During 2021, users received several Over-The-Air (OTA) updates. The version numbers typically followed vivo's PDXXXX_ nomenclature. Common update logs from that year included:
Flashing erases everything. Backup your contacts, photos, and files before proceeding.
After flashing, complete the setup wizard and check:
Warning: Avoid random “direct download” sites offering .exe files – often malware. Instead, use trusted sources.