You can find the specific version 1.5.3 and newer versions at these repositories:

The remains a lifesaver for fixing null/broken IMEI after flashing. It’s lightweight, fast, and reliable – provided you have the correct database file.

Compatible with a vast range of MediaTek chipsets (MT65xx, MT67xx, MT68xx, etc.).

The tool uses low-level USB access and bootloader communication, which antivirus programs may falsely classify as a hack tool. However, downloaded from untrusted sources, real malware is common. Verify MD5 and use a sandbox.