Strange how Zelda is mentioned again, as its the 3rd time I have seen it mentioned including myself. Can you post up a step by step when it actually occurred like I have done a few pages back on this thread? Pics are good too if you can. Mine is now on its way to the GW team, which should get there soon.
Personally, I'd stay on 1.2 on your other console. 2.01b is known to cause save and instability issues frequently but depends on how bad you wanna play zelda.
As promised, here's a pic of my dead 3DS, along with my Gateway cards. Since I purchased my Gateway in late December, I only used 2.0B2 and never upgraded from any older versions of Gateway firmware.
Here's a summary of the sad life of my bricked 3DS:
---- Never played any games before GW exploit
---- Emunand was on latest FW 7.1U
---- Wifi was mostly on
---- Used 2.0b2 from GW official download page, MD5 matched the ones posted by Gateway
---- SD brand was 2GB Toshiba (came with 3DS), MicroSD was a PNY 16GB Class 10.
---- N/A the 3DS was never used online with OFW, only with emuNand
---- N/A because no previous flash carts used
Exploited the console with the blue card and copied the 2.02b launcher.dat to the SD. Gateway mode screen boots via holding L on profile. I then backed up the nand, set up emunand, and upgraded emunand to the latest firmware. Diagnostic checks always passed (did this several times, as the Gateway would occasionally freeze when I went to DS profile).
After setup, I played Zelda Link Between Worlds to completion (about 20 hours of play time over 2 week period). I would intermittently look at some of the other apps on emunand (i.e. miiverse, eShop, etc). After finishing Zelda, I switched to playing Super Mario 3D Land. Played Mario several times, and on Jan 28 I powered on the 3DS in the morning and was bricked (No freezing or anything beforehand, I turned on the 3DS a few minutes after waking up). I didn't do anything unconventional with my 3DS (e.g. modified Launcher.dat etc), so it's unclear to me why the bricking code in 2.0b2 was activated.
I already upgraded to 2.0b1, and my old Zelda and Mario saves from the bricked 3DS are working properly. However, I might go back to 1.2 since I already completed Zelda and I don't have any other games with the latest SDK in my collection of roms. Please let me know if anyone wants additional info about the brick, and thanks for the help!