4.X was my previous firmware, I'm trying my best, I'll tell you if I succeed!Before you do, go to the general 9.2 update page and choose one for your previous firmware, just on the off chance that works.
EDIT: I tried with every browser-based exploit, and nothing seems to work. I guess I have to buy a game with the 4.5 firmware, or do a hardmod nand recovery which, actually sounds scary.
Last edited by SigmaSebas,