iOS 4.2 isn't installing on iPhone for some developers if our email box and a quick search of Twitter are any indication.
It sounds like the install starts fine but then has problems during the baseband update and spits out an error code 10. That's hook it up to Xcode and restore to 4.1 language.
That's also why it's a beta for developers, folks, not for production devices.
UPDATE: Justin Horn from WhenWillApple and the TiPb iPhone forums gi
[Twitter search, thanks angry complaining devs!]
Master your iPhone in minutes
iMore offers spot-on advice and guidance from our team of experts, with decades of Apple device experience to lean on. Learn more with iMore!
Rene Ritchie is one of the most respected Apple analysts in the business, reaching a combined audience of over 40 million readers a month. His YouTube channel, Vector, has over 90 thousand subscribers and 14 million views and his podcasts, including Debug, have been downloaded over 20 million times. He also regularly co-hosts MacBreak Weekly for the TWiT network and co-hosted CES Live! and Talk Mobile. Based in Montreal, Rene is a former director of product marketing, web developer, and graphic designer. He's authored several books and appeared on numerous television and radio segments to discuss Apple and the technology industry. When not working, he likes to cook, grapple, and spend time with his friends and family.