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You can use Android Debug Bridge (ADB) to connect your Fire tablet to your computer for testing and debugging. You connect your computer to your Fire tablet through a micro-USB cable.
Android Debug Bridge (ADB) is a command-line utility for running and managing Android apps on your device or emulator. For more information and instructions on using ADB, see Android Debug Bridge.
Thus, you should try to reinstall the USB device driver. Connect the USB flash drive to the PC. Navigate to 'Control Panel' 'System' ‘’Device Manager' 'Disk drivers'. Find and select your USB device, right-click and first choose 'Uninstall' and then choose 'Scan for hardware changes' to refresh the drivers. » yulong coolpad mobile device usb.rar; yulong inc usb driver at UpdateStar More Windows Driver Package - Yulong, Inc. (WinUSB) AndroidUsbDeviceClass ( 12.
If you're looking for instructions on connecting to a Fire TV instead, see Connect to Fire TV Through ADB.
- Check for Device Connections Using ADB (Optional)
- Troubleshooting
Step 1: Enable Developer Options
Go to Settings > Device Options and look for a Developer Options menu. If it's not there, do the following:
a. Go to Settings > Device Options > About Fire Tablet.b. Tap your Serial Number seven times.c. Return to Device Options. A new menu appears called 'Developer Options.'
- Tap Developer options. (2013 models might call this option 'Security.')
- Set Developer options and USB debugging to ON.
- If you have a Kindle Fire 1st Generation, ADB is enabled by default.
Step 2: Install the Kindle Fire Driver (Windows Only)
- If you're using Windows, download this Kindle Fire driver: kindle_fire_usb_driver.zip.
- After downloading the file, extract the contents into a new folder and double-click the Fire_Devices ABD drivers file.
- Proceed through the installation wizard screens to install the driver.
Step 3: Install Android Studio
ADB is available on your computer when you install Android Studio. If you don't already have Android Studio, download and install Android Studio. If you're not using Android Studio, you need to download and install Android SDK platform tools.
Step 4: Connect Your Fire Device to Your Computer with a USB Cable
Using a USB cable, connect your Fire tablet to a USB port on your computer.
Note that Fire tablets can treat the USB with different transfer options. After connecting the USB cable, swipe down from the top of your tablet to see the USB option used. You might see various notifications, including the USB connection type that was used when you connected the cable. The relevant notification is highlighted in the screenshot below.
If you don't see 'Connected as Media Device', press Tap for other USB options. Then select Media device (MTP). Later Fire OS versions have a different interface here. If you're using Fire OS 7, select File Transfer.
Note: If your USB is connected as a Camera (PTP), Android Studio won't recognize the tablet as a device in Android Studio.If you don't see the USB connection type in the above notifications, go to Settings > Device Options > Developer Options > USB computer connection. Set this to Media device (MTP). For Fire OS 7, select File Transfer.
When the Allow USB debugging? dialog appears on your tablet, tap OK.
Open Android Studio and look for the device to appear in devices drop-down menu:
The device's name will use the
android.os.Build.MODEL
property for the device.KFSUWI
refers to Fire HD 10 (2017) tablet. You can see a list of build model names in the Identifying Fire Tablet Devices.If you have not selected the 'Allow USB Debugging' dialog on your tablet, the name 'Unknown device' will appear in the devices drop-down menu in Android Studio until you allow debugging.
With the tablet connected, you can now run your app on your tablet by clicking the Run App button in Android Studio.
If you run into issues, see the Troubleshooting section below.
Check for Device Connections Using ADB (Optional)
Instead of looking in the devices menu in Android Studio, you can also use some ADB terminal commands to confirm that your device is connected. ADB is useful for performing many other operations as well, such as entering sandbox mode or installing other assets. Follow these two sections:
If you skip adding ADB to your PATH, you can also Check for Connected Devices If ADB Isn't In Your PATH.
Add ADB to Your PATH
First, add ADB to your PATH so you can more easily run ADB commands. (Your PATH is an environment variable used to specify the location of the program's executable. If you don't add ADB to your PATH, running ADB commands will require you to browse to the <Android SDK>/platform-tools
directory to run adb
.)
adb version
from a terminal or command prompt. If you get back version information, then ADB is in your PATH. If the response says adb
is an unrecognized command, ADB is not in your PATH.To add ADB to your PATH on Mac:
Get the path to your Android SDK platform-tools directory:
Open Android Studio and click the SDK Manager button .The location to your Android SDK appears near the top next to Android SDK Location. For example:
/Users/<your username>/Library/Android/sdk
If this is your first time opening Android Studio, there isn't an SDK Manager button. Instead, at the Welcome to Android Studio prompt, click Configure > SDK Manager and provide the location to the Android SDK.
