Prime resets when finding eigenvalues

[Marcelo Vanti]

I did the steps outlined above under review 8151. When I tried to calculate the eigenvalues ​​of the 5X5 matrix in home mode , the calculator crashed. So I calculated again in the CAS , and the calculator answered as expected. After I returned to the home mode, and the calculator continued calculating correctly.
I powered off and on again, and the calculator did keep the normal functionning . However after a reboot ( On + Symb) , the calculator crashed again .
Now, it resets every time, giving the correct answer after reboot.