Saturday, November 29, 2014

Samsung S5 can not get new Gmail or Hangout message while using mobile data

Problem description: In Mobile network(3G/4G data), you cannot receive "server pushed message", applications such as Gmail, Google hangouts whose who heavily relay on this "server push" technology(Google Cloud Message) can not work properly, no new message can be received.
- but, you can manually pull email by "refresh" button in Gmail app.
- after switch to Wi-Fi, no no problem at all.

Fix: Settings -> Data usage -> upper right corner(a 3-dotted button) ->
- make sure the "restrict background data" is unchecked,
- if it's already unchecked when you seen it, check it, then uncheck it. (UI and underneath setting may mismatched)

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