Simneverlock
3 min readNov 18, 2023

iPhone ‘Sim Not Valid’? Try This Free Unlocking Method

Introduction: Encountering a “Sim Not Valid” error on your iPhone can be a puzzling and inconvenient experience. This message usually appears when your iPhone is carrier-locked and rejects a SIM card from a different network. In this guide, we’ll explore the concept of a carrier-locked iPhone and discuss two distinct methods to unlock it: one through a paid service and another using a free online tool, SimNeverLock.com.

Understanding a Carrier-Locked iPhone: A carrier-locked iPhone is bound to a specific network provider, meaning it can only operate with SIM cards issued by that carrier. This is a standard practice among network providers, especially when phones are sold under certain contract terms or at discounted rates. When you try to use a SIM card from a different carrier, the “Sim Not Valid” message pops up, indicating the restriction.

Two Solutions to Unlock Your iPhone:

Opting for a Paid Unlock Service: Using a paid service to unlock your iPhone is a common approach. These services will simply contact your carrier and ask to unlock your iPhone. This is something you can do by yourself and they will charge you more than $100 for this service. You can also unlock your iPhone by using R-SIM (a special SIM card adapter), designed to override the network lock on your iPhone, granting you the freedom to switch carriers. While effective, this method requires a fee and comes with many negative downsides. Every iOS Update will make your iPhone locked again and signal issues are persistent because the chip is blocking the original signal of the SIM card and transmitting the “fake unlocked” signal to the network.

Free Unlocking via SimNeverLock.com: If you’re looking for a budget-friendly alternative, SimNeverLock.com offers a free and straightforward unlocking solution. The process is easy and only requires your iPhone’s IMEI number, which you can easily find in your device’s settings or by dialing *#06#. Here’s a step-by-step guide to using SimNeverLock.com:

  • Step 1: Retrieve your iPhone’s IMEI number.
  • Step 2: Visit SimNeverLock.com and input your IMEI number.
  • Step 3: Follow the clear instructions on the website to start the unlock procedure. You will be offered a list of apps to install.
  • Step 4: After completing these steps, your iPhone will be unlocked, enabling you to use any carrier’s SIM card. The iPhone will remain unlocked as long as you keep the app installed.

This method is not only cost-effective but also user-friendly, ensuring that anyone, regardless of technical expertise, can easily unlock their iPhone.

Conclusion: Resolving the “Sim Not Valid” issue on your iPhone can be accomplished through either paid unlocking services or by using the free, convenient option available at SimNeverLock.com. Whichever method you choose, unlocking your device will provide you with the freedom to switch between carriers as you please, making your iPhone experience more versatile and accommodating.

Important Note: Always verify the legitimacy of any unlocking service you use, and ensure that the unlocking process abides by your carrier’s terms and conditions.