OnePlus Open SIM Locked? 8 Ways to Unlock It (2026)

Unlock your OnePlus Open from carrier restrictions and use any network provider What to Know Network Unlock Code is an 8-16 digit code that removes the carri...

Mar 27, 2026
6 min read

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Unlock your OnePlus Open from carrier restrictions and use any network provider

What to Know

  • Network Unlock Code is an 8-16 digit code that removes the carrier lock from your OnePlus Open.
  • Contact your carrier first. They are legally required to provide it for free if you meet their requirements.
  • Your IMEI is key. You'll need this unique number, which you can find by dialing *#06# on your phone.
  • Third-party services are an option if your carrier can't help, but research them carefully.
  • Enter codes carefully. Too many incorrect attempts can permanently lock the device to the network.

If your OnePlus Open is asking for a network unlock code, it's because it was originally sold locked to a specific carrier. This is common with phones bought on installment plans. The good news is that unlocking it is a straightforward process, and I'd start by contacting the carrier you bought it from.

Get Your Unlock Code from Your Carrier

This is the official and free method. Carriers have specific rules, but they generally follow the same pattern. First, make sure your device is eligible. This usually means the phone is fully paid off, not reported lost or stolen, and has been active on the carrier's network for a certain period, often 60 days.

Once you've confirmed eligibility, contact your carrier's customer support. You can usually do this via phone, online chat, or through your account portal on their website. Clearly request a "network unlock code" or "SIM unlock code" for your OnePlus Open.

They will ask for your device's IMEI number. On the OnePlus Open, you can find this instantly by opening the Phone app and dialing *#06#. The 15-digit number will appear on your screen. You'll also need to verify your account ownership with security questions or a PIN.

After submitting the request, processing can take anywhere from a few hours to several business days. Once approved, the carrier will send the unlock code to you via email or text message. Save this code in a safe place until you're ready to use it.

Use the Code to Unlock Your OnePlus Open

With the code in hand, the actual unlock takes about a minute. Power your OnePlus Open completely off. Remove the current SIM card tray using the included ejector tool and take out the old SIM.

Now, insert a SIM card from a different carrier. This is crucial. The phone needs to detect a "foreign" network to trigger the unlock prompt. Power the phone back on.

Once it boots up, you should see a message asking for the "Network Unlock Code" or "SIM Network PIN." Carefully enter the code you received from your carrier. Double-check each digit, as you typically only get a limited number of attempts.

If the code is correct, you'll see a confirmation message like "Network unlock successful." Your OnePlus Open is now permanently unlocked and will work with SIM cards from any compatible carrier worldwide. You won't have to enter the code again.

Using a Reputable Third-Party Unlock Service

If your original carrier is uncooperative or you purchased the phone second-hand and don't know the original carrier, a third-party unlocking service is a viable alternative. These services work by accessing carrier databases to generate the correct code for your specific IMEI.

Choosing a trustworthy service is important. Look for sites with transparent pricing, clear guarantees, and positive reviews on independent platforms. Be wary of any service promising "instant free unlocks," as these are often scams. A legitimate service will charge a fee, usually between $10 and $30.

You'll need to provide the service with your OnePlus Open's IMEI number and, sometimes, the original carrier it was locked to. After payment, they process the request and email you the unlock code, often within 6 to 24 hours. You then use this code following the exact same steps as a carrier-provided code.

If You Get a "SIM Network PIN Blocked" Error

This error appears if you've entered the wrong unlock code too many times. It's a security feature that temporarily blocks further attempts. Don't keep guessing.

If this happens, you'll need what's called a "Master Control Key" or "Unfreeze Code" to reset the attempt counter. Contact the provider who gave you the original unlock code, either your carrier or the third-party service. Explain the situation and request the Master Code.

When you enter this Master Code, you might see a confusing message like "Network Unlock Unsuccessful." Don't worry. This usually just means the block has been cleared. After that, you can re-enter your original, correct Network Unlock PIN to complete the process.

Unlock Code Not Working or No Prompt Appears

First, ensure you're using a SIM card from a different network provider. If you insert another SIM from the same carrier, the phone won't ask for an unlock code. Try a friend's SIM card from a different carrier to trigger the prompt.

If you have the prompt but the code fails, double-check you're entering it correctly. Ensure there are no extra spaces and that you're using the right number of digits (8 or 16). Contact the code provider to verify they sent the correct code for your IMEI.

On rare occasions, especially with newer Android versions like OxygenOS 14, the unlock prompt might not appear automatically. If you have a valid code but no prompt shows up after inserting a new SIM, try going to Settings > About phone and look for a "Network unlock" or "Carrier unlock" option. Some devices hide the menu there.

After Unlocking Your OnePlus Open

Once successfully unlocked, your OnePlus Open is free of carrier restrictions. You can now use it with any GSM network provider, which is great for traveling or switching to a cheaper plan. The unlock is permanent and persists through factory resets and software updates.

Remember to handle your foldable with care, especially around the inner screen's crease. Avoid pressing it with fingernails or sharp objects. Also, periodically clean the hinge area gently with a soft, dry brush to prevent dust accumulation, which could affect the mechanism over time.

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