To use the tool for flashing or unlocking Vivo devices, follow these technical steps:
The tool is typically distributed to authorized service points. Unofficial versions are available on developer forums like XDA Developers upd download aftoolbbk5131 pkgunsptlistbin file
Ensure the download includes pkgunsptlist.bin . This file is typically located in the same root folder as the AFTool.exe or within a Config subfolder. To use the tool for flashing or unlocking