The true nature of this shortened link is revealed by breaking down its components:
Flashing incorrect Google Account Managers causing hard-bricked firmware. Bit.ly Frp977
If a device is wiped using hardware recovery keys (Power + Volume buttons) rather than through the secure system settings menu, the Android bootloader flags the reset as untrusted. The true nature of this shortened link is
Here is where we enter the world of mobile tech. "Frp977" is very likely a misinterpreted or hyphenated version of (or for the generic "DEX iP977" device). Bit.ly Frp977