Just as an FYI, jumped back into the system settings twice in a row, and the second time, it kicks back the regular system version (without the RX prefix). Not sure if this is just a bug with the version display, or if you are actually dropped out of RX mode after checking the system settings.....
- How do i know if i'm in sysNAND or emuNAND?
- Check in System Settings, near the system version. RX-S stays for sysNAND, while RX-E stays for emuNAND. Be sure to be in emuNAND before updating.