Just give us the country and service provider where your phone is tied and we like to review our system when that unlock is available. You eventually get an MSL code that gets you from the phone, but it SPRINT own internal policy that prevents them from contacting Apple to actually unlock the phone. Apple Iphone 4 Cdma Unlocked. How To Unlock Iphone 4 To Any Sim here. Once we receive the payment, the request will be processed in the estimated delivery date and receive email instructions on how to unlock. Simply enter the IMEI number of your phone in the form below, along with your email address, and in seconds we will tell you the exact brand and model of the phone so we can unlock the phone for you immediately. Pre-owned devices have normal wear and tear. Avail. Devices may vary. Limited 90-day replacement warranty: Provides replacement coverage for qualified phones due to a mechanical or electrical failure with a valid warranty and phone back through the shipping process.