Unlocking a MiFi device alters its core firmware. To prevent turning your device into an unusable "brick," prepare the following items:
It modifies the Non-Volatile Random-Access Memory where the network lock configuration code is stored. Mifi Unlocking Software M028t Download
Download and install the correct MediaTek (MTK) or Qualcomm USB drivers on your Windows PC so the computer can detect the device in download mode. How to Find and Download Mifi Unlocking Software M028t Unlocking a MiFi device alters its core firmware