I downloaded a version of the RUU and that gave me "43 main version check fail" when I tried to flash it under fastboot oem rebootRUU
So now, I'm stuck with the phone with no OS.
Here's from the HBOOT menu
DELUXE_UB1 PVT SHIP S-ON
HBOOT and Fastboot works fine and I have TWRP, just that I have no bootable OS.
I would actually like to get S-OFF and also to OEM unlock to flash all the custom ROMs I want with custom recovery, but now it seems to be stuck.
I did download BOA custom ROM (http://forum.xda-developers.com/show....php?t=2695950), but I don't understand what it means by "brushed boot.img". IF i can get in the Android OS, I guess I can S-OFF from there and solve these problems once and for all.
Based on what I can find, it says that flashing another boot.img will fix the bootloop problem for S-ON users of the BOA ROM, but then again I don't understand which boot.img to use at all.
Please, your help is needed and much appreciated.
EDIT : Never mind, I solved it myself.