By Chris Chang, posted Feb 17, 2011 at 10:27 AM, 462 views,

China Unicom Blocks Access To Cydia

It appears China Unicom has blocked the access of their iPhone customers to the servers the App Store alternative Cydia operates on, in mainland China, when using a 3G connection. Jailbreaking tools such as GreenPois0n and Limera1n, once installed on the iPhone, will not be able to download the Cydia package unless you have a VPN setup on the iPhone, or using other repos.

Actually, China Unicom has blocked the Cydia servers since December 2010, and Chinese iPhone users will notice the issue when Cydia tries to get updates from apt.saurik.com. They will see a ”Host Unreachable” message or ”Refreshing Data” error message. The fix? Just connect to Wi-Fi and you can get full access to Cydia without those annoying error messages.

Source: Beijing iPhone Repair