a device attached to the system is not functioning что делать
Ошибка Windows «a device attached to the system is not functioning»
Доброго времени суток!
Хотел поделиться с сообществом недавним решением проблемы, которая переодически у меня возникала напротяжении длительного промежутка времени.
Имеется следующая конфигурация:
Сервер с Linux существует уже достаточно долго и на нем побывало несколько версий Debian. Особо не заморачивались с очисткой, поэтому там установлены практически все пакеты. Как нужные, так и ненужные.
С некоторых пор при создании нового пользователя посредством утилиты smbldap-useradd, под этим пользователем стало невозможно зайти по RDP, т.к. сервер отвечал следующее:
a device attached to the system is not functioning
Интересно, что такой ошибки не возникает, в случае, если попытаться войти под другим пользователем, так что мысль о «некорректно функционирующих устройствах» я отмел. В интернете однозначного ответа я не нашел, чего только не советуют.
Путем сличения двух пользователей, я выяснил, что у пользователей, которых не пускают в систему префиксы полей sambaSID и sambaPrimaryGroupSID отличаются. Затем, в файле /etc/smbldap-tools/smbldap.conf я нашел параметр SID, который был таким же, как и поле sambaSID у пользователя, которого не пускало в систему.
На сервере Samba выполнил:
Который мне показал, что этот самый SID различается для домена в целом и для локальной машины.
Тогда я установил для локальной машины тот же SID, что и для домена посредством команды:
И заменил параметр SID в файле /etc/smbldap-tools/smbldap.conf на тот, что значится за доменом.
Для существующих пользователей поменял поля sambaSID на нужный префикс и все отлично заработало!
How to fix “A device attached to the system is not functioning” error on Windows 10?
Issue: How to fix “A device attached to the system is not functioning” error on Windows 10?
“A device attached to the system is not functioning” is Windows 10 specific error, which shows up in a form of pop-up window. It can be closed quite simply – just by clicking on the X button at the top-right corner of the pop-up.
Usually, it shows up when the PC is connected with an external hard drive, [1] USB or another device. In this case, the error is merely an attempt to inform the PC’s user that the external device is malfunctioning and needs proper maintenance.
More often than not, the “A device attached to the system is not functioning” error occurs with the external device attached, so it’s advisable to address the external device in the first place. If that did not help, we’ll try to explain you how to perform Windows diagnostics and how to fix “A device attached to the system is not functioning” error in a comprehensive manner.
How to fix “A device attached to the system is not functioning” error
You should check the system with Reimage Mac Washing Machine X9 before going for more in-depth manual solutions. Actually, you can scan the system with any professional anti-virus tool also to see if any PUPs are running on the PC. However, we recommend using the program designed for PC repair and system optimization, so the program can fix various system-related problems at the same time. This program is dubbed as an optimization tool as it contains a huge database of Windows system files and components, so it’s capable of fixing or replacing the damaged ones. At the same time, it scans the system for viruses and malware. Thus, it’s worth trying.
Run a System File Checker
If your PC is connected with the external device
In case “A device attached to the system is not functioning” pop-up shows up with the external device connected, first of all disconnect the external device, reboot your PC, and then try to reconnect it. If the problem reoccurs, try using another USB data cable [3] to check if it’s not the culprit.
Format the USB storage device
Before doing that, backup all important data that is stored on it. You can do that on another PC. Once done, you should:
If formatting did not fix “A device attached to the system is not functioning” error, follow:
Update drivers on the machine to fix “A device attached to the system is not functioning” error
You can update your drivers and keep them up to date with tools like DriverFix. The program can find the compatible drivers and install them, find the newest ones and save you some hassle. Of course, you can also go the manual route:
Update the Universal Serial Bus Controllers driver
If your PC is NOT connected with the external device
In case you get an error “A device attached to the system is not functioning,” we would recommend you to boot your PC into Safe Mode to check if the problem persists. This will help to identify whether the issue is due to some third-party programs conflict.
Boot PC in Safe Mode
Perform a Clean boot
This way, you’ll be able to isolate the problematic software and, furthermore, fix it.
A device attached to the system is not functioning что делать
Драйвера устройств обычно скрываются в менеджере устройств как только устройство отключится или подаст команду на скрытие (несмотря на то, что они по прежнему установлены в системе). Очень часто «одноименные» драйвера конфликтуют из-за несоответствия версий и пр.
