Help unknown baseband no imei no signal on shw-m250s
So my phone is shw-m250s T (I don't know but like there's Olleh version this one has T logo on it so it may help)
My phone was first on 2.3.5 perfectly working without no problem but only volume button not working so i got those fixed and this whole adventure began. Since i was able to go into download mode and flash things i wanted to convert my phone to i9100 so i did using this thread:
Then later i learned that there's freakin 4.0.4 ICS official update on my phone so i freaking installed it and this all started from here.
First i was getting random signal lose and sometimes no signal always but i didn't take it seriously coz reboot was temporarily fixing this problem.
But since it was annoying me and i wanted to try new roms out there i tried to install Cyanogenmod v10 (i think) and after some try it worked and was nice there but totally no signal no pin code ask or whatever then i switched to Paranoid Android (latest version with halo and stuff)
It was even more nice than cyanogenmod and i enjoyed it but still no freaking signal or whatever but also this rom was draining my battery like hell even it's locked it drains my battery and when i sleep and wake up it's 13% from 99% around 8 sleep. Then i searched all over internet trying whole lot of things but i still didn't find it. I learned that this all things are because of corrupted efs folder bla bla and then i tried EFSPro Backup yeah it looked nice and it said it's done and gave me tar file with efs.img in it. I tried restore and it said success but still no signal or whatever please help guys i need all your help to fix my phone and get it to work.
My phone specs in case of need: (It's all lost way back then but i'm looking things back)
FCC ID: A3LSHWM250S
and all else is korean strange things and why my imei is not here...