How to solve "Unfortunately, Launcher has stopped." Galaxy Note 4? I'm receiving this error after enabling ultra power saving mode:


  "Unfortunately, Launcher has stopped."


Its dialog only has the option "OK". Restarting doesn't work. Clearing cache partition through recovery doesn't work. 

I can access settings by pulling down from the top of the screen but the settings menu is not complete; It only has Wi-Fi, Bluetooth, Airplane mode, Mobile networks, Location, Sound and Display entries.

My device is not rooted. It seems that the device is still on ultra power saving mode, even after clearing cache.

I have the option to factory reset through recovery but I prefer not loosing my data, if it's possible. What can I do?
Go into safe mode, this will filter out any third party app which could be causing problems.

Here's how to enter safe mode


Turn the device off.
Press and hold the Power and Volume down key.
Release the Power key when the Samsung logo appears but continue to hold the Volume down key until the device finishes restarting.
Safe mode will display in the bottom left corner of the screen.


When in safe mode, disable ultra power saving mode. You could also clear data for your launcher. To do that, go to settings>apps, in the menu, select 'show system apps'>touch wiz>storage>clear data.

If there are any third party apps that you suspect of misbehaving, you should uninstall them while in safe mode.