Updating the DSi firmware is in general not needed and not a good idea because --
it does almost nothing except blocking older flashcarts. See here:
https://dsibrew.org/wiki/System_Menu
The only reason I can think of for updating to the latest firmware is to visit the (defunct) shop in order to unlock the "Data Management" option in the settings menu which does not appear before visiting the shop at least once.
Possible solutions:
- Install custom firmware on the device with 1.4.5 - this should unblock the older R4
- This requires Flipnote Studio on the DSi or hardmod/soldering at the moment.
- If the new exploit "Failzone" is released at some point, any DSi will be hackable with software only.
- If the R4 can be updated to work with DSi System Menu 1.4.5 and 3DS firmware 7.0.0-13 (and later), update the cartridge
- Hard to find out what it is.
- Please upload a picture of the game icon that shows up when inserted into a DS.
- Get the R4i Gold 3DS Plus to replace the old R4(?).
- In my opinion the best flashcart at the moment.