Question about TwinMOS Technologies MP3 USB S21 256 Mb key 256 Mb MP3 Player

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Usb mp3 player

I bought usb mp3 player 512 Mb from local supplier in India. But there is some problem now. When i connect it to Pc it detects the drive but shows 0 Mb free and 0 mb used. When ever i try to open it it gives message not accessible.I even tried to format it but it also failed. Is it fixable error or i will have to throw away my player. Please help me out

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Re: usb mp3 player

Hey dude this is myself too has got a same set of problem as i connected my USB mp3 player to net one day, sure u cud have got the malware hooked up to your drive, so just download latest patchesof ur antiviruses and hook to quantrinate the drive, then try using some format tools from and format it. defrag it and then check ur system for viruses, then when all done ok, mailme !

Posted on Jan 25, 2008

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Re: usb mp3 player

You have to thow it away. Sorry. But the storage on your MP3 player is corrupt. This happens alot with USB devices.. Specially Thumbrives and mp3 players.

Posted on May 24, 2007

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I cannot access the music on my Samsa M230 via USB to PC. I would like to copy the music off the sansa and add new music, but windows media player doest show any music files on the m230 drive


There are 2 modes the player can connect to a computer:
1. MSC mode: the operating system, seeing the player as a removable disk on "My Computer"
2. MTP mode: added software, when an extra program is started the player is detected in this application software: e.g. Windows Media Player

When songs show up on the player but not on My Computer:
1. The player is in MSC mode and music has been put on the player with a program in MTP mode
2. The player is in MTP mode and music has been put on the player
using Windows Explorer in My Computer in MSC mode

In your case the solution should be:
Switch the player into MSC mode and look in Windows Explorer for
a driver letter with a capacity of about 512MB memory.

How to get the player in MSC mode:
Using the menu on the player:
From the main menu go to Settings Menu > USB and select MSC mode.
Using the hold switch on the player:
1. Turn device OFF.
2. Facing the hold switch slide it to the right so an orange color would show putting the device on Hold.
3. Connect the device to the PC.

Explore "My Computer", looking for the players content showing up as a drive letter (about 512 MB sized for the m230)
Click the drive letter, select your files and "copy + save" or "drag and drop" them to a location on the computer.

When needing more help, just post a comment.

Dec 30, 2009 | SanDisk Sansa m230 MP3 Player

2 Answers

Joybee 130 MP3 plaer

Plug your player into your computer via USB. If Windows recognizes it, a new drive should show up under "My Computer". It may be called "Removeable media". It may be some letter like "G" or "H". If you have an SD card bigger than 512 MB, then find the removeable drive that is bigger than 512 MB that shows up when you plug in your MP3 player and that drive is your SD card.

May 02, 2008 | BenQ Joybee 130 MP3 Player

2 Answers

Cannot transfer files

go to

download the updater. unzip the file and run the installation program. after you have install the iriver firmware updater, run the program. it will automatically detect what you need. follow the instructions. if the updater stops at 50% don't worry. wait bout a min or 2 then unplug your T30 and it will update by itself

Dec 07, 2007 | iRiver T30 MP3 Player

6 Answers

My mp3 player doesn't player

Use SonicStage to transfer music files. This can be downloaded fromthe internet.

Dec 05, 2007 | Sony NW-E002 MP3 Player

9 Answers

Sony digital mp3 audio player software problem

i have walkman sony digital mp3 player by model no. NWD-B103, I am misiing below error

Dec 02, 2007 | Sony Network Walkman NW-E005 MP3 Player

1 Answer

MP3 I/O error

well , my friend the first you must try is download an upgrade from the manufacturer site,this can solve your problem.

Jul 11, 2007 | Creative Labs Nomad MuVo TX MP3 Player

1 Answer


sandisk have a upgrade to fix connection problem download, install it ,plug it and upgrade it via internet. works for me.

Mar 14, 2007 | SanDisk Sansa m230 MP3 Player

1 Answer

Not Connecting

save your music in the folder "player" then the mp3 will work

Jan 18, 2007 | Panasonic E-Wear SD SV-SW30 256 MB MP3...

5 Answers

Problem in pen drive/mp3 player capacity

when you hook it up to the puter, go into My computer right click on the removable drive then click on explore disc and see what oter types of files are taking up the extra memory as if there are none then the drive has bad memory cells.

Apr 28, 2006 | Sony NW-E405 MP3 Player

1 Answer

Internal 512 is invisible

There is a switch on the SD card that allows you to lock it. Check if the switch isn't on the "locked" position, that might be what's making its content inaccessible. Hope this solves it!

Feb 14, 2006 | BenQ Joybee 130 MP3 Player

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