M21 Lock Tool Pack / MiFi Tool: This is a common utility for reading device info (IMEI, MAC) and triggering the unlock.
Conclusion:
Insert a non-default (different carrier) SIM card into the MiFi. Mifi Unlocking Software M028t Download
LTE Generic Drivers: Installed via Device Manager to recognize the MiFi as a communication port. M21 Lock Tool Pack / MiFi Tool :
Method 2: Paid Server Unlocking Services like DC-Unlocker, SigmaKey, or Chimera Tool support the M028T. or Chimera Tool support the M028T.