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    Technology Manager of Test Dept.
 

Summary
Learn practical methods to solve the error "seagate hard drive light on but not detected". And alos, you can find how to recover the lost data in this article.



Seagate hard drive light is on but not detected

I. How to solve the problem that the Seagate external hard drive light keeps flashing but cannot be read?

1. Restart the computer equipment

To resolve a failure with your external hard disk device, the simplest solution is to restart your computer. But before doing so, it’s important to safely disconnect the Seagate external drive from your computer. After that, turn off your computer and wait for a minute before turning it back on. Once it’s back on, reconnect the Seagate drive and check if the issue has been resolved.

2. Replace the USB port or USB data cable

Sometimes, the failure of an external hard drive can stem from a faulty USB port or a damaged USB cable. At this time, you may wish to try to connect the Seagate external hard drive to another port of the computer, or replace the USB cable to try to solve the problem.

3. Check whether the Seagate external hard drive is a hidden device

When the Seagate external hard drive is a hidden device, it cannot be read. The solution is to check whether the device is a hidden device. The specific steps are as follows:
Step 1: Run the computer, enter (Device Manager) in the search box in the lower left corner and open it. Next, switch the function menu to the (View)-(Show hidden devices) option.
Device Manager show hidden devices
Step 2: After that, you can check whether the icon of the Seagate external hard disk is gray in (disk drive).

If the icon is gray, it means that the device is hidden. At this time, right-click the device and select the option (Uninstall device) to operate After completion, restart the computer, reconnect the Seagate hard drive to the computer, and check whether the problem is resolved.

Uninstall Device

4. Update the driver of the external hard disk

The method of updating the external hard disk driver is relatively simple, and it is also to enter the device manager to operate. Specific steps are as follows:
Step 1: Run the Windows computer, connect the Seagate external hard drive to the computer, and then press the (Windows+R) keys on the keyboard at the same time to open the running window. After entering the command (devmgmt.msc), click the (OK) button to enter the Device Manager.
run the command devmgmt
Step 2: Next, in (Disk drives), right-click the Seagate hard drive that needs to update the driver, and select the (Update driver) option.
update driver-disk
Step 3: Next, select the (Search automatically for updated driver software) option, and then follow the instructions in order to complete the update of the hard disk driver. After the driver update is complete, check to see if the problem is resolved.
update Driver Confirm

5. Change the power management settings of the USB root hub

The USB root hub serves as a mediator for data transfer and power supply between the computer and external hard drive. However, the Windows system typically has the USB root hub enabled by default, which can disrupt the connection and data transfer between the two devices. To resolve the issue of the Seagate hard drive constantly flashing without reading, we can disable the option to “allow the computer to turn off this device to save power.”
Step 1: Turn on the computer, find the (Device Manager) application in the search box in the lower left corner and open it. Next expand the (Universal Serial Bus controllers) option.
Step 2: Right click on (Generic USB Hub) and click on the (Properties) option.
Universal Serial Bus Controllers
Step 3: After that, in the USB Root Hub Properties window, cancel the (Allow the computer to turn off this device to save power) option, and click (OK). Restart your computer to see if the problem is resolved.
Allow the computer to turn off this device to save power
The aforementioned methods are commonly used to address the issue of Seagate external hard drive flashing light while not reading. In reality, hard drives are prone to data loss due to failures. If you are facing data loss, the following methods can help you retrieve the data from your hard drive.

II. Using Renee Undeleter to recover lost data in Seagate hard drive

1. What is Renee Undeleter?

Renee Undeleter is a software specially used to restore various data files. When you accidentally delete important files by mistake, empty the recycle bin, or format SD card/disk/external hard disk, you can use this tool to recover lost files data recovery. This software covers four functional modules, including file recovery, format recovery, partition recovery and image creation, so it can help you solve many data loss problems that may occur during system use in an all-round way, which is very convenient.
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Image creation Create a partition image to read and back up data;

Supported devices SD card, SDHC, SDXC, USB flash drive, hard disk and computer.

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Multiple scan modes Fast partition/whole partition/whole disk scan;

Supported devices SD card/USB/hard disk.

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2. How to recover lost data from hard disk with Renee Undeleter?

It is very simple to restore hard disk data with Renee Undeleter. The specific operation steps are as follows:
Step 1: Connect the Seagate external hard drive to the computer, download and install Renee Undeleter on the computer, and run Renee Undeleter.

Do not install it on the disk that needs to recover data to avoid data overwriting. Then select the (Whole Disk Scan) option in the main interface, this option can scan all partitions in the hard disk. If you need to quickly scan the hard disk, you can choose (Fast Partition Scan) or (Whole Partition Scan).

select whole disk scan to scan disk in renee undeleter
Step 2: Next, select the Seagate hard disk device that needs to recover data, and then click (Next).
select a disk to recover in renee undeleter
Step 3: After that, the software will analyze the hard disk device. After the analysis, a prompt window of “Select the partition you need to scan” will pop up.

You can select the corresponding partition according to your needs. longer. After scanning, you can double-click the file in the preview window on the right to preview it, then select the file you want to restore, and click the (Recover) button in the lower right corner to restore the selected file.

select taget files to recover with renee undeleter
Step 4: Next, select the target folder, click (Browse) to select another disk to save the recovered files, and then click the (Recover) button to start the file recovery, you just need to wait patiently.
recover files from whole disk scan with renee undeleter