Why the Samsung Galaxy Note 7 batteries caught fire and exploded

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The Samsung Galaxy Note 7 battery fires and explosions that – quite literally – sparked two recalls and cost the smartphone maker at least $5 billion have finally been solved, according to Samsung.

The reason behind the Note 7 fires comes down to irregularly sized batteries, which caused the overheating, as well as other manufacturing problems in a second round of replacement batteries that were rushed out.

Gareth and John discuss whether Samsung have done enough and if we should be confident enough to buy upcoming Samsung phones.