Default HELP: Wifi Dead + Custom ROM Issues

I currently have a Galaxy S2 for almost 3 years it has served me really well, even after all this time i still enjoy it and it looks really good.
But 3 days ago i lost it. I proceeded to try to find where it was so i used Samsung's "Find My Phone", ended up not knowing where it was and i sent some commands to lock the phone up as soon as it connected to the internet.
So since i always have my Mobile Data turned off i googled, and finded an app (Android Lost) that can help me to turn on Data via sms, plus retrieve the phone's location. Ended up installing it via Play Store and sending an sms to register and enable mobile data.
Well i woke up next day and i finded out it was in a friend's car so i pick it up and it actually installed android lost, but wifi isnt working. I cant get it to work.
My phone is i9100 with 4.1.2 Stock + Dorimanx 8.43
Currently i have already done:

- Reflash Stock Firmware (I've flashed an European Version and my Carrier Version)
- Reflash Serveral Kernels:
--- Siyah Kernel (Cant flash via zip, i get status 7 refering build=i9300 + Cant flash via odin gets stuck at NAND Write(Ive already used Odin 3.07 and 1.3 but it doesnt work))
--- CWM KitKat Compatible
--- Dorimanx 8.43
--- Apolo 6.2b
--- PhilZ-cwm6-XWLSS-OXX
- Restore old 4.4.1 ROM with CWM KitKat compatible kernel, that worked fine.

I have already wiped data + cache + dalvik, plus i runned all cleaning scripts (GS2KernelWipe, GS2ROMNuke,...)

ROM's not working:
- 4.4.2 CM 11 Alpha
- MIUI v5

I can still make calls, send messages, use mobile data and use bluetooth.

The current problems i need to get solved are the following:

-- Wifi not turning ON
-- Can't flash ROM other than the Stock one, all Custom ROM's with different kernel's even after wipes get stuck at Samsung Logo

Honestly i've been searching and tried everything i found for the last 3 days and i still have hope because i saw someone saying that
if bluetooth works so may wifi because they are related in the same chip.

Can someone help ?