|I have never heard of, and can't find, any internal Philips hard drives.|
They DO currently make and have made optical (CD , DVD) drives, flash drives, memory cards, etc.
An internal hard drive MAY have Philips labeling on it, but it was NOT made by Philips, and it probably also has the actual manufacturer's model on it
They did make EXTERNAL hard drives until recently, but the hard drive inside the drive was not made by Philips.
If this is an external drive connected via a USB connection.....
(similar applies for firewire connected drives)
Troubleshooting USB device problems including for flash drives, external drives, memory cards.
See Response 1:
Check that out first.
Rarely, not all the ports on the back of a desktop case may be able to supply 500ma each.
If you have a desktop computer, Note that I answered a Topic on this site where a guy had an external drive, which does require the full 500ma, connected to a port on the back of a desktop case - it would not work properly when a webcam was in the port next to it, but it worked fine when the webcam was unplugged. Ports on the back of a desktop case often have two ports connected to the same USB controller module that are ports one above the other - you could try connecting the cable to one of those and leaving the other un-used.
Examine the USB port and the plugs on the USB cable you're using to to see whether they're damaged.
E.g. Bent - such that the fit of the plug is loose - stretched outer metal shell in the port, squished metal outer shell on a plug; bent or loose contacts in the port or plug, the plastic blocking plug that prevents you from plugging in a USB plug upside down is loose or missing.
If you do have an external drive, the above info should help you solve your problem.
Philips external drive support.
Country/Language (for where the product was sold in)
PC Products and Phones
Drives and Storage
under Can't find your product ?
Go to support
PC Products and phones
Drives and storage
External hard drives
If you don't see your model - it may be a multi-page list - at the bottom of the list, click on Also show products sold outside (country)