The leading up to putting them on my w580i

Right firstly id like to apolagise in advance if this is a noobish question.

So i have a good understanding of the programs like XS++ and SEtool2 and have flashed a few phones and unlocked some so i know how to use the programs needed.

But i have literraly at my computer all day trying to figure out the exact way to enable me to do what i need to do to get them on. I understand how i will put them on but its the leading up to it that i have found not a solid walkthrough or anything i can risk my phones firmware on.

The things i have read seem to suggest that you must debrand it which i know what it means and i know it will be by flashing the firmware with a debranded one but what i need to know is:

1)is this all that needs to be done or do i need a custom firmware like one guide suggested?

2)How and where would i be able to get a debranded firmware for it wheter its a link to them or a website anything would be great.

So can anyone please answer these two questions and if possible either direct me to a guide or can tell me how to do it from there own knowladge i would be so grateful.

i am thankful for any replies wheter they are to skorn my stupidty or to help me i am grateful if you could lend a hand to someone in neeed of help.

thank you

First and most important thing is that you MUST do full flash (this is the best way)with MAIN,FS and CUSTPACK according to your phone status (depends on CID in your phone) and files you will find here Top Sony - Download and if you wont free download read this How to get access to Download Area? - Top Sony Forums or you can buy PREMIUM account on this site.

To be sure what firmware you need post log from XS++ here and we help you

if you have cid53 you can still do flashing/customization as i flashed my s500i into w580i and added flash menus and stuff, so ask us if you need any help :)

thanks guys i dont actually have the phone ill have it in a few days but ill be sure to post my Log up.

If i need to i have no problem paying for premium as its a great site with very helpful people.

Thanks alot its nice to know that i'll be able to get help now when i do get it.