I'm not sure if this qualifies as the same problem, but I've kinda bricked my Wiz. I was trying to update it with the latest firmware, I'm pretty sure I extracted the right files and put them on the SD card, and booted it up while holding R. I got the "new firmware" screen, and then after that it turned black, so after waiting a few minutes, I turned it off. Now it only displays the GPH logo when I turn it on. I've held R while I've turned it on again and it has the same firmware message and black screen, but after waiting 30 minutes, I'm pretty sure it's not doing anything (though the blue light stays on). What should I do?
By the way, I deleted all the other files from the SD card. Is this a problem?
Edit: I've managed to restore firmware 1.1.0, by holding R even through the "firmware upgrade" screen and onto the real upgrade screen. But When I try to do the same thing with firmware 1.2.1, I just get a black screen after the "firmware upgrade" one. Resetting it shows that I didn't damage the 1.1.0 firmware. How necessary is 1.2.1 firmware?