ok bro i restored but why does it still says 2.1 version
That's still better than an unusable 3DS. He said his other thread he doesn't mind loosing the data.Judging by your last post, probably because you probably overwrote the NANDmin.bin with the 2.1 NAND while trying the 9.2 ctrupdate.
Now you will probably have to do 9.2 ctrnand transfer, but will lose everything you had previously on 3DS.