Computers no longer recognize device. unknown device or nothing at all. green light on showing that there is power on the unit itself

Hi even i am using the same ZTE warp phone, even i was not able to receive calls are make calls , my phone was getting freezed, even i visited the ZTE warp boost store, they failed to fix the repair, they informed to to contact customer care, when i called customer care regading this information , they took my e-mail address and my information and they informed me that to upgarde the software, so the software link has benn sent to my mail, then later i upgarded my phone , my problem was solved, so i would suggest u to contact customer care

Most of these problems are associated with an I.C. on the board that governs the HHD. Unfortunately, the chip gets pitted (overheats) on the GaAs and is ruined. The green light (LED) on the HHD will turn on as it is getting power but the main chip that controls the HHD no longer works thus rendering the HHD inoperative.

Bottom line, get a new external drive. Should you get the same model or something similar to what type of electronic hardware you have, you can remove the new HHD and put your old HHD in its place and you will see that all of your data is still intact.

Turn on the unit and than it will be recognized by the computer. The green light will light with the system in the off position as it indicates the unit is charging recieving power, just press the on button and the display should come alive.

If you have an SD card in then remove it and try to boot it up.

It is possible that the SD card is corrupt or faulty.

If it does not power up with no SD card then it may well need to go in for repair.

Should you get it to boot without the SD card then back it up straight away.

Reformat your card (preferably in a card reader) and then restore to the card . You should then be able to put the card back in

re install/repair the software

I assume you have look at the Microsoft Knowledgebase article?

You can also check this troubleshooting article.

You might need to force reinstallation of some devices, the external HDD at least, but maybe also the USB controller device in the Device Manager.

Worst case scenario, open the disk and connect the HDD internally (IDE/SATA depending on the interface).

Jules

Most likely the pendrive is no longer working. The simplest way to check that, is to try it in another computer and see if it's recognized. If this is the case then the USB ports on your computer are not working which I doubt.
If it is seen as unknown device that means that the electronics in the flash drive got bad and it is unrecoverable.

please update the USB Drivers and if that Doesnot Work then Update the BIOS of you Computer from the Manufacturers Web site

Green light is on mine, but USB port shows no device. When I plug it in, I get "found new device" message, but no icon on my desktop. None of my messengers recognize it either. It does show up in cameras and scanners though...I'm so confused.

Hi,

The USB Isn,t supplying/providing enough Power to the device.
Search e-bay or similar for a 2 into 1 USB Cable.
Then power the unit with 2 USB Ports on the Computer.
2 x USB Into 2 x Sockets On P.C. 1 x Into Device Drive.
This will be enough power to operate the Device Correctly.

I,ve done this on several external Drives, never failed for Me.

Mike @ compurepair.