Did you already updated your Mariko AMS Emunand to latest FW? Then is SXOS still run on emunand/sysnand afterwards?
I had Mariko FW 11.0.0 sysnand previously, and used to play AMS & SXOS on SYSNAND by swapping SD Card. Then I tried dual boot tutor from someone, with option AMS on SYSNAND &...