Review on TKSTAR GPS Tracker TK905: Realtime Vehicle Tracking Device, Waterproof & Magnetic, 90 Days Standby by Kory Shelton

I bought one of these devices in January 2018 and it works perfectly. There are no problems with setup and operation. Bought 4 more in July, can't turn them on. Can't find her. Bought SIM cards from the same place, same provider, Rogers. I took the units to the technician for help. He says the GPS operating platforms expired in 1899. Says I need to pay TkStar a financial fee (annual or lifetime) to reactivate the operating platform. Anyone else having this problem? Why isn't this listed on the sales page? If I can't resolve this issue soon I will be returning them all for a refund. Not impressed with the complications I'm experiencing.