Sony Walkman NWZ-E438F Not charging

SOURCE: sony walkman nwz-s18f froze

I had this problem a few days ago and now my sony nwzs18f has different problems, the way i got it to charge back up was by using a usb charger that plugs into a socket rather than into your computer this should hopfully charge it back up and also it should unfreeze the screen.

hope this helps

SOURCE: 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.

SOURCE: mp3 will not connect with my computer

I had the same problem. Don't buy a new cord. There is a sony place in winnipeg you can get it fixed there.

SOURCE: Sony Walkman (NWZ-E438F) won't turn on

It sounds like you followed the directions, so the device may be defective.

Your laptop's USB port has enough power to use other similar devices? If so, I'd take it back for an exchange.

By the way, it's a great device, so don't give up yet!

SOURCE: NWZ-B135 stuck on 'Walkman' logo, but won't go to play mode.

U need to upgrade the firmware,you need to download the firmware from here: http://support.sony-europe.com/dna/downloads/firmware/firmware.aspx?site=odw_en_GB&m=NWZ-B135&f=FRM_NWZ_B13x_f after downloading,run it and then connect the player to system while holding the "volume -" button...it should be detected and the firmware would be restored.