- Copy the path to the SDK and paste it somewhere convenient, such as a text editor.
- Add /platform-tools to the end of the path you copied in the previous step. ('platform-tools' is the directory containing the ADB executable.)
- Copy the full path to your clipboard.
Use the following command to add ADB to your .bash_profile. Replace
<your username>
with your actual username. Also, make sure the path points to your Android SDK.Your
.bash_profile
file is usually in your user directory, which you can find by typingcd ~
(change to your user directory). Then typels -a
(list all) to show all files, including hidden ones.If the file isn't there, simply create one. You can then type
open .bash_profile
to see the paths listed.After you add this PATH to your bash profile, you should see the following in your
.bash_profile
file:(Only instead of
johndoe
, you will see your own username.)Fully restart any terminal sessions, and then type
adb
. If you successfully added ADB to your path, you will see ADB help info rather than 'command not found.'
To add ADB to your PATH on Windows:
Get the path to your Android SDK platform-tools directory:
Open Android Studio and click the SDK Manager button .
The location to your Android SDK appears near the top next to Android SDK Location. For example:
C:Users<your user name>AppDataLocalAndroidSdk
If this is your first time opening Android Studio, there isn't an SDK Manager button. Instead, at the Welcome to Android Studio prompt, click Configure > SDK Manager and provide the location to the Android SDK.
- Copy the path to the SDK and paste it somewhere convenient, such as a text editor.
- Add /platform-tools to the end of the path you copied in the previous step. ('platform-tools' is the directory containing the ADB executable.)
- Copy the full path to your clipboard.
- Click your computer's search button (next to Start) and type view advanced system settings.
- Click View advanced system settings.
- When the System Settings dialog opens, click the Environment Variables button.
- Under System Variables (the lower pane), select Path and click Edit.
Do one of the following:
- On Windows 7 or 8, move your cursor to the farthest position on the right, type
;
and then press Ctrl+V to insert the path to your SDK that you copied earlier. It may look like this:;C:Users<your user name>AppDataLocalAndroidSdkplatform-tools
. Click OK on each of the three open dialog boxes to close them. - On Windows 10, click the New button and add this location.
- On Windows 7 or 8, move your cursor to the farthest position on the right, type
- Restart any terminal sessions, and then type
adb
. If you successfully added ADB to your path, you will see ADB help info rather than 'command not found.'
Check for Connected Devices
Assuming ADB is added to your PATH, run the following commands:
Confirm that the serial number for your Fire tablet appears in the list of devices. For example:
On your tablet, your device's serial number is located under Settings > Device Options.
Check for Connected Devices If ADB Isn't In Your PATH
If your terminal doesn't recognize adb
as a command (that is, you didn't add ADB to your PATH), you might have to run the commands from the SDK directory that contains ADB.
- In Android Studio go to Tools > SDK Manager.
- In the SDK Manager dialog box, copy the Android SDK Location.
Browse to this location in your terminal or command prompt. For example:
Mac
Windows
Then go into the
platform-tools
directory:The
platform-tools
directory containsadb
.Now run the ADB commands as follows:
Mac:
Windows:
The response should list your device's serial number. For example:
If your Fire tablet is still not detected, you may need to reboot your computer or log out and back in for the changes to take effect.
Troubleshooting
Tablet doesn't appear in list of devices in Android Studio
If you don't see your tablet device in the list of devices in Android Studio, click the devices drop-down menu and select Troubleshoot device connections:
Click Rescan devices.
If rescanning devices doesn't detect your Fire tablet as a device, your micro-USB cable might be bad, you might have the wrong USB connection type (e.g, camera instead of media device), or you might not have enabled USB debugging. You can also try restarting your computer and the tablet.
Uninstall the non-ADB Driver (Windows)
If you previously connected a Fire tablet without first enabling ADB on the Fire tablet, you might need to remove the existing USB device driver and force re-installation of the driver. To remove the non-ADB driver:
- Using a micro-USB cable, connect your Fire tablet to a USB port on your computer.
- On your computer (Windows 10), click the search button (next to the Start menu) and type Device Manager in the search. Then select it in the results. (Other Windows versions have different options for accessing the Control Panel.)
