| | Re: Insert SIM card problem on my Curve 9300
on the OS6 navigate to the SIM CARD in options and type in MEPD and then try typing MEP4 as the network lock may be disabled but is the service provider lock disabled to. if it gives u an option to enter a unlock code, the device is not fully unlocked.
Current Device Bold 9900
Other Devices: to many to list before Signature restrictions