Good news.R4i gold 3ds from http://www.modchipwarehouse.com/r4i-gold-3ds-flashcart-for-3ds-xl-3ds-dsi-ds-lite-p-1.html can work on 3ds V6.0.0-11 directly.
I didnt catch up with this good news. i updated my r4i gld 3ds step by step, in fact,it's easy,just cut off the signal line on the PCB took my some time . =( Anyway,it was still a good news for other users.
I didnt update my console before updating my card. I updated my r4i gold on my 3ds by using the updated patch,that's how it works.
