[Predatorftp]

I have a Problem after the upgrade to 6.5

When trying to register to my network it says - "Cannot register on selected network. choose another network or disconnect your data connection and try again"

when inserting a SIM of another network (orange) it works 100% and when i put my SIM of (Cellcom) it give me that error unable to register.

any ideas on how to overcome this issue ?

thanks.