Order NCK / MCK / SPCK unlock codes by IMEI for Samsung, HTC, Kyocera, Tecno, itel, Lanix, Azumi and Hisense. Permanent network unlocks, no cable needed.
A code-based unlock is the oldest and cheapest way to free a handset: the network operator's database derives a numeric code from the IMEI, and typing it into the phone removes the SIM restriction permanently. No cable, no firmware, no risk to the device — and the code survives a factory reset because it is stored in the phone's NV data rather than in software.
Codes are brand- and region-specific, so the services below are grouped by manufacturer. The typical case is a Latin American, African, Asian or Japanese carrier handset that still prompts for a code when a foreign SIM is inserted; flagship Samsung and US carrier models no longer do, and need a server-side unlock instead. Each service page lists the exact models, release years and carrier statuses it covers.
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Applicability 📱All generic devices requiring unlock code on itel Supported Model 👉 Check Model ✅ Itel A05s 4G ✅ Itel A06
Model list published for a typical NCK service.
Insert a SIM from a different network, wait for the "SIM network unlock PIN" prompt and type the NCK. On most Samsung and HTC handsets the prompt appears within seconds; if the phone boots straight to the home screen without asking, it is already unlocked or the lock is server-side rather than code-based.
Then it is not a code-locked device. Newer Samsung flagships, most US carrier variants and anything sold after roughly 2020 use server-side locking, which has to be released by the carrier — use the carrier unlock services instead. Sending a code order for such a device will simply fail.
Yes. Once accepted, the code is written to the phone's non-volatile memory and survives factory resets, firmware updates and SIM swaps. It is not a software patch, so there is nothing to re-apply later.
Some suppliers will still return a code, but the blacklist block stays and the phone will not get service. Run the blacklist check on the same IMEI first; a code does not clear a carrier or GSMA report.
Usually five to ten wrong entries before the handset enters a hard-lock state that needs a cable reflash. Type the code exactly once, carefully — do not experiment with variants of the code.
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 Prices and coverage are read from the live catalogue; if a service is withdrawn it disappears from this page and its own URL returns a notice.