- In the Device Manager window, expand Portable Devices.
- Right-click the Fire device and then click Properties.
- In the Properties window, on the Driver tab, click Uninstall, and then Confirm.
- Unplug your Fire tablet from your computer.
Confirm the Fire Driver Is Installed Correctly
You can confirm that the Fire driver is installed correctly by doing the following:
- On your computer, click the search button search button (next to the Start menu) and type Device Manager.
In Device Manager, under Fire Devices, verify that that a device appears called Android Composite ADB Interface.
If your Device Manager shows an Other Devices section with a second Fire device with a yellow alert sign, your computer is listing Amazon's unrecognized ADB module as a separate device. To fix this issue:
- Under Other Devices, right-click the Fire device and select Properties.
- On the Driver tab of the Properties window, select Update Driver…
- Choose to browse for the driver software, then navigate to Let me pick from a list of device drivers on my computer > Show All Devices > Have Disk.
- Navigate to the folder where you installed the Amazon driver (typically
C:Program Files (x86)Amazon.comFire_DevicesDrivers
) and select it. Ignore the warning regarding installing drivers and proceed.
You should now correctly see your Fire tablet with the ADB driver installed.
Last updated: Oct 29, 2020
Overview of USB Device Is Not Recognized Error
'My Sandisk USB flash drive is not recognized when I plug it into my laptop. Is there any way to fix USB flash drive not detected and restore the data. I have all my school work on it. Please help if you know any solutions.'
Like the user above, many users, including you now, have encountered the issue 'USB flash drive not recognized or detected' when they connect their USB device to a computer. Actually, many factors could trigger this issue, including:
- USB connection issue
- File system errors that make your USB become RAW
- Drive letter issues
- USB driver error
- Hardware damage
Although all the causes can lead to a USB flash drive not being detected by the computer, the USB will show varying status in Disk Management depending on the cause. Thus, to fix a USB flash drive that is not recognized by your computer, you first need to check the device in Disk Management and then repair it according to the reasons. Sknet sound cards & media devices driver download for windows 10.
Check The Causes of USB Flash Drive Not Recognized
Keep your USB flash drive connected and check it in Disk Management.
Step 1. Right-click 'This PC' and choose 'Manage'.
Step 2. Go to 'Disk Management'.
Step 3. Then you will see your USB flash drive in one of the following situations:
- The USB shows as RAW
- The USB shows as unallocated space
- The USB shows without a drive letter
- The USB is not showing up in Disk Management
After identifying the specific situation, you can now apply the corresponding solutions to fix the USB flash drive that is not recognized.
Fixes for USB Flash Drive Not Recognized/Detected
If you're not in one of the scenarios above, you can also apply the tips detailed below to have a try.
Fix 1. Recover Files from RAW USB Drive before Formatting
Applies to: Fix USB becomes RAW.
There must be file system errors on your USB flash drive that make your USB device not recognized as RAW. It could be file system missing, corrupted, or not compatible with Windows.
To repair a RAW USB, all you need to do is to recover data from the USB that is not recognized and then convert RAW to NTFS or FAT32 file system by formatting. Formatting will erase the existing data on your USB stick. That's why you need to perform data recovery first.
To retrieve data from an inaccessible device, you can use the professional disk recovery software - EaseUS Data Recovery Wizard. It perfectly supports deleted file recovery, formatted data recovery, RAW partition recovery, and other data loss situations.
To recover data from the RAW USB:
Step 1. Choose the flash drive to scan.
Launch EaseUS Data Recovery Wizard and choose your flash drive where you lost important files. Click 'Scan' to start.
Step 2. Check and preview found flash drive data.
After the scanning is finished, you can quickly locate a specific type of file by using the Filter feature as well as the Search.
- Filter: A quick way to your wanted files.
- Search: e.g. File name/file extension.
Step 3. Restore flash drive data.
After checking and finding lost flash drive files, select them and click Recover to restore. You shall save the found files to a safe location on your PC rather than to your flash drive.
After retrieving all the files, you can now format the USB flash drive and assign a new file system to the device, which will make it usable again.
Fix 2. Update Unallocated USB Driver and Create New Partition
Applies to: Fix USB shows as unallocated space.
If your USB is not recognized by the computer and becomes unallocated space, it probably results from outdated USB driver. Thus, you should try to reinstall the USB device driver.
Step 1. Connect the USB flash drive to the PC
Step 2. Navigate to 'Control Panel' > 'System' > ‘’Device Manager' > 'Disk drivers'.
