Quick Answer
Last Verified: July 2026
There is no direct USSD code to instantly network-unlock a handset from Vodacom South Africa. If your phone prompts for a “SIM Network Unlock PIN” (NCK) after inserting a competitor’s SIM card, this requires a handset carrier unlock, which cannot be completed via USSD. To request an official handset network unlock code, you must contact Vodacom Customer Care on 135 or visit a Vodacom store with your IMEI and proof of purchase.
If your screen says “SIM Blocked” or “Enter PUK”, you are dealing with a SIM security lock, not a handset carrier lock. You can retrieve your SIM PUK code via USSD by dialing *135# $rightarrow$ Services $rightarrow$ PUK number.
What the Service Is and Who Can Use It
Understanding the difference between device locking and SIM locking is essential before taking action:
| Lock Type | Cause | Method / Route | Eligibility Requirements |
| Handset Network Lock | Phone restricted to Vodacom network. | Contact Vodacom Support (135) or visit a store. | Phone out of contract / fully paid; original owner; valid IMEI. |
| SIM PIN / PUK Lock | Invalid SIM PIN entered 3 times. | USSD (*135#), VodaPay App, or SMS. | Active Vodacom SIM card or account details. |
| Blacklisted Device | Device reported lost or stolen. | Official Fraud / Customer Care department. | Proof of purchase, identity document, affidavit if un-blacklisting. |
- Who can request a handset unlock: Device owners who purchased their handset through Vodacom South Africa and have met all contract/financial obligations.
- Exclusions: Stolen, blacklisted, active contract-subsidised handsets, or phones imported from international Vodacom entities outside South Africa.
How Network Unlocking Works
Before You Start
- Identify Your Needs: Determine whether you require a Handset Network Control Key (NCK) or a SIM PUK Code.
- Find Your IMEI Number: Dial
*#06#on your phone’s dial pad to display your 15-digit IMEI number. - Gather Proof of Purchase: Keep your receipt, invoice, or Vodacom upgrade documents ready.
- Ensure Contract Status: Confirm that any fixed-term contract associated with the handset has concluded or that early termination fees have been settled.
Verified Step-by-Step Process
Option A: Retrieving a SIM PUK via USSD (For SIM-Locked Phones)
- Dial *135# from an active Vodacom phone.
- Select Services (usually option 2 or under the “Next” menu).
- Select PUK Number.
- Note down the 8-digit PUK code displayed on screen and enter it into the blocked phone.
Option B: Official Handset Network Unlock (For Device Carrier Locks)
- Obtain your 15-digit IMEI number by dialing
*#06#. - Call Vodacom Customer Support on 135 (free from a Vodacom phone) or 082 135 from another network.
- Request a Network Unlock Code (NCK) for your device.
- Provide the consultant with your IMEI, account details, and proof of ownership.
- Once verified and processed, insert a non-Vodacom SIM card into the phone.
- Enter the official NCK unlock code provided by Vodacom when prompted on screen.
Confirmation or Expected Result
- For PUK Requests: The USSD screen displays your 8-digit PUK. Entering it unlocks the SIM card and prompts you to set a new 4-digit PIN.
- For Handset Unlocking: Upon entering the valid NCK, your phone displays “Network Unlock Successful” or “SIM Network Unlocked”, allowing signal acquisition on any local or foreign network.
Fees, Limits, Eligibility, and Processing Times
- USSD Menu Usage: Accessing *135# is completely free of charge.
- Handset Unlock Fee: Vodacom may charge an administrative fee for unlocking handsets depending on contract age, device subsidy terms, and account status.
- Attempt Limits:
- PUK Attempts: Entering an incorrect PUK code 10 times will permanently destroy the SIM card, requiring a physical SIM swap.
- NCK Attempts: Entering an incorrect handset unlock code too many times (typically 5 to 10 attempts depending on manufacturer) can permanently hard-lock the handset to the network.
