How to recover data from external hard disk which is not detecting

How can I recover data from non detecting external hard drive?

Follow these steps to back up and recover data from an external hard drive that's not recognized:.
Download Disk Drill and open it..
Click Drive Backup..
Select your external hard drive, then click Byte-to-byte Backup..
Choose where you want to store the backup, then click OK..

Can files be recovered from a failed external hard drive?

Typically the data stored on an external hard drive is only stored there as a backup, meaning that if the drive fails, the data can usually be recovered from its secondary storage space.

Why I Cannot detect my external hard disk?

Different situations of Hard Disk have not detected errors The USB driver has become unstable, outdated, or corrupt. USB ports become faulty, damaged, or broken. Partition issues on your external USB device. The USB device is malfunctioned or damaged.