Extreme made easy: GoPro HERO4 Session review: Digital Photography Review
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GoPro Hero4 Black review: Smooth 4K video that's still the best in the category - CNET
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Hero8 Black update page
Hero4 update page
GoPro Hero 3 / 4 - How to Upgrade Firmware : Beginners Guide - YouTube
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Finally ready to upgrade from my Hero 4 Silver. Which model do you recommend to upgrade to and why? : r/gopro
Hero4 update page
GoPro Hero4 Silver Review: King of the Action Cam Mountain | Digital Trends
Howto manually update GoPro Hero 4 firmware - YouTube
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Firmware update: GoPro HERO4 Black | walter sanford's photoblog
GoPro Hero4 Silver review: Hero4 Silver is the best GoPro for the money - CNET
