How Do I Know If My Phone Is Unlocked? Benefits of Phone Unlocking for Consumers and Businesses

What is a Network-Locked Phone?

When people look into phone unlocking, they often ask: “How do I know if my phone is unlocked?” A network-locked phone (also called a carrier-locked phone) only works on one network provider. If you insert a SIM from another network, the phone usually blocks calls, texts, or mobile data.

Networks lock phones to reduce churn and to make sure customers complete a contract or instalment plan before moving providers.

Common reasons a phone is network-locked include:

The phone was bought on a contract or instalment plan through a network.
The phone came with a promotional offer from a network.

Many modern devices, including iPhones and Samsung Galaxy phones, can arrive network-locked when you buy them through a carrier. If you refurbish second-hand stock, unlocking is a simple and cost-effective step that can increase resale value.

How Do I Know If My Phone Is Unlocked?

You can usually check your phone’s lock status quickly. Try one or more of the options below.

Try a different SIM card: Insert a SIM from another carrier. If the phone connects and you can call, text, and use data, it’s unlocked. If the phone rejects the SIM or asks for an unlock code, it’s likely locked.
Check your settings: If you don’t have a spare SIM, you can often check in your device settings.

On iPhone: Go to Settings > General > About > Carrier Lock. If it says “No SIM restrictions”, the iPhone is unlocked. If it lists a network, it’s locked.

On Android: Go to Settings > Connections > Networks > Network Operators > Search Now. If the phone shows multiple carriers, it’s often unlocked. (Menus vary by manufacturer.)
Contact your carrier: Call your network’s customer service and share your phone’s IMEI number. They can confirm whether the device is locked and explain your unlocking options.
Use a service: Some online services check lock status using the IMEI. Many charge a small fee, but they can confirm the status quickly.

MobiCode provides a mobile phone unlocking service integrated into MobiONE. Businesses can also unlock devices through our online portal when processing multiple second-hand devices.

Why Phone Unlocking is Valuable for Businesses

If your business sells or refurbishes devices, unlocking can directly improve resale value and profit margin. An unlocked phone works on more networks, so it appeals to more buyers. That flexibility often supports higher resale prices.

Unlocked devices also widen your audience. Buyers don’t need to worry about network compatibility, so unlocking removes a common purchasing barrier. As a result, you can reach more customers and move stock faster.

Unlocking can also simplify inventory and SKU management. Instead of handling network-specific variations, you can standardise stock into fewer product lines. That reduces complexity and lowers the chance of fulfilment or stock errors.

For an external overview, see this guide on unlocked phones.

Phone Unlocking with MobiUNLOCK

MobiUNLOCK is a secure, professional phone unlocking solution that integrates directly into MobiONE. Depending on your workflow settings, MobiONE can run unlocking automatically as part of your process.

You can also unlock through the secure, web-based MobiServer portal. Start by collecting the device IMEI. Enter it into the portal, then follow the steps provided to unlock the device. If you handle higher volumes, you can use the bulk upload tool to submit IMEI numbers in batches.

Unlocking phones is a quick and cost-effective way to increase the resale value of refurbished stock. Explore MobiUNLOCK here to see the full service options.