Find out complete and detailed instructions, tips and tutorials about unlocking SIM card and carriers.
How Do I Know If My Verizon iPhone is locked? The simplest way to find whether your Verizon iPhone is unlocked or not is by waiting until 60 days complete after your activation. After 60 days, your iPhone should be unlocked by default. The way to find it is by inserting a new SIM card … read more
It has become a routine for carriers to lock iPhones to use their networks, making it impossible for users to change the network during that period. It is taken as a precaution to encourage the customers to stick with only one carrier. But with the unlocking options we have, it is now easy to remove … read more
When you take a trip to another country, your iPhone automatically adopts a mobile phone network from your visiting place. Some travelers have so much experience that they already know which service has the fastest network or the best features. Hence, you might not be travelling, but you want to use the best carrier available … read more
Do you get an error when the sim card inserted in the iPhone does not appear to be supported. The message that says ‘invalid SIM card’ in the iPhone or iPad is a very common failure, which happens to many users. There is no specific reason, as it can be due to different factors. This … read more
Mobile phones continue to depend on SIM cards to call by phone or connect to the Internet. We use different security mechanisms to protect our phones but later forgetting the passwords and PINS we used, leading to the lock of the SIM card. Also, iPhones have a very strict process for SIM carriers blocking any … read more
Normally, the iPhones you buy by making a one-time payment, such as at the Apple Store, are released from the factory. But if you buy an iPhone by signing a contract with a mobile phone company, it is more normal to be blocked. It is not possible to know at a glance if the device … read more
When we buy an iPhone through a carrier, the most common thing is that it configures the device only to accept its SIM cards. This ensures that the owner of the iPhone does not change the card and passes it to another operator within the term of the stay. After this period, by calling the … read more
What’s Turbo SIM? The Turbo Sim is an unlock chip that is used to circumvent the factory unlock on iPhone. It is a small SIM card that sits between the phone and a regular SIM card. Turbo sim is programmable, sometimes they work quite well, but sometimes they fail. It is a method of “unlocking” … read more
DoctorSIM was founded in 2007 with the vision of bringing clarity and transparency to the tangled and chaotic world of global mobile telephony. The brand’s objective is to offer all kinds of telephony and savings services with a modern and advanced technological service. But when you deal with an online site and make payments beforehand, … read more
