Hi,My nokia 2310 handset have aircel sim.in this handset no another sim is used.when i insert the another sim need security code.but i have no any security code.i submit the complaint against this in NOKIA CUSTOMER CARE and AIRCEL CUSTOMER CARE.But both of this service providers is not take any actions.both of these are resolved my solution with in 72 hours but the problem is same.Now it is 24*5=120 days past.So plz give me some suggestion what i do? i get lots of problems,now my moble is switched of.I am unable to call with this mobile.My lots of work is hampered.

Thanks.