I'm trying to update my MiFi unit and it repeatedly fails. It tells me this update is mandatory and the speed is like a 9600 baud modem. Is amyone else getting this error? Look at the weird date. See attachment.
See the MiFi 4510L firmware update instructions:
2.28 is the most recent version. There is a thread with lots of helpful information here:
Try running through the suggestions in that thread and see if you can get the problem resolved.