After Apple released iOS 6 beta 4 yesterday, we started getting flooded with emails and tweets concerning an “Unable to Check for Update” error that was occurring when trying to install the new beta over-the-air (OTA). If you’re a developer trying to install iOS 6 beta 4 and you keep getting that error, here’s what you can do…
Reboot your iPhone, iPod touch, or iPad Several developers have told us that, after getting the “Unable to Check for Update” error, they rebooted their iPhone, iPod touch, or iPad, and the OTA update then began to work properly.
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How to install iOS 6 beta 4 despite “Unable to Check for Update” error
Rene Ritchie – tipb.com