Where to start? (unlocking bootloader, rooting, custom kernel/rom, etc)

Mairtrus

New member
Mar 6, 2019
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Hello everyone

I have been reading the dev forums gathering info so I can install a fresh, optimized and non-bloated ROM in my wife's M4 aqua, but I'm a little confused about the bootloader/root part.
What is the correct order to follow? First unlock the bootloader, then rooting/install twrp, then flashing a custom rom? What ROM seems to have a better overall performance?

Btw, the phone is the E2303 model I think (the 8 GB one with single sim) with official MM and the service menu says that is possible to unlock the bootloader.

Thanks in advance ;)