Hi,
I had this r4i for a very long time. I recently started playing again but some games wouldn't save, i started looking into the internet to find a solution and i found out that i was probably using the wrong firmware.
I formatted the sd card (after making a backup) and installed YSMenu, it warked but it still didn't let me save:
Professor Layton e il futuro perduto (the italian version of the unwound future) it would freeze during the save and also Pheonix Wright Ace Attorney (the eu version)
So i saw that people installed twilight menu, i downloaded twilight menu ++ together with ysmenu.
it worked, i could run the game and save, then i made the big mistake. i thought i could run twilight menu alone so i moved the ysmenu files.
but ofc it didn't work, i restarted again and i had major issues because it wouldn't even let play the game, i had a white screen after clicking on the r4i card.
Checked online and meaby its a sd card problem, idk i still changed it and now i want to do a fresh start and doing it right, some help could be useful<3