Samsung IMEI check plus NCK / MCK unlock codes for Chile, Mexico, Canada, the US and Europe. Read the model, region and lock state from $0.02.
Samsung devices are locked in two different ways and the IMEI tells you which one you are dealing with. Older and mid-range models ask for an NCK (network) or MCK (subsidy) code when a foreign SIM is inserted, and that code can be generated from the IMEI. Newer flagship and US carrier variants are locked server-side and have to be released through the carrier, exactly like an iPhone.
The services below are grouped by country because the code database is regional: a Chilean S25 needs the Chile NCK service, a Mexican Open Mexico unit needs the Open Mexico tier, a Canadian Bell or Telus unit needs the Canada NCK + MCK service. Run a Samsung IMEI check first if you do not know the region — the report returns the model code, the CSC region and the carrier the handset shipped with.
See all 39 services from $0.05
39 services on this page. Prices are live and per report; sign in for volume pricing.
Applicability 📱up to S25 Series from Chile, requiring Unlock code when inserting a non-Chile SIM card Supported 👉 Check
Fields a Samsung unlock order is checked against before submission.
Dial *#1234# — the CSC line ends in a three-letter region code (CHO, TMB, BTU, XSA, ZTO…). Alternatively read Settings → About phone → Software information → Service provider software. The region decides which unlock-code service applies, so check it before ordering.
NCK frees the network lock, MCK frees the sub-network / provider lock, RGCK frees a regional lock and SPCK frees the service-provider lock. Most orders only need the NCK; carriers that ship dual-locked firmware need NCK + MCK, which is why some services are sold as a pair.
For models that still prompt for a code, yes — the code is derived from the IMEI and is permanent. Models that no longer show a code prompt (most S-series from the S20 onward and all US carrier variants) cannot be freed that way and need a server-side release. The service pages list the models and years each one covers.
No. Entering a network code does not touch the firmware, does not trip Knox and does not void the warranty. Only flashing unofficial firmware or changing the CSC by hand affects Knox.
A reported or unpaid device can sometimes be released, but the carrier may re-blacklist it. Run the blacklist check on the same IMEI first; if it comes back reported, only the premium tiers that explicitly accept reported devices are worth ordering.
Last updated 2026-10-28. Prices and coverage are read from the live catalogue; if a service is withdrawn it disappears from this page and its own URL returns a notice.