I can't remember my security code and the phone won't open. It's not 12345 and it doesn't work with a Mastercode either. This is the IMEI 353644/01/137064/8
There is a website Unlock-free.com that offers the free master reset code for basic mobile models.I searched for your Nokia 1110 with the specified IMEI and retrieved 5624037740 as the master reset code.