problem after changing shw-m250s to i9100
My friend has galaxy s2 korean version shw-250s 2.3.5 phone working perfectly.
He asked me if I can upgrade to higher android version, so I said I'll try.
After reading different articles and lessons,
I switched it from 2.3.5 shw-m250s to i9100 4.0.3
problem is it works in CLARO carrier, but does't work on another carriers.
I tried using different roms / 4.0.4 / 4.1.2 / and even tried CM10.1 RC version and still doesn't work on other carrier (which he was using before)
so far I've tried
and still having same problem.
is there any way to fix it?