If you bought a used phone from Ebay, Amazon, BestBuy or any other platform, you may not be able to know the original account holder's information, in which case Carriers will not provide an unlock code. Carriers can request the information of the person who bought the phone or the account where the phone is registered.
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They may not have a code in their database or may not provide it due their technical issues or their code may not work if the phone has software issues. They may not able to unlock due to their technical problems. They offer the condition of being a customer for a certain period of time in the plan you bought the phone (some Carries require at least 1 year of active customer), they do not unlock the phone before the period specified in the Contract expires. If you have not completed the payment of your phone and plan, or if you have unpaid bills, they will not unlock without paying all your bills. If you bought your phone on a mobile contract plan, they won't unlock before the contract expires. Each Carrier has different conditions for Unlock Eligibility and they will not unlock unless you meet these conditions. Some Carriers can unlock phones under certain conditions and you must meet these conditions. They activate the SIM Lock at the request of the Carriers and tell the end users to contact the company that sold the phone.Ĭarriers have different unlock policies. The phone's SIM lock status is updated as Unlocked and the application unlocks itself by getting the unlock code from the database over the Internet. Devices locked using the Unlock App are unlocked by updating the Carrier database. In this case, it may be necessary to use an unlocking software. In some cases, even if you meet the conditions, the device may not be unlocked. Unlocking can be done through the mobile application, but mostly you need to provide the unlock eligibility conditions. Some US Carriers offer mobile device applications to unlock devices remotely. After the device connects to the database and receives the information that the phone has been unlocked, it updates the phone's local memory to SIM unlocked. To unlock the device, the database is updated and the SIM lock status is updated to Unlocked. If new SIM card is not allowed, it will show message like SIM Not Supported or SIM Invalid. When another Carrier SIM card is inserted into the iPhone, your phone connects to this database over the Internet and checks the SIM lock information.
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If you have the valid code and enter it on the phone, your phone will be unlocked permanently.Īpple Iphones usually do not ask for the SIM Network Unlock Code, Iphones and Ipads keep their SIM lock information in their online databases and usually the SIM unlock of the phone is removed with the update made in these databases. When you insert a SIM card of another mobile operator (Carrier) into your phone, it usually asks you to enter the SIM network Unlock (PIN, Key. Majority of mobile devices in the market can be unlocked with SIM network Unlock PIN Code. The above reasons may be useful for Carriers, and it is possible to qualify some of them, but this may put people who make their payments on time or who buy second-hand phones in a difficult situation. In such cases, they aim to make the phone unusable by locking it. Some malicious sellers working in their stores may show the phones to be sold on fictitious people and cause financial damage to the Carriers. In order to prevent this, they aim to make these phones useless by locking them to their networks for certain periods of time. Losing phones in shops or during shipping is also a big problem. In order to guarantee that they can redeem these discounts they apply, they want the phones they sell to be used with their own services, so they aim to keep the users on their own services by activating the SIM Lock for certain periods of time. These may be the discounts they offer for phones, or they may be plans that offer long-term and discounted mobile tariffs. Many Carriers offer various promotions and discounts to make their services more attractive and to encourage mobile service users to use their services.