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G. Wiesen Last Modified Date: October 26, 2022 A SIM lock is a function built into many mobile telephones that allows phone service providers to lock a phone so it can only be used under certain circumstances. These circumstances are typically involved with retaining phone service, such as only allowing the phone to work in certain countries or on networks provided by a specific company. This locking function is connected to the Subscriber Identity Module (SIM) provided with the phone and ensures that the phone can only be used in a way the service provider wishes. A SIM lock can be unlocked by the company that provides the phone service or by using a number of different third-party applications.  Also called a “simlock” or network lock, a SIM lock is usually meant to ensure that customers who purchase a phone from a particular company continue to use that company’s services. Unless unlocked, a card that is locked will typically work only with the network provided by a particular company or in a certain region. This is done to encourage customers of a mobile service provider to remain loyal to that provider in the long run. Phones that have a SIM lock may also be less expensive than unlocked phones, since they typically ensure that the customer purchasing the phone only uses the network provided by the selling company. The SIM lock on a phone is typically associated with the SIM card provided with the phone, meaning a customer using a particular mobile provider will be locked on any phone he or she uses with that card. SIM cards allow customers to transfer their information and phone service between different phones. The SIM lock on these cards allows providers to ensure that a customer continues to use their service while under contract. Most mobile network providers can unlock a SIM lock if asked to do so by a customer. There are typically no statutes requiring that providers do so, however, so it is up to a company to decide whether a SIM card should be unlocked. Even once unlocked, the phone may still retain firmware associated with the service provider, such as menus and operating systems. This is why an unlocked phone may still display the logo for a certain service provider on startup. A phone with a SIM lock can also typically be unlocked using third-party programs and services. The legality of such services is somewhat questionable, but typically is allowed though such companies may charge a sizable fee. Information provided by a person to have a SIM card unlocked can also potentially be used by someone else to spoof the person’s phone information. This could allow someone else to use his or her service and could lead to legal complications or service cancellation in the long run. You might also LikeRecommended
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How to unlock SIM card on iPhoneYou might have seen the screen that informs you of the “SIM Locked” status before, it looks like this on the iPhone: If by mistake you press “Cancel” in the upper left corner of the “SIM is locked” screen, the SIM card remains locked. Since you actually want to unlock the SIM card, there is a quick way to get the SIM card unlock dialog back. By the way: If you’ve never defined or changed your iPhone SIM card PIN, check the default unlock PIN your carrier is using for the card. You can retrieve the default PIN by looking at the documentation or manual that was sent with the SIM card. The documentation also includes a Super PIN in case you entered a wrong PIN number repeatedly. This way your carrier can unlock your SIM card. Tip: You are not sure if your iPhone is unlocked? We show you how to find out if your iPhone is locked. Unlock iPhone SIM card via Phone AppPhone app → Call any numberThe easiest and most straightforward way to get the “SIM is locked” dialog back so you can unlock your iPhone is to open up the Phone App, then initiate a call with any number or any of your contacts. The dialog will return, allowing you to enter your SIM PIN. You can even enter a bogus number such as “333” and hit the green button, instead of calling an actual number. Unlock SIM on iPhone via Settings AppSettings app → Cellular → SIM PINAnother way to pull up the unlock prompt is to visit the “Settings” app. Head over to the “Cellular” section and finally select “SIM PIN”. Your iPhone should now ask you to unlock the SIM card. From here, you’ll also be able to change the actual SIM PIN itself. Read on to find out how to do it. Changing or disabling the SIM PIN code on iPhoneSettings app → Cellular → SIM PIN → Change PINBy following the same menu path as above, we can actually go in and change the SIM PIN that protects the SIM card our iPhone is currently equipped with. After entering the current PIN, simply tap “Change PIN” to enter a new one. You can also slide the toggle to the “off” position and disable the SIM PIN altogether. We recommended to at least use an iPhone Passcode for security and privacy purposes. You need to reset or reboot your iPhone and do not know how? No worries in our article How to reset iPhone we explain how it’s done. How do I unlock my iPhone SIM lock?Only your carrier can unlock your iPhone. Contact them and request an unlock. After you submit the request, it might take a few days to complete.. Back up your iPhone.. After you make a backup, erase your iPhone.. Restore your iPhone from the backup you just made.. How do I turn SIM lock off?Enable or Disable SIM PIN Lock on Android Smartphones. Click Settings.. Select Security.. Select Set up SIM card lock.. Toggle the SIM card lock feature On or Off. You will be prompted to enter your SIM PIN.. Can you unlock a SIM locked phone?You can remove the SIM lock by performing an unlock procedure on the phone. Although the specific unlock instructions differ according to your phone model, the procedure consists of obtaining an unlock code from your existing mobile provider. You can also buy a code online if the provider is unable to give it to you.
What does it mean when a SIM card locks?The SIM card on your mobile phone will become locked if you enter an incorrect personal identification number (PIN) three times. To unlock it you must reset your PIN by entering your SIM card's unique unlock key (also called a PIN unblocking key or PUK).
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What does sim lock mean on iphone
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