Originally posted by bankies97
On a lot of new jailbroken firmwares cydia has not been opening and crashing straight away. This happened to me and I had to restore my ipod and find a new jailbreak. The one thing you can do to fix this if it was to happen to you is to use ifile and go to /var/lib/dpkg/updates/ then delete everything in there. You have to get iFile before your cydia breaks because without cydia you can't get it and you will have to restore your iDevice and start again. So basically what I'm telling you to do is get iFile as soon as you get Cydia. It could save you a lot of hassle.
Right after you jailbreak this happens quite a lot. You just have to restart your phone and it works again.