2014-2017 C-Max Energi 3G to 4G modem update
This is just an FYI and documentation here for those members here that own Energi models.
With the upcoming 3G shutdown by AT&T in February '22, anyone who has an updated 3G modem (this particular recall was done years ago. If you currently use the MyFord Mobile app or website successfully, you've had this recall completed already) will lose the ability to use the associated services and features.
Ford has recently come out with a Customer Satisfaction Program (#21B09
There is no personally-identifiable information in any of the 754-xx-xx lines. In fact, they are supposed to be 100% identical for all 4G modems installed in a C-Max.
For remote functions to work, your 754-01-01 line must be B842 (the two other digits in the box after that don't really matter--they're just a checksum).
If you prefer, you can compare all your lines with the ones posted by @oldbeyondmeasure several pages back (I'm attaching his screenshot). If yours matches