How To Unlock Iphone 4 For Other Carriers. Touch this link and you will see the Problems Logging in with some options. I do not know my password, I do not know my username and I have other problems signing in. How to perform a hard reset depends very much on what you do and how the model phone is and what version of the software is running on it. Customers Unlock A Payment When They Go O2 The Phone Will Have A Code To Unlock Your Phone Within Three Days But although cell phones have been a major part of our lives for the best part of 20 years, confusion is still surrounded by unlocking them. Unlock permission for monthly phones, tablets, and mobile devices The device must be active on the T-Mobile network for at least 40 days on the request line. Wait about 30 seconds for the Sim Lock program to appear (delay may be longer if the user has already attempted to unlock the wrong code). Here are some important information about using the Verizon phone, (current) unlock policy, prepaid policy, and an explanation of CDMA and GSM and how it affects where you can take the device. specially marked World Devices Verizon, on the other hand, can not be unlocked upon request from a business technology that may be required by selecting a support line of the company at 800-922-0204. Perhaps your contract has expired and you will switch to another carrier, maybe visit another country, or you may only pay a premature termination fee and leave your contract early. If you can not handle the navigation and you have a GSM phone (a SIM card), you can replace a SIM card from another provider to see if it works.