Методика очистки списка не используемых устройств: (Уже многими опробовано и даёт хорошие результаты когда ничего уже не помогает «увидеть» работоспособное «устройство».
0. Отключите от компьютера все внешние USB-устройства.
1. Создайте переменную окружения с именем DEVMGR_SHOW_NONPRESENT_DEVICES со значением равным 1.
Для этого: 1.1. Щелкните правой кнопкой на значке «Мой компьютер» (My Computer) и выберите пункт «Свойства» (Properties).
1.2. В открывшемся диалоговом окне перейдите к вкладке «Дополнительно» (Advanced) и нажмите на кнопку «Переменные среды» (Environment Variables).
1.3. На расположенной в верхней части диалогового окна панели «Переменные среды» нажмите на кнопку «Создать» (New).
1.4. В поле «Имя переменной» наберите (лучше скопируйте отсюда) DEVMGR_SHOW_NONPRESENT_DEVICES, а в поле «Значение переменной» введите 1.
1.5. Два раза подряд нажмите на кнопку «OK».)
Созданная переменная окружения разрешит менеджеру устройств показывать все установленные в системе драйвера устройств (как скрытых, так и всех, когда-либо подключавшихся к компьютеру).
2. Вызовите менеджер/диспетчер устройств:
3. Щелкните правой кнопкой на значке «Мой компьютер» (My Computer), выберите пункт «Свойства» (Properties) и перейдите к вкладке «Оборудование» (Manage).
4. Нажмите на кнопку «Диспетчер устройств» (Device Manager), раскройте меню «Вид» (View) и выберите команду «Показать скрытые устройства» (Show Hidden Devices).
5.4 Раздел «Контроллеры универсальной последовательной шины USB»: Здесь можно удалить все СКРЫТЫЕ (серенькие) устройства: «Ваше устройство» Device USB Driver, Запоминающее устройство для USB, Неизвестное устройство и другие.
5.5 Перезагрузите компьютер.
6. После всех этих удалений попробуйте заново подключить «ваше устройство». Он должен обнаружиться как новое устройство и Windows установит к нему драйвера или вы их установите сами ( на некоторых устройствах нужно устанавливать драйвера без подключения по USB, т.е. подключать после установки драйвера).
6.1 Перезагрузите компьютер.
Обычно такая процедура устраняет все проблемы в конфликтных драйверах «вашего устройства».
7. спасибо за предоставленную информацию Alex_1959, :yes2:
Обычно решение проблемы, прямо или косвенно, отражено в шапке.
A device attached to the system is not functioning error
You have taken superb photos with your iPhone and want to copy them to the PC to view them on a large screen. You connect your iPhone to the PC, but suddenly there is an error message that runs: “A device attached to the system is not functioning”.
What does this message mean? It means there is a connectivity issue between the PC and the connected iOS device, and Windows assumes that the device (iPhone or iPad) is not accessible. The error can occur due to several reasons but rest assured: it is a fairly common problem that can be fixed quite easily.
This point-by-point guide will explain what to do if you see this error.
First thing to check: device connection
In some cases, the error can occur because of a connectivity issue between the USB device (in this case, your iPhone) and the PC.
To prevent this, disconnect your iPhone or iPad from the PC. If there are other USB devices connected to your computer at the same time, unplug them as well. Once it is done, reconnect your iOS device to the PC, preferably using a different USB port and a different cable (see more about ports and cables below).
What is causing the error in Windows 10?
First things first, let’s take a closer look at the most common causes for this error.
In fact, for a long time (starting from iOS 11 and iPhone 7), the default formats for Apple’s images and videos have been HEIF and HEVC respectively. If you are interested in what they are, see what Apple has to say about them. These formats offer the same or better quality than JPEG and H.264 while taking up to 50% less space. On the other hand, they are still much less widespread outside the Apple universe and are not compatible with Windows without special codecs.
This is why, when you copy your HEIF or HEVC files to a PC, they are automatically converted to JPEG and H.264 formats. However, it is during this real-time conversion that the notorious error “A device attached to the system does not work correctly” can occur.
