Check your Windows Device Manager. If you see a yellow triangle next to "Qualcomm HS-USB", reinstall your Qualcomm drivers and restart your computer.
PD1930CF_EX_A_1.11.2 (or similar 2021 builds) Android Version: Android 9 (Pie) / Funtouch OS 9.1 File Type: ROM / Flash File (.zip or .rar) Pre-Flashing Checklist vivo y12i firmware 2021