This guide is based on information found on XDA and other Android forums, thanks to all the people who where able to give me some more information.
This topic is only for people who has a completely 'dead' phone, my problems where the following...
For the people with questions, this package is working fine here;
if anyone can download on 4pda forum thanks
There are some new roms on 4PDA and some older ones are updated, so i've added them to my MEGA mirror folder and you can find the ones in this post also;
Name: XPERIA Z3 V4.0 (port iOcean X7)
Dev: BabkinYuriy @ 4PDA
Edit: Apparently there's an AOSP 4.4.3 rom here: https://yadi.sk/d/2kIyoZA1gLgsL
Has anyone talked to 4PDA user slavka1988 about making a CyanogenMod rom? If he can build it as AOSP, certainly making a CM rom from that wouldn't be too difficult......