Hi guys I am having a problem and been all over google and didnt find anything. I have R4i SDHC .hk, unlimited upgradable. It was not working on 3DS. So I went to the official website and downloaded the update package. There were 2 files, update (a dat file) and update_dsi1.44_3DS22.214.171.124.nds I placed both on memory stick, then inserted memory stick into R4i and inserted R4i into my DS lite. Then I went to games and ran something called TTW TTDS Flash writer...or something like that, I dont remember the exact name. Then it started loading 1% 2% it went all the way to 100% and asked me to restart DS. I restarted and the Game icon changed to Deep Labyrinth Digital Bros. But now when I turn on the DS lite and tap the game icon to go to the R4i menu, all I get is a blank screen. Did I do the update wrong? How do I update the R4i unlimited upgradable so that it can be used on the latest 3DS firmware? hope to hear from you soon.