Reflash my w660

i want to use jdflasher to reflash my w660i, what i need before reflash,
i have the main firmware, but does i also need custompack?
im from malaysia

to fully reflash your phone, you need MAIN + FS + custpack

i already have MAIN, but im confused to choose the FS and custpack

one more thing,
before i reflash should i remove all patches from my phone first?

if you are confused with the FS and custpack, read here : Top Sony - Languages Description

thanks riders4sia,
now i have done flashing,
so i need to backup my gdfs again before cuztomize my phone right?
and i also need to apply a quick access patch again?

correct me if Im wrong

if you are going to apply patch, you need to re-apply quick access patch again, backing up GDFS should be in the first place, if you flash it succesfully, you can backup now

but i read on some other source it said only backup GDFS once,
does it will cause something if I back up it again?

if you have backup onece, it's enough. i thought you didn't make backup before

thanks again