My iPhone is jailbroken and it crashed and it says cydia is causing the problem and my device is protecting it or something. I can't even unlock my iPhone.
closed as too broad by bmike♦ Jul 13 '15 at 17:28
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Cydia has not crashed, Cydia Substrate has protected you against a tweak which is crashing by putting your device in Safe Mode. To exit safe mode, tap Restart on the dialog which is shown when unlocking the device. If safe mode is activated next time the device resprings, then the problem is caused by a tweak which needs to be uninstalled. Open Cydia and uninstall any recent tweaks to attempt to fix the problem. If you do not know which tweak is causing the crash, you can install Crash Reporter which will find suspects to a symbolicated crash log.
Best bet to fix the software is to restore it through iTunes, restore from backup, then re-jailbreak it. This won't address any water damage issues though...