User Manual Sony XBR-55X700D 55" Class 4K Smart LED TV

You can only download apps compatible with your TV, and they may differ from apps for mobile devices. The Google Play on the Android TV™ or Search for apps on the Google TV™, only display apps that are supported by the TV. To see if apps are or can be installed on the TV, refer to the following:
For Android TV and Google TV: Which apps can be installed on my Android TV or Google TV?
For other than Android TV: Checking all of the apps in the TV
An Internet connection and Google™ Account are required to install apps.
If you do not have a Google Account or want to create a shared account, create a new account by accessing the Google homepage. We recommend that you create a Google Account on a computer or mobile device.
About paid apps: There are free apps and paid apps. To purchase a paid app requires a prepaid Google Play gift card code or credit card information. You can purchase a Google Play gift card from various retailers.

Troubleshoot errors when downloading a software update
Follow these steps if An error occurred during the software update or Software cannot be updated using this USB device appears on the TV screen:
Make sure to copy only the file or files specified in the update instructions into the root folder of the USB drive. The TV may not update if there are multiple update files in the flash drive, or if the files are not in the root folder of the drive.
Make sure that your USB flash drive has enough storage capacity to save the update file.
Verify that your USB device is formatted in FAT16, FAT32, exFAT,or NTFS.
Remove any previous update files before using the USB device for the new download.
Press the POWER button to turn the power On and Off.
Repeat the installation process.
If the message No newer version of the TV software was found appears on the TV, your TV already has the latest firmware installed.