If you are a technician, Chimera is the commercial "top" choice. While not free, their Qualcomm Motorola module is unmatched.
: Specifically optimized for the latest Android security updates (13 through 15).
: Uses a PIN-locked SIM card and an OTG keyboard to force access to Google Maps, which provides a gateway into the system settings. Security Warning
If your Motorola Qualcomm CPU FRP unlocker isn't working, check these issues: