A physical Infinity-Box Dongle or CM2 Online/Digital activation .

Proper MTK VCOM and SoC drivers must be installed for the PC to recognize the device in BROM or Preloader mode. How to Install CM2MT2 v2.06 2019-04-28 - Infinity Chinese Miracle-2 MTK/Mediatek v2.06

The v2.06 update focused primarily on automation and security bypass for modern MTK chips.