Alright so I used to have a DSi on 1.4u with my Acekard 2i so that I could play my ROMs that I purchased and dumped, use a bit of action replay cheats, and run some moonshell and homebrew every now and then. However my DSi broke sometime in late 2010 and I only recently decided to replace my DSi with a new one, I found out this DSi has 1.4.5J on it making this Acekard utterly useless. From the looks of it, the acekard team won't be releasing a patch for it anytime soon. So I've decided to get a new Flashcart and I'm debating between r4i Gold 3ds and the SuperCard DStwo. Which one is more resistant to DSi updates? I want this new flashcart to last as long as possible before nintendo permanently blocks the flashcart. Also, how is the battery life with the DStwo? I've done some research and it seems to be mixed, some are reporting 50% of their battery life has been shaved off due to the DStwo cart while some are reporting just a few minutes of game time had been trimmed off. Finally, does the r4i gold and the DsTwo both have the exact same kind of features the Acekard 2i offers? (Action replay cheats, moonshell video, running nds homebrew, soft reset, wifi updates, etc.). Price isn't an issue for me, but I am mainly looking for nintendo update resistance and the features the acekard 2i has (more features are better though). TL;DR: I want a new cart because ak2i is dead, r4i gold or DsTwo? Oh and just want to make sure, flashcarts work fine on a japanese imported dsi right? Thanks everyone!