If the phone displays "Enter PUK" or "SIM Locked," the SIM is still functional. The user has likely exhausted their PIN attempts.
✅ The SIM is now unblocked. You can make calls, send SMS, and use data.
Even when PUK-blocked, the SIM can sometimes still connect to the Safaricom network for emergency/USSD. how to unlock puk blocked sim card safaricom
Calling Safaricom Customer Care (100) is a common solution. However, for security reasons, agents cannot provide the PUK verbally over the phone to a number they cannot verify via SMS OTP (One-Time Password)—which is impossible if the SIM is locked.
The PUK code will be displayed on the screen or sent to you via SMS. If the phone displays "Enter PUK" or "SIM
| Situation | Action | |-----------|--------| | SIM PUK-blocked | Get PUK from SIM pack, MySafaricom App, 100, or Safaricom shop | | Have PUK | Enter PUK → Set new PIN | | Wrong PUK 10+ times | Get replacement SIM (same number) |
A is an 8-digit code that unlocks a SIM card after someone enters the wrong PIN three times. After too many wrong PUK attempts, the SIM is permanently locked and must be replaced. You can make calls, send SMS, and use data
Since your SIM is blocked, you will need to use (such as a friend's or family member's phone) to access these services. 1. Using USSD Codes (Fastest Method)
This paper explores the mechanics of the Personal Unblocking Key (PUK) security feature within the Global System for Mobile Communications (GSM) architecture, specifically contextualized for Safaricom subscribers in Kenya. It analyzes the transition from a PIN-lock state to a PUK-block state, the implications of a blocked SIM on network authentication, and the procedural pathways available for recovery. The paper distinguishes between standard retrieval methods and the critical failure state of "SIM Rejected," offering a conclusion on the necessity of identity verification in mobile network operator (MNO) security protocols.