Doing it now. It's going to be a little messy though
I deleted all Miis except my main one, made a new mii and used memdump.bin from
https://gbatemp.net/threads/spider-arcode.383937/
I opened the RAM dump with HxD and searched for "CFOG" as a text string.
Find the 94. It should be in the same place as in this image
Take note of the address beside, in this case it's 00895A90 for me. Open ar2bin.exe (from the arcode thread) and put the address inside. Seperate it with a space and go back to HxD.
Copy 4 blocks and paste it into ar2bin and reverse the arrangement.(Remember to replace 94 with 14)
Example:
14E7050B becomes
0B05E714.
Save it as arcode.cht on your SD card (remember to put arcode.bin too) and on the 3DS, open the mii maker then go to
http://bit.ly/1LgLvSG (
http://dukesrg.no-ip.org/3ds/rop/?LoadCode.dat&arcode.bin)
Once the browser crashes go back to Mii maker, favorite the Mii, then go into edit and change the birthday, sharing to on, and copying to on and save.
At this point it should block you from going back to homescreen.
Just click on the power button and click home and go back into Mii maker. It should still be golden.
And yes, it does work with streetpass
EDIT: Uploading a video for those who don't understand my internet's really slow so it
might take a while I'll post it tomorrow. It's getting late for me.
and updated
tutorial.