Had very wierd issue with my New 3ds. So i played at work SMT IV Apocalypse(eur)(installed from freeshop),and at one moment,game was suddenly frozen...soo,i just shut down console nd tried to turn on it again,but i saw only black scree,so my next steps were like that: 1)tried to reset settings at luma(nighty build,versionfrom mid-february)...black screen 2)tried back up sys nand and then restore by newesyt version Hourglass9...black screen 3)tried load without sd card(installed a9lh v3 on console,so it could launch without sd card)...balck screen 4)returned home and tried other version of luma,latest official 6.6...black screen after sut up settings 5)then i wanted to try switch other sd card with same nighty luma...and taa daaa it finally worked 6)didn't want to risk reboot it,took out sd card and put mine main 200gb sd card while console was turned on to make back up saves of my games(coz i planned to flash my 9.2 nand dump) 7)after i done with saves....i wanted to try reboot again with main sd card inside....worked like a charm did few reboot and shutdowns and no problems anymore 0-0 8)tried to get on that SMTIV Apocalypse game to that spot where i've got that wierd "destroy-crush" but there was no problem anymore too. So what was the reason of that wierd issue? Any suggestions? Will try give more details:first i thought that something wrong with main 200gb sd card,but console didn't want to turn on without it too(before that,it was worked no problem,and works after it was fixed this situation),and there were no issue with this card before.Fat 32(formatted to 64kb clusters coz 3ds load apps alot faster in 64kb clusters)played on that card for like 8 months with no problem. Then i thought maybe some cia was the reason:yesterday installed from "famous site" translated Mapple Story 1.3,newest US Story of Seasons and Blaster master zero jap along with SMTIV Apoc. from freeshop.Installed on latest FBI. But others didn't had any issues with those cias... Sys nand the latest 11.3 eur. So still don't know why this situation was occured. And have question about nand back up,coz never did that before. 1)Do i need to reinstall all my cias after back up? 2)will i lose my saves? 3)or what i can lose be backup my 9.2 nand?