A single wrong partition format can permanently damage the Vivo phone's IMEI, baseband, or bootloader. Without a JTAG or professional box, the device becomes an expensive paperweight.
| Method | Success Rate | Risk Level | Cost | |--------|--------------|------------|------| | | Very High | None | Moderate | | Vivo Cloud Unlock via Find My Device | Medium (if account remembered) | None | Free | | USB OTG FRP Bypass (specific models only) | Low | Very Low | Free (if USB drive available) | | Professional Box Tools (Easy JTAG, Octoplus Box) | High | Low (with experience) | High ($100+) | | Unauthorized "Magelang" tool | Unknown | Extremely High | Free (but risky) |