IMPORTANT: This file is only for use with the models identified. Not all models are sold in all countries.
This information is for the following models:
About this download
Benefits and improvementsThis utility updates the Walkman® player to firmware version 1.01 to resolve an issue where where the Walkman may not startup or playback properly.
- Mac OS® X
- 17.59 MB
Before You Start
This firmware update is intended for the NWZ-W274S Walkman® players that have firmware version 1.00 installed. To check the model and firmware version of your player, please follow the steps below.
Note: This update is not necessary if your Walkman player has already been updated by the automatic firmware update function to version 1.01.
If the version number is 1.01 or higher, this update utility is not necessary.
Download & Install
Computer System Requirements
Download and Installation Instructions
|Confirm Successful Update (optional)|
Questions & Answers
Possible Error During Update