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Mac won't recognize usb drive
I devised these simple steps that tend to remedy quite a few issues with most USB portable / external hard drives and devices (though not always)
A few things to check but assumes USB and Windows for other interfaces / operating systems similar steps may be adapted to suit.
1. Ensure it is connected directly to the computer to a USB 2.0 port not a USB 1.0 port as this can have effects on performance and reliability
2. Use only the cables that came with it NOT one that fits that may have been lying around or is longer. Not all USB cables are equal even though they should be)
3. Do not connect through an external USB HUB unless that hub is USB 2.0 AND has its own power supply.
4. Use ONLY the power supply that came with it if it has an external power supply Don’t use any other unless you know it has both the same voltage and current rating e.g. 12V 500mA anything rated below that would not work properly.
5. Always use the same port for connecting your devices. Some devices do not like being switched about. If switched they may want to install software / drivers again. This can be especialy true if you move a HUB to another port
If you checked and fixed anything there and still have issues then check your hardware from CONTROL PANEL / SYSTEM / HARDWARE.
Any exclamation marks by hardware need fixing before you investigate any further
For MAC users I am sorry but apart from the above steps that is all I can offer.
on Sep 01, 2009
Memorex External Floppy Drive Troubleshooting Forum
is this a dvd re-writer or a external floppy drive as advertised?
if its to copy dvds, install nero on the machine, then download a program called dvd shrink its free and can be found on google, put film in the drive, run dvd shrink, click backup, it rips it to c:\ then disc pops out and you put in blank dvd and :-) its done..
hope i have guessed what you mean correctly ..
All the best
on Mar 13, 2007
external 2.5": HDD .
yes and no. (no means PnP is magic)
but no PC stated, and posted to computers not TV nor Cell phones.
so in windows world of PCs we have internet working first
and then plug and play can actually work.(function).
then on your unstated PC try all USB ports, some crummy old laptops have only 100mA of current on USB ports and fail to run the motor with weak power like that.
NO PC stated. see?
The next thing I do with USB connected, is listen to side of case for the motor inside to spin, if silent that means the USB port is dead. (or drive is dead but I test the drive on other PCs so know it is not dead.)
ok it spins.
then disk manager is next, go there, and give it a drive letter.
if not done this step , explorer can't see the drive.
above manager can not see the drive, then use Device manager.
if missing there?, this external drive the USB port is dead or Microsoft does not support this drive or the drive is dead.
learn to test devices like this on 2 PCs to learn If it is good or not first. no lack of PCs on earth so have at it.
on Jul 03, 2019
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