Repair for sony cassette player model WM-3. When I plug it into a powersource, the red light goes on but the cassette doesn't play.Can you fix it ?

SOURCE: Sony Walkman NWZ-B105F MP3 wont connect

I first found that when I plugged my player into my computer it registered it as a MTP (Media Transfer Protocol) device and in turn never showed up as a storage device on my computer. I fixed this by going into my Control Panel -> System Icon -> Hardware Tab -> Device Manager button.

Clicking on the "System Devices" tab should have "Walkman" or MTP device. Right click on it and go to properties, now before doing anything it should say "Location -- ------ Location 0 (Walkman)" if not try unplugging the walkman and see if the MTP device you're looking at is removed from the list, just to make sure it's the right device we're looking for.

If you've confirmed it's the Walkman, click on the "Driver tab" and click on "Update Driver...". Then click on the "Install from a list or a specific location (Advanced)" option and click "Next". Now select the "Don't search. I will choose the driver to install." and click next. It should now bring up 2 driver choices, one being "MTP Device" and the other "USB Mass Storage Device". Select the USB option and select next, it will then install your walkman as a USB storage device and after that's done. It should be a matter of unplugging and plugging the Walkman back in and it should show up on your storage options in "My Computer"

SOURCE: Sony Walkman - Digital Music Player NWD-B105F

I had the exact same problem with my girlfriends sony nwd-b105 mp3 player. I fixed it by downloading the firmware version 1.2, which can be found here at the sony support link below.

http://support.sony-europe.com/dna/wm/nwf/nwf.aspx?site=&m=NWD-B105&site=odw_en_GB&odw_model=NWD-B105

- Backup your mp3 files
- Make sure your mp3 device is NOT plugged in
- Run the firmware executable
- When it asks for it plug in the mp3 device
- Check option: format data area
- Press Start
- When finished, take the mp3 device out and press the power button
- If everything went well it is creating a database again and will function correctly as usual
- Copy your mp3 files back to the mp3 device
- Enjoy your music again!
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SOURCE: MTP DEVICE Sony 4gb walkman NWZ-S616 not installing

if you have a problem about MTP Device and wont be able to show in your "My Computer", here are tips that may help you fixed your problem:

*First- Uninstall the MTP Device Driver in your system.(Right click My Computer then manage, then click Device manager at the left part, then after that, find MTP Device in your right part, then click and Right click the name of your MTP Device then uninstall.)
*Second- Reconnect the device and then after a pop-up show which says, New hardware found,
click install the driver in a specific location, then choose the bottom option and then choose
Storage Device.
*Lastly- Turn On your Device and search it in My Computer.

that's all, and i hope i do a little help to you!


Mark Anthony Quintana

SOURCE: Media Manager for Walkman 1.2 does not recognize Sony NWZ-S615F

look up here: http://www.sony.com.my/support/faq/1169186/product/nwz-e435f/print

SOURCE: Sony Walkman NWD-B105F, Creating Database

try using sonic on your computer.