This should [almost] always be the first step Hold the home and power button down simultaneously for about 10 seconds until you see the Apple logo, and release.
This should [almost] always be the first step Hold the home and power button down simultaneously for about 10 seconds until you see the Apple logo, and release.
It has to do with privacy browsing settings. Press the double boxes in top right corner, preempt private at top then press done. It will go back to normal. If the top bar is grey, your browsing history will not be maintained.