I too have a problem with the game.
I followed the steps, extracted the data files, put them in a SF_IV_DATA folder on the /sdcard, then extracted and copied the backup files (+the backup folder) in the TB folder on the sdcard. Installed the game, wiped the data, restored the data, the game starts, but after the Capcom screen and the "tap screen" dialog, the game wants to download resources, but does nothing, stays at 0%, and after a minute or so tells me that it failed due to no network connection (even though I have the Wifi connected).
Anyone else got this and has any solutions?
LE: Solved it, I should have copied the backup files without the backup folder they were in. Did that and now it works. Nice game