4x4x4 Final Corner Parity Error

[indoninjah]

Hello world. Apologies if this has been posted before, I did some hunting and didn't find much.

I recently got my Revenge and have successfully solved a few times (solving like a 3x3x3), but occasionally I encounter a parity error right before the final step (R' D' R D). The error creates two corners in the correct spot, and two corners in the incorrect spot. Unfortunately, I only know algorithms to shuffle the corners in a circular motion, always leaving two corners incorrect. So from the top the cube looks like this (with C denoting correct placement and X for incorrect):

C-C-C-C
C-C-C-C
C-C-C-C
X-C-C-X
or
X-C-C-C
C-C-C-C
C-C-C-C
C-C-C-X

Any help is very appreciated, I found a few different people saying to use the same algorithm on youtube, which didn't work every time.

 

[Muesli]

Unfortunately the method you use throws up this "parity".

For the

C-C-C-C
C-C-C-C
C-C-C-C
X-C-C-X

r2 U2 r2 Uw2 r2 Uw2 U2 y' [R U R' U' R' F R2 U' R' U' R U R' F']<-- (T perm)

I won't do the other case because I use a really weird N perm.

 

[indoninjah]

That's even longer than the other parity algorithm Thanks I'll try that now and edit this post with the answer to avoid a bump...

 

[Muesli]

That's even longer than the other parity algorithm Thanks I'll try that now and edit this post with the answer to avoid a bump...

It might be longer, but it is a combination of two algorithms that you will have to learn later on.

 

[indoninjah]

Actually I have some notation questions for you... does "w" mean both the outer and inner layer? And I'm completely puzzled as to "y"

 

[Jude]

Actually I have some notation questions for you... does "w" mean both the outer and inner layer?

Yes

And I'm completely puzzled as to "y"

"y" is a cube rotation, it's like a U move but the whole cube. (i.e. if you start with white on top and green on front on a normal colour scheme, after a y, white will still be on top but red will be on front)

 

[nokmanoks2]

R' U' R U' R' U2 R z U R U' R U R2 U' z' <----to rotate the corners.

Just hold the cube with the 2 corners that you will rotate to the left

z=its like rotating F but you will rotate the whole cube instead of just the U face