Samsung UA55K5300AKXXV Have Trouble Launching/Using Apps, My File Wont Play, Want to Reset the TV

I Have Trouble Launching/Using Apps

When apps aren't working, these steps may help resolve the problem.

The problem	Try this!
I launched an app, but	Languages supported by the app may be different from the user interface language.
it's in English. How can
	The ability to change the language depends on the service provider.
I change the language?
My application is not	Check with the service provider.
working.	Refer to the Help section on the application service provider's website.

My File Won't Play

When files aren't playing, this may help resolve the problem.

The problem	Try this!
Some files can't be	This problem may occur with high-bitrate files. Most files can be played back, but you
played.	might experience problems with high-bitrate files.

I Want to Reset the TV

Initialise the settings to factory defaults.

Reset	Path	Description
	Settings	Reset Picture, Sound, Broadcasting, and all other settings,
Reset Settings	Support Self Diagnosis
		except for the network settings, default settings.
	Reset
	Settings	Resets all Smart Hub settings to their factory defaults and
Resetting Smart		deletes all information related to Samsung accounts, linked
	Support Self Diagnosis
Hub		service accounts, Smart Hub service agreements, and Smart
	Reset Smart Hub
		Hub applications.