Numerous tests carried out on iOS devices have demonstrated: the error very often occurs when there is no free space on the iPhone or iPad. Why? Well, if there is not enough memory then there is not enough space to save converted files on the iOS device before transferring them to the PC. Suddenly, the system does not understand what is happening … and that triggers an error.
Now, how to overcome that?
Solution 1. Free up space on iPhone or iPad
We already know that one of the most common causes for the error is lack of space on the iOS device when converting HEIF / HEVC photos and videos.
This is why we strongly recommend that, before going on to the other solutions presented below, you check the storage space on your device by going to Settings> General> iPhone Storage.
Important fact
💡 It is strongly recommended that you have at least 1 GB of free space available on the iPhone or iPad. If you find that your available space is below this limit, consider freeing up some space on your device. To help you do this, we wrote a guide on how to optimize iPhone storage. Alternatively, here’s an article from Apple with tips on how to check and manage space on your iPhone
Solution 2. Transfer the original files
As explained above, the error occurs when HEIF (HEVC) files are converted to JPEG (H.264) format during the transfer to PC. It is therefore not surprising that we can get around this problem … by simply avoiding converting files during the transfer. Here’s how to do the trick:
1. On your iOS device, go to Settings and scroll down to “Photos”.
2. In the section “Transfer to Mac or PC” at the bottom of the screen, choose “Keep Originals”.
That did it! From now on, photos and videos will be transferred to the PC with their original extension.
However, as we already know, Windows does not support HEIF / HEVC files. So how do you view them on the PC? Well, there are two solutions:
Download a codec that “teaches” Windows to read HEIF and HEVC files without converting them to JPEG. These codecs can be paid (like the ones Windows offers when you click on a HEIC file) or free like CopyTrans HEIC.
Convert the files using a third-party converter. As the conversion will take place on PC, you can be sure: the error will no longer occur. Here too, you can opt for CopyTrans HEIC which allows you to not only view HEIF files but also to convert them to JPEG. Check out user guide on CopyTrans HEIC for more information.
Solution 3. Transfer photos from iPhone to PC via CopyTrans Photo
By far the easiest and fastest way is to use our CopyTrans Photo application which has been designed for transferring photos from iPhone to PC.
What advantages does it offer? Well, if the default settings of your iPhone have not been changed, this software retrieves the original HEIC files and converts them using PC resources, thus sparing your iPhone the effort.* As the iOS device doesn’t have to reserve space for conversion this effectively eliminates the majority of scenarios that can trigger the error. In addition, the protocols used by CopyTrans Photo ensure a very stable connection. And if you don’t want to convert the files to JPEG, CopyTrans Photo can transfer them in their original format.
You can download CopyTrans Photo by clicking on the button below:
⭐ Want to know more about transferring photos and videos via CopyTrans Photo? Here is the complete guide: How to transfer iPhone photos to PC?
Additional solutions
You have tried everything yet still the issue persists? Aside from the lack of space during conversion, the error can be caused by a variety of technical problems such as bad connection, incompatible drivers or a faulty USB port. See our troubleshooting tips below:
Solution 4. Try a different USB port or lightning cable
Good advice not to be overlooked
In order to avoid any troubles with connection, it is recommended to purchase the original, Mfi certified lightning cables. Using non-certified cables can cause technical problems.
You can tell that the cable is MFi certified if it has the following logo on the packaging:
If you would like to know more about MFi certified accessories, be sure to read the guide by igeeksblog.
Also, remember to check for damage. Even if the cable seems to be all right with no visible defects, it may still be wise to try another.
You can also try connecting your lightning cable to another USB port because it is a possibility something went wrong with the first one. If your PC has more than two ports, it may be helpful to check all of them, one by one.
Solution 5. Update the Apple drivers
In some cases, a bad connection may be caused by outdated drivers.
Do you want to install the latest Apple drivers without having to deal with iTunes? We made it possible! To do this, use the CopyTrans Drivers Installer application. Here is the article that explains how to proceed:
*CopyTrans Drivers Installer will ask you to uninstall iTunes: this is a temporary measure and you will only need to do this once. We ask you to uninstall iTunes to reshuffle the drivers components. After you have done that, you can install and use iTunes again: your media library won’t be affected.
