, system recovery and others.
ADB for Android - what is it?
You probably know that the operating room Android system based on a modified Linux kernel. Therefore, with it there is a need to use command line. Exactly adb program helps establish communication between computer and Android. She is part of the environment Android development SDK, so to install Android Debug Bridge you need to download Android SDK from official website. There are versions for all popular ones operating systems: Windows, Mac OS and Linux. That is, simply put, adb allows you to control your phone or tablet using a computer.
Connect your device to your PC via USB. Make sure all drivers are installed and USB debugging is enabled.
The best way to work with Android Debug Bridge is through the command line Windows string. To do this, in Windows XP, click " Start" and in the input field " Find programs and files" enter " cmd", then click " Enter" If you have Windows 7 or higher, click " Start" and in the field " Execute" enter " cmd" and press the " key again Enter».
- How to Open Command Prompt in Windows 8
- How to Open Command Prompt in Windows 10
adb devices
The most common adb command. Using it, you can determine whether your PC sees the connected device. If you did everything correctly, the following line will appear: “ List of devices attached" After it you will see serial number your smartphone or tablet and its condition: " online" or " offline».
If it says “offline”, this means that the device is in sleep mode, if “online”, then the device is ready to execute your commands.
Thanks to this command you can install applications on your smartphone or tablet. To do this, you need to specify the path where the APK file is located:
adb intsall D:\papka_s_faylom\nazvanie_prilogeniya.apk
To avoid writing long paths, copy the file to the android-tools directory. Then the path will be like this:
adb intsall nazvanie_prilogeniya.apk
adb uninstall
You need to enter it in the same way as the previous command. This will remove the application.
This team has an interesting feature. If you add the key -k, then when you delete a game or program, its data and cache will not be deleted, but will remain on the Android device.
Thanks to this command, you can transfer files from your computer to Android. To do this you need to know full path, where the file is stored and where to move it.
adb push D:\papka_s_faylom\nazvanie_fayla/sdcard/Android
To avoid writing long paths, copy the file to the android-tools directory. Then you need to enter:
adb push nazvanie_fayla/sdcard/Android
This command copies files from Android to computer. You need to know the path where the file is located on your smartphone or tablet and indicate the location where you want to save the file. If you do not specify the latter, the file will be saved in the android-tools directory.
adb pull /sdcard/nazvanie_fayla\D:\papka_gde_sohranity
This command will reboot your Android phone or tablet.
With this command you can directly boot into bootloader mode.
adb reboot recovery
Not all devices support this command. Using it you can get into recovery mode.
adb connect
Using this command you can connect the device to Wi-Fi networks. To do this, you need to know the IP address and port of the device.
adb connect ip:port
With this command you get full access to all files on your device.
The second way to use adb shell is to perform a single Android commands shell using this construct:
adb shell<команда>
If you put your Android phone or tablet into bootloader mode, the adb commands will no longer work. Here you need to use fastboot commands.
To check whether PC and Android can see each other, use the command:
After entering it, the serial number of your device should appear.
By entering this command, you can unlock the bootloader of your phones and Asus tablets and HTC. When your device is in bootloader mode, enter:
Also all yours installed programs and personal data will be lost.
Using this command you can display the contents of a log file: changes, errors, etc. The data will scroll too quickly, so the right solution would be to save it in one TXT file. To do this, enter:
adb logcat > filename.txt
adb sideload
The command will be useful for owners of Google Nexus devices. Using it you can update the firmware of the device. Download it to your computer, connect your Nexus to it, go to Recovery mode, select " Apply update from ADB" and then enter the command:
adb sideload name.zip
name.zip- This name zip file with firmware.
adb backup and adb restore
Team adb backup creates a backup and adb restore restores from backup.
This article is intended for experienced users who have already encountered ADB (Android Debug Bridge) and know what it is. Quite often, when starting ADB, users receive the error “device offline” or “device not found".
We will tell you about the main ways to fix this problem.
Reason #1. Outdated driver
One of the main causes of "device offline" or "device not found" problems is outdated Android drivers. Download new version You can find drivers on the official website of the manufacturer of your gadget or on our website, in the section or by finding your device in our.
Reason #2. Poor quality USB cable
Another reason may be the poor quality of the cable that connects the smartphone or tablet to the computer. Even if you transfer files without problems, working with ADB or updating the device's firmware with a low-quality cable can cause problems. If you have an expensive smartphone from a famous brand, then use only the included cable. If you are on a budget chinese smartphone, then the branded cable should be ordered separately. Its price on ebay is only a couple of dollars.
