Mobile phones are normally designed to work with assigned Subscriber Identification Module cards or SIM cards. SIM cards are microchips that efficiently store the information of the subscriber and his or her contacts. A SIM card is usually provided by network service providers and is automatically activated as soon as it is inserted into the mobile phone. Each mobile phone service provider assigns a seventeen- or fifteen-digit code to individual phone stations into a GMS or UMTS network. This unique code is called the IMEI or the International Mobile Equipment Identity. Hence, HTC IMEI unlock codes are important in unlocked HTC phones.
Now, the SIM card is particularly assigned by your service provider that is activated in the cell phone that you buy. SIM cards work such that the SIM card that originally comes with the mobile phone unit will work only for the particular unit provided. Otherwise, if the unit is the same with other unlocked HTC phones, the mobile phone can accommodate and use SIM cards from other network providers. HTC IMEI unlock is also equally important in maximizing your phone's functionality.
Phones bought in the U. S. , in particular, do not actually have unlocked settings. In fact, these phones require HTC IMEI unlock to work with other SIM cards. This is so because network carriers and providers claim the need to subsidize the cost of manufacturing those phones sold at the market. However, unlocked HTC phones can be possible after a period of time. This is also made possible since subscribers can request to unlock their mobile phones under specific charged fees.
Moreover, availing of unlocked HTC phones can be possible by buying a phone in its original unlocked condition from third-party vendors. But the disadvantage of this alternative is the expensive price that is close to full retail that subscribers will have to pay. In this case, some cell phone consumers find it difficult to shell out money for phones that can be obtained for free under plan coverage. The only good thing about going for third-party HTC IMEI unlock phones is because these kinds of mobile phones will be functional with any SIM card.
Competition is especially getting stiff. For instance, a certain network will offer cheaper calls during daytime compared with other network provides, while others offer cheaper rates in the evening or during weekends. This is where the advantage of unlocked phones comes in. Having your mobile phone unlocked only means availing the best service there is for all network providers since you can just practically switch SIM cards in your unlocked phone. Travelling is also a special advantage since consumers won't have to buy another cell phone unit to accommodate their roaming features. With your unlocked phone, you can conveniently avoid costly roaming charges and thus save money from buying local prepaid SIM cards in the country you are travelling to.
In fact, cellular phones that have been unlocked offer great benefits on resale value since the phone is no longer limited to a single network. These phones can even easily attract prospective buyers.