my suggestion...
leave your E1ROKR BL to the original one, BL 0A.02.
my phone is original E1ROKR with BL 0A.02 but still can use any modder up to this day present.
yes BL 0A.02 can't have full backup or PSD backup but it mostly doesn't matter.
BL 0A.02 has the prevention about it, so you won't screw if you had bad modding.
just flash with the original full MP (any R373_4xR) with FB 3.06 then you're phone will come back to life.
yes i can't flash with R373_6xR or 7xR because BL 0A.02 will stucked on it
but i'm not using my video record as much as i need it to become unlimited.
and the quality of the sound... well... it sucks!
and one thing, i can make my MP for BL 0A.02 and 07.D0 with my E1ROKR.
but hey...it's only me though...