iOS 8.0.2 messed up my iPhone 5s I downloaded the update 8.0.2 on my iPhone 5s and it really did mess everything up. Nearly all my apps keep crashing when I try to open them, my imessage does not work. The only thing I can do with device is make calls and send SMS! I have powered off the device and turned it on again, but it doesn't help. 

Any suggestions what to do?
Jash, you can downgrade your OS to 8.0 by downloading the original IPSW file for your device.  (They are device specific, so make sure you have the model number handy for your phone.)  

http://www.redmondpie.com/ios-8-beta-download-release-date-features-rumors-and-news-update/

Once you download the version of 8.0 for your iPhone version - following this:

Connect iPhone to computer
Click on iPhone, then Summary
Hold SHIFT and click on restore. A file dialog window should open, allowing you to manually select the restore media. Navigate to where you downloaded the iOS software to, and select that .ipsw file from the list.  This is different for Mac vs. Windows - so it may be CNTRL or SHIFT for you. (SHIFT is Mac OS.) 

It should overwrite and install the 8.0 version to the iPhone.

Regards,

Ed