Severe problems after upgrading OS

Theosis91

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Dec 29, 2016
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I just tried to upgrade android for my N7100, everything seemingly went perfectly fine and the process completed, after that I boot up the phone to the step that let me connect to a wifi network when I tried to fill in the password field the message "Unfortunately, Android Keyboard (AOSP) has stopped" occurs so I couldn't do anything but to skip it, next the device can't detect any SIM card while it's still there and then I completely stuck at the next step because "Couldn't sign in" and there's no other options available.
I have tried resetting and reinstall couple of times already and it all remain the same. I don't have any backup record, I can't even access sdcard through computer now to try to install other versions.
This is the first time I try to upgrade and I'm fairly new to android overall so any help to remedy this situation is much appreciated.

Thanks for your time!
 

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