1. Make sure that you have correctly inserted the SIM card – In the battery bay is an illustration of the required SIM card orientation. IMPORTANT NOTE – If using a Micro SIM use a SIM adaptor to ensure the correct location. Never insert the SIM adaptor without the SIM card, as the connectors will be damaged.
2. If correctly fitted and the message is still displayed, please clean the contacts of the SIM card using a dry cloth.
3. If still not being recognised please call your Network provider to ensure the SIM card has been enabled or to check if they have any further instructions.
Note: the B26 takes a standard SIM, using a Micro SIM or Nano SIM will require the use of a SIM card adaptor.