It is easier than you think(sorry for my English)...you don't need fabric restoration. Probably wen you insert the SD card you set up your camera with it so wen it get filled the error appears . So follow the next steep and you going to get your camera back.
1. Turn off your phone
2. Remove your SD card (use the key that comes whit the phone if apply)
3. Turn on your phone
Open your camera that's it
This is an extra step
4. Insert the SD car (make sure it's clean I mean, you've been removed all pictures and videos and placed on your computer or whatever. Or put a new one)
I did it whit my ZTE ZMAX and works
Hope it can help