Sony has quickly yanked PS Vita firmware 1.65, deployed last night on Network Update, over an undisclosed 'technical fault.' An update issued through the PS Blog indicates users that already downloaded and installed the update can continue to use their Vita - so be rest assured that it's not going to explode.
"PS Vita system software update 1.65 has been taken down temporarily due to a technical fault[...]
Continue reading: Sony Pulls PS Vita Firmware 1.65 Over 'Technical Fault'...