Step 3. Find and select your USB device, right-click and first choose 'Uninstall' and then choose 'Scan for hardware changes' to refresh the drivers.
Step 4. Restart your computer.
After all the operations, you may find USB not recognized issue is fixed and the flash drive is detected. If reinstalling the USB driver doesn't help, you can recover data from the unallocated space with EaseUS Data Recovery Wizard introduced above and then create a new volume to make it ready for data storage. (The unallocated space will show up as 'lost partition' in EaseUS data recovery software. Choose the right partition to scan and then recover your data.)
To create a new volume on unallocated space:
Step 1. Go to 'This PC', right-click it and choose 'Manage' > 'Disk Management'.
Step 2. Right-click the unallocated space and choose 'New Simple Volume'.
Step 3. Follow the wizard to finish the remaining process.
Fix 3. Change USB Driver Letter to Make It Detectable
Applies to fix: USB shows without driver letter.
Another reason for USB flash drive not detected issue is that the drive letter assigned to the USB drive is occupied by another drive on the computer (or the drive letter on the USB is missing). To solve this problem, you just need to try EaseUS free partition software to assign an unused drive letter to the USB flash drive. It will help you fix the 'USB flash drive not recognized' issue and recover all the inaccessible data with ease.
You can also assign a drive letter to your USB in Disk Management.
Step 1. Keep your USB connected. Right-click 'This PC' and choose 'Manage' > 'Disk Management'.
Step 2. Right-click the volume on your USB flash drive and select 'Change Drive Letter and Paths'.
Step 3. In the new window, click 'Change'.
Step 4. Assign a new drive letter to your USB and click 'OK'.
Fix 4. Check USB Port and Change Connection to Make USB Recognized
Applies to: Fix USB isn't showing up in Disk Management
If your USB flash drive is not detected by Disk Management at all, it's likely that:
- The USB is not connected properly
- There are driver issues
- Your USB device is physically damaged
Therefore, you can first connect your USB connection including:
- Change the USB port/cable
- Connect your external hard drive or other storage devices to another computer and check whether the problem remains
- Connect your USB drives to the rear port which provides a more stable power supply compared to the front ones
Then reinstall drivers (detailed above). If these tips don't help, you should consider sending the USB flash drive for repair.
The Bottom Line
When a USB flash drive is not recognized by the computer, there are varying causes. Once you can find the reason, you can easily make the decision on how to fix it. Besides, this issue also reminds you of the importance of growing a good habit of using your USB stick, like ejecting the device before disconnecting it and backing the device up regularly. I hope one of the solutions above could help to fix your USB flash drive that is not recognized or detected.
FAQs About USB Flash Drive Not Recognized or Detected
Besides fixing USB flash drive is not recognized error and bring lost files back, some users may also want to know the causes of USB flash drive not showing up, and how to repair the USB drive, etc.
If you are interested in these questions, follow on and you will find a satisfying answer below:
1. Why is my USB flash drive not showing up?
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If a driver is missing, outdated, or corrupted, your computer won't be able to load your USB drive. USB driver issue, drive letter conflicts, and file system errors, etc. may all cause your USB flash drive not showing up on Windows PC.
You can update USB driver, reinstall the disk driver, recover USB data, change USB drive letter, and format USB to reset its file system. For a detailed guide, you can refer to USB Not Showing Up in Windows 10/8/7 for help.
2. How can I repair my USB flash drive?
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USB flash drives can become corrupt or damaged for a variety of reasons. Luckily you can fix your USB for free.
Windows chkdsk and Windows disk error checking are able to repair errors on your disk from the command line. Afterward, with EaseUS data recovery software, you can get your data back from a failed pen drive without losing files.
For a detailed guide, you may refer to USB Flash Drive Repair Tool for help.
3. How can I recover my USB flash drive that is not recognized?
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As recommended on this page, when your USB flash drive, pen drive or external hard drive becomes unrecognized, you can get rid of this issue with the following steps:
Step 1. Check USB status in Disk Management:
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- The USB shows as RAW
- The USB shows as unallocated space
- The USB shows without a drive letter
- The USB is not showing up in Disk Management
Step 2. Fix related error on the USB drive and make it recognized:
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- 1. Recover files and format RAW USB.
- 2. Update unallocated USB drivers and create a new volume.
- 3. Change the USB drive letter.
- 4. Check USB port, change USB connection
- 5. If none of the above fixes work, take USB to a local device repair center for manual repair.