Reason #3. Outdated version of ADB
Besides outdated drivers, your computer may be using an outdated version of ADB itself. To avoid infecting your computer, we recommend using the official Google website, where you can download latest version developer kit.
There are also several universal tips that will help not only with difficulties with ADB, but also in many other situations:
- Restart your computer
- Reboot your mobile device
- Connect the USB cable to the connector on motherboard(instead of the connector on the front panel)
Most Android users don't know anything about A.D.B.. Full title - Android Debug Bridge, stands for Android Debug Bridge. ADB is part of the Android SDK . Using ADB, you can perform various actions on your Android tablet or smartphone, such as flashing, copying files from your computer to Android and vice versa, system recovery and others.
ADB for Android - what is it?
You probably know that the Android operating system is based on a modified Linux kernel. Therefore, there is a need to use the command line with it. It is the program adb helps establish communication between computer and Android. It is part of the Android SDK development environment, so to install the Android Debug Bridge, you need to download the Android SDK from the official website. There are versions for all popular operating systems: Windows, Mac OS and Linux. That is, to put it simply, adb allows control your phone or tablet using a computer.
I also recommend the following instructions:
Basic adb commands Android
Connect your device to your PC via USB. Make sure all drivers are installed and USB debugging is enabled.
To Work with Android Debug Bridge The best way is through the Windows command line. To do this, in Windows XP, click “Start” and in the “Search programs and files” input field, enter “cmd”, then press “Enter”. If you have Windows 7 or higher, click "Start" and in the "Run" field type "cmd" and press "Enter" again.
adb devices
The most common adb command. Using it, you can determine whether your PC sees the connected device. If you did everything correctly, the following line will appear: “List of devices attached.” After it you will see the serial number of your smartphone or tablet and its status: “online” or “offline”.
If it says “offline”, this means that the device is in sleep mode, if “online”, then the device is ready to execute your commands.
Thanks to this command you can install applications on your smartphone or tablet. To do this, you need to specify the path where the APK file is located:
adb intsall D:\papka_s_faylom\nazvanie_prilogeniya.apk
To avoid writing long paths, copy the file to the android-tools directory. Then the path will be like this:
adb intsall nazvanie_prilogeniya.apk
adb uninstall
You need to enter it in the same way as the previous command. This will remove the application.
This team has an interesting feature. If you add the key -k, then when you delete a game or program, its data and cache will not be deleted, but will remain on the Android device.
Thanks to this command, you can transfer files from your computer to Android. To do this, you need to know the full path where the file is stored and where to move it.
adb push D:\papka_s_faylom\nazvanie_fayla/sdcard/Android
To avoid writing long paths, copy the file to the android-tools directory. Then you need to enter:
adb push nazvanie_fayla/sdcard/Android
This command copies files from Android to computer. You need to know the path where the file is located on your smartphone or tablet and indicate the location where you want to save the file. If you do not specify the latter, the file will be saved in the android-tools directory.
adb pull /sdcard/nazvanie_fayla\D:\papka_gde_sohranity
This command will reboot your Android phone or tablet.
With this command you can directly boot into bootloader mode.
adb reboot recovery
Not all devices support this command. Using it you can get into recovery mode.
adb connect
Using this command you can connect your device to a Wi-Fi network. To do this, you need to know the IP address and port of the device.
adb connect ip:port
With this command you get full access to all files on your device.
The second way to use adb shell is to execute a single Android shell command using this construct:
adb shell<команда>
If you put your Android phone or tablet into bootloader mode, then the commands adb will not work anymore. Here you need to use fastboot commands.
To check whether PC and Android can see each other, use the command:
After entering it, the serial number of your device should appear.
By entering this command, you can unlock the bootloader of Asus and HTC phones and tablets. When your device is in bootloader mode, enter:
Also, all your installed programs and personal data will be lost.
Using this command you can display the contents of a log file: changes, errors, etc. The data will scroll too quickly, so the right solution would be to save it in one TXT file. To do this, enter:
adb logcat > filename.txt
adb sideload
The command will be useful for owners of Google Nexus devices. Using it you can update the firmware of the device. Download it to your computer, connect your Nexus to it, go into Recovery mode, select “Apply update from ADB” and then enter the command.
