wd external not detecting in lenovo

[adnisya9798]

my WD external hard disk USB 2.0 not detect on any pc or laptop. i hace change the usb port but still not working. i use easeUS database recovery but still not found my file that i want. please help me

 

[Saga Lout]

It must have a separate power supply so does that show any signs of life?

Does the disk spin when you power it up? You should either be able to hear it or feel it vibrate when you touch the case.