Hi! I heard once that it was possible to use a memory card with Mc Free Boot on a KDL-22PX300, but now all searches take me to a post that says its not. Can someone confirm/deny?
It's unlikely, since the SCPH-9000x came out in 2009 with the bios that fix the exploit. The KDL-22PX300 came out a year later in 2010, so it should have the new fixed bios.
No, it will never support FMCB. It has boot ROM v2.50 (Late SCPH-90000 series units have v2.30), which also doesn't check for updates anymore. It's not really an exploit that was patched, but they actually removed the whole update feature from the OSD.
