[Galaxy S5] Why the download booster does not work even it was enabled?

 A : Under next situations, Download booster feature doesn’t work.

1. When you download large files, the device may heat up.

    If the device exceeds a set temperature, the feature will turn off.

2. This feature supports Hypertext Transmission Protocol (HTTP) 1.1 only.

  So, It can be activated in Play Store, Samsung Apps, Samsung Video , YouTube,

  Play Movies, Play Games,   Internet(S-Browser), Chrome (ChromeBrowser), Baidu,

  and not all applications.

  The feature cannot be used with other protocols, such as HTTPS or FTP.

  So, it’s not supported regarding to attached files of E-mail , Streaming service like 

  Dropbox or Twitter

3. It support only for downlink under environment of Wi-Fi and LTE(NOT 3G) networks

5. When speed difference of Wi-Fi and LTE occurs more than 5 times, download booster

    isn’t supported.

    In the case the speed difference is big, it show rather inefficient situation on speed side if

    download booster  is applied.