With regards writing an IMEI to the unit, if you have ordered a unit from Sierra Wireless with the default IMEI number of 012345678901237 then you are able to write a new IMEI number to the device once. If the unit has an IMEI number that is not the default then one of three things could have happened.
- It was originally ordered with a default IMEI number and this has since been overwritten meaning you cannot write a new one.
- It was ordered with a Sierra IMEI number, meaning that you cannot write it anyway, but given the devices you have bought all have the same number this is unlikely.
- They are counterfeit and have the same number to hide this fact which again is unlikely because they power up and work.
If you are using one of our official channels then you will be able to trace the units and what they were originally ordered as using the serial number (at+kgsn=3).
Regards
Matt