GBATEMP admins are currently carefully and throughtfully testing the new GBA SP european units with the Flash2Advance carts. We have three different european GBA SP (all three different colors) and 5 different Flash2Advance sets (both 256 and 128 MB), and since we've been using all these since a lot of time, this is probably the best testing ground to officially understand if there really are compatibility problems of the GBA SP with the Flash2Advance carts and linkers. So far the tests have confirmed that, HELL YES, the flashing problems do exist and prevent gamers to use the new GBA SP to properly flash the F2A carts (remember that you can always run a F2A into a GBA SP, the problems are with the flashing). We are currently trying all the possible setups and all the possible versions of the flashing software (1.1, 1.2, 1.3, 2.0, 2.01) to see if the problem arises just in certain cases or always, and if there are possible workarounds for it. Tomorrow we will post the final results of this little GBATEMP "research".