I have input my mp4 in my friend's lap top one days .the day after i recharged bec it was nearlly empty.I realised this time the screen indecating the recharging have changed but i didnt care much.after recharging i tried to add files on my mp4 but I couldnt find the hardware installed .when i opened the device manager to try to install again.the computer couldnt.and i had a screen telling my to reconnect to to a hi-speed usbhost controller regarding that it is not my first time to add files on my mp4 it is nearlly the 4th time????

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Anonymous

4 Answers
Posted on Mar 25, 2009

SOURCE: Device unable to start on computer- Sony walkman NWZ-B135F

hello everyone. i encountered the same problem. after i unplugged themp3 player the screen hung/froze showing only the sony walkman logo. iused the reset feature numerous times, but no luck (initially.)

ima linux user (ubuntu 8.10) and the sony mp3 player NWZ-B135F is in factCOMPATITIBLE with the Ubuntu Linux operating system. i triedlinux suggested solution mentioned in another thread.i let the power drain completely. however after the whole "ithung/froze" incident, even linux was not able to read the usb device.it wouldn't turn on and it wouldn't charge at all. so to troubleshootthis issue i used the Windows XP prof. OS which was able to detect thethe sony mp3 player when plugged into a usb port. but mind you, the mp3player device was not appearing under "my computer"

i downloaded the FIRMWARE for NWZ-B135F found on this page below:

http://esupport.sony.com/US/perl/swu-list.pl?mdl=NWZB135F&SelectOS=7#div_pos_30

afterrunning this program, the Windows XP prof. OS clearly detected the mp3player device and it now appeared under "my computer" as a removabledisk. (at this point, the sony mp3 player lit up and it started tocharge again) i reformatted the sony mp3 player memory to FAT and ranthe NWZ-B130_V1_01.exe (firmware) again. the system reset and itworked! i only had 20 songs so losing the files was no big deal. i wasjust glad it started to work again.

anyway, hope this helps someone. if you have questions, just message me. have a good day.

Anonymous

1 Answer
Posted on Jun 23, 2009

SOURCE: Device unable to start on computer- Sony walkman NWZ-B135F

It seems that you have not wmp 11 installed. Removable storage will not be shown unless you have upgraded to wmp11. upgrade your old windows media player to 11 version. and it will show your device in window explorer in winxp sp2/sp3/vista etc.....
Have Fun!

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