I installed CFW and backed up the save data of a couple of games. I then just went about my normal day and when I come back I'm hit with the error 2124 4007. I can't access the Eshop to buy Smash Bros Ultimate or play online. I tried updating and even formatting my switch (without losing save data through maintenance mode). I still can't access the Eshop. Does anyone know how to unban my switch or am I just screwed? Lol, I just wanted to back up save data. Anything helps.