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SFR

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What is SFR France?

SFR (Société Française du Radiotéléphone) is one of France's largest mobile network operators, serving tens of millions of subscribers. Like all major carriers, SFR sells phones at subsidized prices with a network lock that restricts the device to SFR only — meaning SIM cards from other carriers (Orange, Bouygues, Free Mobile, or any international operator) will not work until the phone is officially unlocked.

Why Unlock Your SFR Phone?

Travel internationally: Insert a local SIM card abroad to avoid expensive roaming charges
Switch carriers: Move to a better plan on Orange, Bouygues, Free Mobile, or any other network
Resale value: An unlocked phone sells for significantly more on the second-hand market
Freedom: Use any carrier worldwide, on any compatible network

How the SFR Unlock Code Service Works

The unlock is performed by entering a Network Unlock Code (NCK) — a unique code generated specifically for your phone's IMEI number. This code is recognized by the phone's firmware and permanently removes the carrier restriction. The process:

Submit your phone's IMEI and carrier details at code-gsm.com
Our system retrieves your unlock code from the carrier database
You receive the code by email within the stated delivery time
Enter the code using the method below for your Nokia model

This is an official, permanent unlock — the warranty remains valid and the unlock survives factory resets and firmware updates.

How to Find Your Nokia IMEI

Dial *#06# — the 15-digit IMEI appears on screen. Or check Settings → About Phone → IMEI, under the battery, or on the original box.

Method 1: Classic Nokia Keypad Phones (Most Models)

Nokia 3310, 6300, 6233, 5310, 1661, 2700, 7230, and most keypad Nokia phones

Power ON the phone without a SIM card inserted
On the keypad, type: #pw+CODE+1#
To enter the special characters:
  P = press * three times quickly
  W = press * four times quickly
  + = press * twice quickly
Replace CODE with your unlock code — e.g. #pw+12345678+1#
Phone shows "SIM Restriction Off" — unlocked!

Canadian Rogers/Fido locked phones: Use #pw+CODE+7#

Method 2: Nokia C3 / QWERTY Keyboard Models

Nokia C3-00, C2-01, E-series with physical QWERTY

Power ON with a non-accepted SIM card (from a different carrier) inserted
"SIM Restricted" appears — press OK
Using the QWERTY keyboard, type: #pw+CODE+1#
Press OK — phone shows "SIM Restriction Off"

Method 3: Nokia Lumia (Windows Phone)

Lumia 520, 620, 630, 720, 820, 925, 930, 1020, 1520

Insert a SIM from a different carrier
Phone prompts "Enter unlock code"
Enter the 8-digit unlock code — tap OK

Method 4: Nokia Android (HMD Global)

Nokia 1 through 9, X series, G series, C series

Insert a non-SFR SIM card and power on
"SIM Network Unlock PIN" dialog appears
Enter the unlock code and tap OK/Unlock

Supported Nokia Models on SFR

Classic: Nokia 1100, 1110, 1200, 1661, 2300, 2600, 3100, 3110, 3310, 5130, 5300, 6020, 6070, 6085, 6100, 6151, 6230, 6233, 6280, 6300, 7230, 8210, 8800 and more
Symbian: Nokia N73, N78, N95, N8, N97, E71, E72, E90
Nokia C series: C1, C2, C3, C5, C6, C7
Nokia Lumia: 520, 620, 630, 720, 820, 925, 930, 1020, 1520
Nokia HMD Android: Nokia 1–9, X5, X6, G10, G20, G50, C1–C30

Troubleshooting

Problem	Solution
Phone does not ask for unlock code	Use Method 1 — type the sequence manually without SIM
"Code Error" or "Invalid Code"	Verify special character entry (P/W/+). Recount keypress timing
"Maximum Attempts Reached"	Stop all attempts immediately — contact code-gsm.com support
No prompt after inserting foreign SIM	Restart the device with the foreign SIM already inside

Frequently Asked Questions

Q: Is the unlock permanent?
A: Yes. The unlock survives firmware updates and factory resets permanently.

Q: Will unlocking void my warranty?
A: No — this is an official carrier-level NCK unlock. It does not modify the device hardware or software.

Q: How long does delivery take?
A: Delivery time is shown on the service page before ordering. Most Nokia SFR codes arrive within 1–3 business days.

Q: What if my Nokia is locked to a different carrier?
A: This service is for SFR-locked phones. Browse the full catalog at code-gsm.com for other carriers.

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