The probability of buying a new mobile hard disk is not high. In addition, it should be noted that the hard disk has been formatted when it leaves the factory, unless it is repaired or for other reasons.

Increase the power supply current of USB port

If there are two USB pins at the PC end of the data cable, insert them into the USB socket on the front panel of the chassis to increase the power supply current of the USB port; If there is only one USB male connector on the PC side of the data cable, it is directly plugged into the USB socket provided by the motherboard on the back of the chassis, which is also to increase the power supply current of the USB port.

Observe hardware identification

Observe the installation of the driver after hardware identification after USB connection, and pay attention to whether the indicator light on the mobile hard disk box flashes (indicating reading and writing operation), and listen carefully to the sound of hard disk rotation-whether there is an abnormal sound of "click ……".

Borrow a transfer card from a friend.

If not, ask a friend to borrow a 2.5-to-3.5 adapter card (with external power supply) to see if there is anything wrong with the hard disk itself.