If you want to, you can install the latest version of iTunes. During installation, the latest necessary drivers will be downloaded automatically. Depending on the version of iTunes installed on your PC, choose one of these two methods:
If you downloaded iTunes from the Apple website, open iTunes and go to “Help”> “Check for updates”.
If you downloaded iTunes from Microsoft Store, find the Microsoft Store app via the search bar or by clicking on the “Start” button and open it. Then click on the three dots in the top-right corner of the screen and choose “Downloads and updates”.
Solution 6. Reset location and privacy
When you connect your iPhone to the PC for the first time, you are asked to trust the computer first. In some cases (for example, if you clicked “No” or something went wrong), the error “A device attached to the system is not working properly” may occur. Unfortunately, the only solution available in this scenario is to reset the settings.
Warning
This will erase all your settings regarding trusted computers to which you have connected your iPhone in the past.
Once you have reset these settings, reconnect your iPhone to the PC and confirm that you trust this computer.
We hope this article helped you to find the effective solution to correct the above described issue! Let us know about your experience with this error.
* For converting HEVC video files, CopyTrans Photo will use the resources of Camera Roll, but only if there is enough space on the device. If the storage is not sufficient, CopyTrans Photo will transfer files in the original.
Error 0x80070141: the device unreachable
The error 0x80070141 means that the device is unreachable. It is one of the most recognizable errors encountered by Android and iOS users. It occurs when the user is trying to open, copy or move a photo from a camera storage device to PC.
When transferring files from your iOS device to PC follow these troubleshooting steps to fix this issue:
It should work fine now!
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Maria is our tech support specialist who takes a particular delight in languages, games, experiments and concert whistling. Tweet tweet.
How to Fix the Device Attached to the System is Not Functioning Error on iPhone
Dilum Senevirathne
29 May 2018
You just took some absolutely terrific photos on your iPhone that you wanted to copy or check out on the big screen. Instead, you are greeted with a big fat ‘A Device Attached to the System Is Not Functioning’ error message when attempting to access them. Needless to say, it’s infuriating!
Now before you go ahead and smash your iPhone with a rock, just hold on! It happens due to a trivial reason that takes mere seconds to solve.
Also on Guiding Tech
# iphone
Why Does This Happen?
The ‘A Device Attached to the System Is Not Functioning’ error has been plaguing iOS devices for a few years due to various technical issues — which we’ll go over briefly later on. But if you started receiving this error quite recently, and it happens specifically on an iPhone 7, iPhone 8, iPhone X, or iPad Pro, then it’s most likely due to an issue with your file transfer settings.
A short explanation is definitely warranted here so that you know how the fix below may affect you.
With the introduction of iOS 11, Apple switched its default media formats on the aforementioned iOS devices from JPEG and H.264 to HEIF (High Efficiency Image Format) and HEVC (High Efficiency Video Codec) respectively.
With the introduction of iOS 11, Apple switched its default media formats
The newer formats are in fact very efficient — hence the name — when it comes to storage size and provide similar levels of visual quality regardless. However, they aren’t quite compatible with most devices, so Apple has a setting that automatically converts images and videos into device-compatible formats during file transfers.
Unfortunately, a glitch within the real-time conversion process that goes on in the background appears to be the cause of the ‘A Device Attached to the System Is Not Functioning’ error while copying files to PC.
Fixing The Problem
Since you now know the cause of the issue, it’s easily resolved by prompting your iPhone to transfer images in their original formats. Windows 10 now actively supports both the HIEF and HEVC formats with its own downloadable codecs, so you really shouldn’t face any issues when it comes to opening them.
To change the the transfer setting, tap Photos on the Settings screen of your iOS device. Next, scroll down and enable the option labeled Keep Originals under Transfer to Mac or PC.
That’s it! When importing files via Windows Photos or copying them directly via the DCIM folder on File Explorer, images should transfer over in their original formats from now on. Hence, you shouldn’t see an error during the process.
When it comes to opening the files, you can download the appropriate codecs from Microsoft using the links below.
If you are on an older version of Windows, or if you encounter any compatibility issues when accessing the files, consider using tools such as iMazing (for images) or Handbrake (for videos) to convert copied media to the JPEG and H.264 formats.
At the end of the day, Apple or Microsoft may resolve the issue for good, so make sure to apply the latest updates for each respective platform as soon as they are released. But for now, you must resort to using this workaround.