You can't unless you unlock. Here's a guide, hope it works! : http://www.droidforums.net/forum/razr-hd-maxx-hd-development-hacking/241938-tool-easy-unlock-bootloader-komplete.html
Just go to the browser's settings and tap on Privacy and then choose to clear cache.
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Just go to the browser's settings and tap on Privacy and then choose to clear cache.