Step 1: 

We're going to start by clearing out the cache in Safari. Note that this will log you out of any websites you've signed into. Follow these steps to clear out the Safari cache on your iPhone:

  1. Open the Settings app, and scroll down to the fifth group of options (with Mail at the top). Tap Safari.

  2. Scroll down again and tap 'Clear History and Website Data'.

  3. Tap 'Clear History and Data'.

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