While U.S. carriers are not allowed to charge for this service, your UK and Europe network may charge a small administration fee to unlock your mobile phone. Dual Sim Phones Unlocked Reviews. Now that your Galaxy is eligible to unlock, you can now focus on collecting the information you need from the mobile support provider support team to handle your unlock request. These operating systems are probably not very stable - but developers can use the devices to run another operating system while working on it. Because it has poor quality or spam response that has to be removed, an answer now requires reputation on this site (association bonus does not count). Alternatives to free smartphone unlock codes Buying an unlocked phone is a safer, but more expensive option to unlock a call. Sprint can give MSL the code for qualified customers, this does not mean that the device can be successfully used on another carrier in Germany. If you are very desperate to put another SIM card in there and will not wait, you can pay a few dollars at your local, sketchy-paid shop or online, but why pay if you can do it for free. To get a unlock code for your phone or tablet, contact your mobile service provider or the manufacturer who sold the device. Customers who unlock a payment while on the O2 phone will be sent a code to unlock the phone within three days after O2 received a phone program. You usually pay full price to get an unlocked phone, which can be moved between mobile networks, since it is not a mobile operator that subsidizes the full cost of the phone.