Hi guys. I got my hands on a O3DS on System Version 2.1.0-4U. I was blindfolded by it and tried to take a shortcut. I've copied ARM11.BIN to SDCARD and just executed it trough browser before making any kind NAND BACKUP. It sussefuly executed the file, and set the A9LH. But now, as expected, when i try to start the system i got the following msg: "An old unsupported NAND has been detected. Luma3DS is unable to bot it. Press any button to shutdown". The message is pretty clear. The point is: Is there a way to solve it? I don't have a backup. I've tryed the R+L+UP+A+POWER TRICK to update but seems that the CFW load before the command can be reconized and so i got the same error msg. It also can`t boot without the SDCARD.