Check for app updatesClose apps you're not usingFind out whether an app causes your problem Regards,J Wick

Restarting your device can help fix minor issues and may help the S Pen connect again. On devices with a regular Power key, press and hold the Power key until the Power menu is displayed. Tap the Power icon at the top of the screen, and then tap Rest...

Back up your device and return it to it's default factory settings via Settings > General Management > Reset > Factory Data Reset Try this, if it doesn't work, contact helpdesk. Regards,J Wick

You can store.apps, data, images, files, private conacts. Just hide the apps in regular screen. in secure folder?

It mostly happens when a specific app or feature is banned in your country. Try to connect your phone through VPN. It may help.J Wick