When you use your mobile phone's internet browser, various data is stored temporarily in the browser memory, such as cache and cookies. If you've problems loading websites, deleting this data may help.
Slide your finger left on the display to open the main menu. Tap Browser.
Tap the dots.
Tap Privacy and Security.
Tap Clear Cookies and Other Data.
Slide your finger upwards starting from the bottom edge of the display to return to the home screen.