so games are crashing with the errorcode above. switch was obviously dropped. same error with new gamecardreader. the usbport was working but about to die, so i replaced it. planingon installing a sxcore and rebuilding the nand/swaping the nandmodul. after that im going to reflow the ram. did anyone had the same error? any suggestions?
so apperently the nand was damaged. made a backup of the nand and prodkeys. rebuild the nand with this tutorial and flashed it back to the same emmc = blackscreen. flashed it onto another emmc = black screen. 
im looking to build a nand from scratch with the original prod.keys and hoping, that the prod.keys arent corrupt. i think there are tutorials but i cant seem to find them. could you guys please help out with a link?