dsi info required please

ok mates got a dsi that does not have the 1.4 firmware on it....he wants me to do him a card like i did on his ds lite... now im either going to buy acekard or r4i..am i right in assuming its the same process as its not the 1.4 isue..or will some of the games not work without the 1.4 firmware on the dsi sorry for al questions but doing me swede in just trying to read all threads /u tube videos

1- Does not update to 1.4 until your flashcard arrives and you update it.2- Buy an acekard 2i or M3i Zero. Both have 100% compatibility, R4i is just a clone of Acekard 2i and can't even run AKAIO 1.5