Yes, to switch back you need to install REBUG_3.55.3_999_DGR_PS3UPDAT.PUP from XMB, then toggle qa flag on and then install 3.55 from recovery to dehash console.
Just to say it after using ermac's firmware for a while now: thx for this piece of hard work. it's just what it says:
a stable cfw which reminds me of kmeaw. no overhelming and massive feature list which, i suppose, can't be used by 99% of the average users, no modding till noone knows whether it is a ps3 or a tablet pc ) - just a supermodest cfw.
few different ways, flasher, downgrader 999 and another not as brick free as those 2 nothing is brick free but never had probs using those 2 over 20 times
Last edited by fantopoulos; 01-23-2013 at 02:26 AMReason: Automerged Doublepost