Unlock a vivo Phone — IMEI Checks, Carrier Unlocks and Codes

vivo handsets are locked by the carrier that sold them or by a code derived from the IMEI. This page lists the 90 models our device register recognises, explains how vivo locks a handset, and links the checks and unlocks that apply to it.

How vivo devices are locked

Most handsets from this brand are either code-locked (the phone prompts for a network code when a foreign SIM is inserted) or released by the carrier that sold them. Which one applies depends on the model year and on whether it was sold through an operator — the IMEI check tells you before you pay for anything.

The practical consequence is the same for every family: the phone works, and it refuses to activate on a SIM from another network until the record against the IMEI changes. Wi-Fi keeps working, so the device looks healthy right up to the moment the new SIM goes in.

vivo models in the register

vivo services

What to check first

Guides that apply to vivo

Model names and TAC counts come from the GSMA TAC register we query for /tac. Last updated 2026-10-28.