Question about RCA OPAL M4001 MP3 Player

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Help please When I plug my mp3 player to my computer through a highspeed hub the player says usb connected, but the computer is saying that the devices weren't installed b/c a service installation section in this INF is invalid

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Re: help please

I find that pushing the reset button works usually, and does not lose data.

Posted on Aug 14, 2008

Re: help please - RCA OPAL M4001 MP3 Player MP3 & Digital Media Players

My rca opal want come on when i charge it

Posted on Dec 27, 2007

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My sony nwz e 436f says that I need to charge it but when I plug it into charge, it says Battery full.

I think you are using a USB-Hub. Connect the player directly to the computers USB port. See the manuel on page 100 (English version)

Nov 20, 2010 | Sony NWZ-E436F MP3 Player

1 Answer

Will not connect via USB hub

I am guessing that the usb hub is not powered. Most usb charing based mp3 players require a certain amount of power in order to be used on the computer or charged by it. I would recommend plugging it into a direct port or buying a powered usb hub.

Jan 14, 2010 | SanDisk Sansa e250 MP3 Player

1 Answer

My computer says the USB port connected to my mp3 is drawing too much power and has shut down the USB port. How do I get around this? I have a MacBook Pro.

It look that your player is drawing too much current from your Macbook Pro: it is rather unusual nowadays but does happen even with some USB external 2.5in drives!
1) Buy a USB Power Adapter Y cable that plugs into 2 usb ports on your Computer an thus allows double the current (shop around as they are expensive on Amazon but pretty cheap on Ebay)
2) Plug your player via a 'Powered' USB Hub that can provide higher current (from its 'own AC/DC power pack') to each USB port on the Hub

Hioe it helps!

Dec 28, 2009 | SanDisk Sansa Fuze MP3 Player

1 Answer

Walkman will not charge

Whenever I plug my Walkman into my USB hub, which is connected to my desktop, it too says it's battery is full after just a few seconds. I plugged it directly into my laptop, and it took a charge as normal. Then I plugged it into a different USB port on my desktop, and it again took a charge as normal.
So, if you are using a USB hub, try plugging the Walkman directly into one of the computers USB ports, you may have better luck.

Mar 26, 2009 | Sony NWZ-E438F Digital Media Player

2 Answers

Ipod wont show up on itunes

In order to get an Ipod to work on your computer never plug it into a USB hub. The hub does something to the power of the device that causes it to not perform, be recognized, or charge. Find a spare USB port to plug it in and see if it will find it.

USB hubs do not work on external hard drive devices. Jump drives will work on a hub

Jun 05, 2008 | Apple iPod MA446LL/A MP3 Player

1 Answer

HUB power exceeded on MP3 Player

It sounds as if you have too many USB items plugged in at the same time.

When you connect a device to a computer via USB, the device draws its power from the computer. There is only so much power the computer can supply, and if you connect too many devices it can cause problems (hence the error message).

I would suggest that you disconnect any USB items that you are not actually using. If you are unable to do this, it might be necessary to by a USB hub with it's own external power supply.


Mar 02, 2008 | MP3 & Digital Media Players

1 Answer

Computer wont read mp3 player when connected

well i would invest in a hub carrier with it own power sorce 2.0 recomended this should solve your problem well i no it will just go to any com shop and ask for a 2.0 hub or internal usb ports but i must stress it needs to be 2.0 or moor

Feb 25, 2008 | Apple iPod shuffle MP3 Player

1 Answer


Get a clean version of the software from Samsung website, or try a different usb port

Sep 23, 2007 | Samsung YP-K3 MP3 Player

1 Answer

Power sugre with m240

Hi there. This message would indicate any one of the following: 1. You have a lot of USB devices plugged in to your computer, and the maximum power supply for the USB ports has been exceeded by plugging this player to your computer. It would be best if you unplugged 1 or 2 of the USB devices connected for the time being. 2. You are plugging the player on your front USB port, and may need to plug it in the rear USB port to acquire ample power supply (front USB ports do not get as much power as the rear USB port -- sad but true) 3. You are using a laptop and may need to try another USB port on that computer. Purchasing a self-powered USB hub would be ideal as it gets its power supply directly from the wall electrical socket.

May 11, 2007 | SanDisk Sansa m240 MP3 Player

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