Simlock And Netlocksperren
Called a simlock if the phone really only with the original map can be used with which it was originally shipped. All cards are approved, which work in the same network as the original card the lock is called Netlock. Netlocks are more flexible, because they allow other providers. Network would not only when a Netlock D1 s original D1 cards work, but also maps the D1 Disocunter Callmobile or Klarmobil. Other types of locks are for example the Xtra-lock (only for Xtra prepaid cards) or the Callya lock (only for Callya cards). The purpose of these locks is simply to retain the customers in the tariff. Often, the providers subsidized phones and just get in these costs if the customer uses the (usually more expensive) plan. He moves but with the subsidized unit to a cheaper provider it is a losing proposition.
Therefore, subsidized phones are usually locked to force customers to use this ur original map. After 2 years cards can use lock free unlock be. Time Warner is often quoted on this topic. The providers have hotlines or Web sites built on the unlock code can be requested without any problems. Before the end of the 2 year period cost unlock of the mobile phones from the carrier to the 100 euro.