1. If you buy the hard drive from our company, but it can't be recognized by our

    DVR/NVR system, please follow up the below steps to check it:

A.  Please switch another working 12V power supply to connect the DVR/NVR system to try.

B. Please disassemble the rear cover of the DVR/NVR to check if the power wire and

data wire of the hard drive are connected well, you can re-connect them to try.

C. If the wires are connected well, but the hard drive still can't be recognized, please

remove this hard drive from the DVR/NVR, then install it to your other device (DVR,

NVR, or computer) to test if it can work normally.

If you have another working internal hard drive, you can also install it to the DVR/NVR

to test.

D. If these can't help you, please contact us and provide us your order number / order

ID, and help to confirm the model number of your DVR/NVR, we will find a best solution

for you.

2. If you buy the DVR/NVR from our company, and buy the hard drive from

another company, but it can't be recognized by our DVR/NVR system, please

follow up the below steps to check it:

A. Please tell us the brand, model and some specs of your hard drive.

It will be better to take some photos of your hard drive to us, or send us the link of your

hard drive.

B. Please check if the power wire and data wire of the hard drive are connected well.

C. If the wires are connected well, but the hard drive still can't be recognized, please

remove this drive from the DVR/NVR, then install it to your other device (DVR, NVR, or

computer) to test if it can work normally.

If you have another working internal hard drive, you can also install it to the DVR/NVR

to test.

D. If these can't help you, please contact us and provide us your order number / order

ID, and help to confirm the model number of your DVR/NVR, we will find a best solution

for you.