Here is how to reinitialize the settings on your camera. 

For all these manipulations, the camera needs to be in the menu of the camera. 

Reverting the camera to the Default Settings:

In the 9th tab, select Clear Settings and press on SET .

Select Clear all camera settings and press on SET.

Select OK and press SET .

1) Image quality at S1:

In the 1st tab, select Quality and press on SET. Select S1 and press on SET.

2) Image review at Off:

In the 1st tab, select Image review and select Off and press on SET.

3) Set the Auto power off at 15 minutes :

In the 7th tab, select Auto power off and select 15 minutes and press on SET.