hey LR
go to for all the firmware for your carts. The TTDS has the TTDS folder and TTDS.dat and Games in the root of the memory card. The R4i is pretty well same, just make sure that your DSi's are V1.3E or less. If you have a 1.4E then you need to choose a cart that is able to ignore the anti-piracy that Nintendo have devoloped - eg M3 Zero you need to flash first, then create a "Games" menu to place the games into
Not to hard, just a bit of mucking about
cheers
f
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