My phone shows 'Insert SIM' after I put SIM card with iSIM? There is connection problem. Make sure the hole you punched on the SIM card match the chip on iSIM. Your SIM card and iSIM should mirror each other.Check the pictures on this page. Pull the SIM card and iSIM a little forward so that it is not too far back in the sim slot. If still not working, iSIM could be defective or damaged.

My Nokia BB5 phone still show message 'Restricted SIM' or 'Invalid SIM'? Some new Nokia BB5 phones need to cut A. Check the pictures on this page on how to Cut A. If your Nokia BB5 phone show 'Insert SIM', make sure you put in correctly. If your phone still show message 'Restricted SIM' or 'Invalid SIM', cut A and B If still show 'Restricted SIM', iSIM could be defective or iSIM not compatible with the phone and SIM. Please report to us for the compatible problem.

My phone show 'Emergency Call' or 'No Service'? Put your SIM card without iSIM into another phone. Power up the phone and wait a few minutes until you see the network bar. Put your SIM card with iSIM into the phone again.

I can make outgoing call but can not receive incoming call and text. You need to cut A/B so the incoming call/text will work. Most BlackBerry and SideKick phones need to cut A/B. A few Sony Ericsson and Nokia phones need to cut A/B.