is it possible to downgrade dsi system?

my brother upgraded the DSi System to 1.4.1 now it wont accept the r4i card is there a way to downgrade the dsi system? or if i format the dsi will it go back to lower version? thanks

no, its a one way street. You need to see if there is an update for your specific R4.

aww thanks that's sad though i have to wait then i hope there will be an update
Post Merge: [time]1298504363[/time]
another question though what flashcard works with the 1.4.1u DSi upgrade?

Off the top of my head:Supercard DSOnei
Acekard 2i
CycloDS iEvo
(Probably the iEdge too).

thank you! ill search for them ;D

ttdsi ex4i and probably iplayer also work with dsi 1.41

TTDSi that's the UK one? thanks ;D

I own 2 ttdsis one ttds

do you have a DSi with 1.4.1U firmware? does it works fine and all? thanks! <3

yes i do i havnt been playing my dstti much since i got a scds2 but my sisters have and with all the updates they have been able to play everygame they have tried

yes you canGo to the Settings menu on your Nintendo DSi and select Memory
Choose Format System Memory and then press Initialize System
Touch the Format button to perform the system reset on your Nintendo DSi. Once complete, your DSi will have been downgraded back to its factory condition with no updates, add-ons or extra

Replying to #11

No, you can't.
That returns everything to system default, bar the system menu.