There are two ways you can try to update your device:
. In any case update should be:
01.00.19 -> 01.03.13 -> 03.08.05 -> 03.18.16.
You can update via fota application:
Insert SIM card, send SMS commands to enter necessarry APN info, for example: 'SMSlogin SMSpasw setparam 2001:APN'
Set the update via fota application.
Alternatively, you can update your device via FW updater tool