hello i have a cect a7 , and i live in honduras , the thing is i want to connect my phone to a gsm service, but it only says no service , the gsm bands are the 850/900 and 1800/1900 , and the phone itself has the same bands , i was wondering why i cannot connect it , since i have friends with almost similar phone bought in china and they work , ive been reading i can be fixed by using Engineering mode, but unfortunatly i havent been able to find the code , could somebody please help me !!