security code lost

wich mobile.. Kuch to detail do bhai..

The only thing that I think would solve your problem fully would be a visit to mobile company's service center. They would reinstall the software on your phone. But be ready to stay without this phone for 2-3 days as they won't do it instantly and would ask you to come later.

Here is a site which generates security code for your phone if you type in the IMEI number...
*nfader.z-host.ru/
Hope this solves the problem!