Do you have the Status 7 error while updating your Android device to Android 4.4 KitKat? Status 7 error means you had modified something on your Android phone. You can fix this error by reverting back your phone to original state. Below are the main culprits and solution for Status 7 error.
1. Do you have custom recovery (CWM/TWRP, etc.) installed? Then you can’t install the update if you have it. You need to flash the stock recovery via ADB to fix the error.
2. Have you deleted a system app from your phone? Or have apps like Xposed Framework installed? Then you should get back the system app to /system/app folder and uninstall Xposed Framework.
3. If nothing is installed or modified your device, but still receiving the status 7 error, try factory resetting your phone and install the update. It should solve your issue.