Cydia is a software application developed by Jay Freeman (also known as saurik) for the iPhone OS that allows the user to browse and download applications usable on a jailbroken iPhone or iPod Touch. Cydia usually packaged together with Jailbreak tools such as redsn0w, pwnage, JailbreakMe, blackra1n, or any other jailbreak tools. It’s very recommended to install Cydia into iPhone.
If you did jailbreak iPhone firmware 3.1.2 using blackra1n, you can install Cydia by opening blackra1n app on your iPhone, select Cydia, then install.
If you did jailbreak iPhone using another jailbreak tool, make sure you choose Cydia to be installed while jailbreaking.
Now, I assume that you have Cydia app already installed on iPhone. Make sure your iPhone is connected to Internet.
1. Open Cydia app on iPhone.
2. At the first time running Cydia, you will be asked “Who Are You” which will determine how Cydia app interface will be displayed on your iPhone. Tap “User (Graphical Only)” (recommended for common users).
3. Cydia will check for packages updates and ask you to update its database if any updates available. You can see the progress in the top says: “Downloading packages” which will download new packages index.
4. Just let cydia downloading its database index.
5. When Cydia found any package is currently out of date, you will be asked to upgrade the package. When running Cydia for the first time, choosing Complete Upgrade is a must. Tap Confirm to start upgrading.
6. Wait until the process complete, then tap Close Cydia (Restart)
7. Now, Cydia app should be working fine. You can start add repo to Cydia and start installing package to modd and customize your iPhone.
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Hey,my iPhone 1st gen broke because I downloaded something and then friend to open cydia and no app on my iPhone was working when I tapped on it,this is happening also from apps that I download from the app store but I just want to know why this is happening. Anyway the only thing I wanted to do was fix it and then re-jailbreak my old iPhone but now my parents won’t let me because u fuckers messed up! You dirty dip shits! I want cydia and now all I can do Is wait unroll I get an iPod touch or anathor iPhone and the jailbreak it.I’m using a 3G but I want to jailbreak it and now my brother (who wAs also jailbroken at the time) hates me because of what you did!