How to fix error code 0000FE00
I found 2 things .. The first one is from Nintendo & the 2nd is not from Nintendo but tells you step by step to fix it.
1. Some users have been able to solve this problem by resetting the system.
To do so, hold down every button while the system is on except the
D-Pad and power buttons. Otherwise if the problem continues you'll
likely need to send in your system for repair. To setup a repair, call
Nintendo's Consumer Service Department at 1-800-255-3700 from the hours
of 6am - 7pm, Pacific Time, 7 days a week.