How do I fix my Nexus 5 after attempting to flash 5.1?

[AC Question]

Hi all
Went to flash stock 5.1 today cos I was sick of waiting. All was fine, backed up using NRT, installed 5.1. Then tried to restore my backup using NRT, and now whenever I turn on the phone it is at the "Welcome: Setup" screen with select a language. The problem is, two errors keep popping up. "Unfortunately, Nfc Service has stopped" and "Unfortunately, Phone has stopped".
I have gone into recovery mode and done both a factory reset and just a cache wipe but neither are solving it.
I would appreciate some help so much if anyone can

Thanks so much in advance.

 

[DLK1]

Maybe you got a bad download. Can you download the Flash ROM again and try to flash it again?

 

[LeoRex]

What version is NRT attempting to load? Find where Wugfresh is installed on your computer and go to "WugFresh Development\Nexus Root Toolkit\data\Factory_Images"

There you should find a directory like "hammerhead-LMY47I-factory-df12798".... what do you see there?

And are you doing a full wipe (you can choose to not wipe your userdata with the NRT)?