- Processing Times: PUK generation via USSD is instant. Official handset unlock codes take between 24 hours and 7 business days to be issued by the manufacturer/Vodacom back-end systems.
Common Problems and Troubleshooting
Code, Session, SIM, or Account Errors
- “Connection Problem or Invalid MMI Code”: Indicates network congestion or poor signal strength. Restart your phone and dial *135# again.
- “Session Timed Out”: USSD sessions automatically terminate after 30 seconds of inactivity. Redial the sequence and navigate faster.
- “SIM Network Unlock PIN Unsuccessful”: Do not keep re-entering random numbers. Verify that the NCK code supplied by Vodacom matches your phone’s exact IMEI.
When the Service Has Changed or Is Unavailable
If you purchase a second-hand Vodacom device that asks for a network unlock code, the original owner must initiate the request through Vodacom Customer Care, as proof of purchase linked to the original customer account is required.
Official Alternatives
When USSD cannot complete your request, use these official channels:
- VodaPay App: Download VodaPay, navigate to My Account $\rightarrow$ Manage My Number to view your PUK number or manage device settings.
- Vodacom Online Portal: Log into My Vodacom to retrieve account profile details and SIM PUK keys.
- SMS Request: Send an SMS with the keyword
VPPto 31050 from a Vodacom line to receive your PUK number via text message. - Vodacom Express Stores: Visit any official Vodacom outlet with your ID book/card and receipt for in-person support.
- TOBi WhatsApp Support: Chat with Vodacom’s automated assistant via WhatsApp on 082 009 8624.
For other self-service menu tasks, see our related guides:
- Vodacom — Parent hub for carrier services and settings.
- USSD Code To Check Vodacom Number — Find your own phone number quickly.
- Vodacom Internet Settings USSD Code — Configure APN and mobile data settings.
- Vodacom SMS Settings USSD Code — Manage short message center numbers (SMSC).
- Vodacom Please Call Me USSD Code — Send free call-back requests.
- Mobile Network USSD Codes — Cross-network lookup directory.
Safety and Privacy
⚠️ Warning: Avoid third-party websites or online tools claiming to generate “free master unlock codes” or selling illegal unlock software. Using unverified bypass software can permanently brick your smartphone, void your manufacturer warranty, and compromise personal security.
- Never Share Credentials: Vodacom personnel will never ask for your private banking PINs, account passwords, or one-time PINs (OTPs).
- Reporting Scams: If you suspect fraudulent activity or unauthorized SIM swaps on your line, contact 082 135immediately to place a temporary hold on your profile.
Frequently Asked Questions
What is the current Vodacom Network Unlock USSD Code?
There is no direct USSD code for network unlocking a device handset lock. To obtain a handset unlock code (NCK), you must call Vodacom Customer Care at 135. However, to retrieve a SIM PUK code to unlock a blocked SIM, you can dial *135#.
Is the problem a SIM PIN, PUK, or network lock?
- A SIM PIN/PUK lock appears when you enter the wrong SIM PIN three times. It prevents access to SIM services (calls, data) regardless of the phone.
- A Handset Network Lock appears when you insert a competitor SIM (e.g., MTN, Cell C, Telkom) into a device tied exclusively to Vodacom.
Can a phone be unlocked by USSD?
No. USSD menus handle subscriber network options, data bundles, and SIM PUK lookups. Handset carrier unlocking requires hardware/software unlock authorization (NCK) tied to the handset’s unique 15-digit IMEI number.
What proof of ownership is required?
To receive a Network Control Key (NCK) for a handset unlock, Vodacom requires the device’s 15-digit IMEI number (*#06#), the account holder’s South African ID or Passport, and original proof of purchase or contract documentation.
What should I do if the Vodacom USSD route does not work?
If *135# is unavailable, log into the VodaPay App, access My Vodacom Online, send an SMS with VPP to 31050, or call Vodacom Customer Care at 135.