The Happy Scrapper

If you’re a cell phone user whose carrier uses the GSM standard, your phone carries a tiny electronic card that provides a great deal of value. The credit card is termed a SIM (Subscriber Identity Module) card and it can keep your preferences. Just like important, this removable smart card can secure crucial computer data, that makes it better to change from one phone carrier to another.

Part of the trouble with cellular phones is because are complicated over a regular landline phone. Therefore, people reap the benefits of all the features. One region people overlook is applying the Sim. I’ve known friends who have recycled or sold cellular phones without removing prepaid credit cards.

What exactly are SIM Cards

All GSM phones require a SIM card to run. Some of the newer phones which use a 4G LTE network likewise need the charge card while they are saved to a CDMA system. A SIM card is a tiny printed circuit board that identifies that you the telephone network. Each carrier features its own SIM cards and so they may vary in proportions using the phone. Your cellular phone may come with one or you can purchase for them from retailers. The photo below shows one particular card I got myself in years past from your old Cingular network. The red circled area is the actual SIM card that you just punch out.

What Data do Sims Hold

SIM cards vary from the amount of data they’re able to hold. Current cards hold between 16 and 64K. When compared to a Sdcard that will not sound like much, but it’s enough to secure your:

cell phone number

rate plan

LAI (Location Area Identity)

Service features and preferences

Texting

Address book (info for approximately 250 contacts)

PIN lock

Portability and SIM Locking

As we discussed in the list, it’s not your cellular phone discussion your cell phone number, however your Sim. The Sim is utilized to authenticate one to your GSM carrier. And that means you can remove your Sim from the mobile phone make it into another GSM phone and then use it. Conversely, in the event you travel overseas, you might put in a Sim for another carrier serving that country to your phone.

While Sims can be portable, you will find situations when a Sim won’t be employed in another GSM phone. Most importantly, the cell carrier won’t accept the card as a consequence of SIM locking. This can be a practice the carriers use after they subsidize ordering your phone. As an example, Carrier A gives you a $600 Smartphone for $200 with a 2-year contract. If you decide to put your existing SIM card from Carrier B in to the contact you might go to a message like Enter Subsidy Password or Enter Special Code. A standard example in the US is the locked ATT iPhone.

The practice of SIM locking is much more common in the United States. Each country and carrier has its own rules. Some carriers will unlock the phone in your case following a set period. This restrictive practice has led many buyers to decide on unlocked cellular phones which promote for reduced.

Protecting Your computer data using a PIN Lock

Most GSM phones provide choice for visitors to save contact info towards the phone as well as to the Sim. Saving your addresses for the card has advantages. The very first is when you remain with similar carrier, you don’t need to re-key your contact cell phone numbers. Even though you change carriers, you can aquire a Sim reader and software that lets you manage the data.

An additional benefit of saving details to the SIM card is that you may protect your computer data employing a PIN lock. Many phones have a very setting to get a phone lock. A phone lock simply protects someone from utilizing the phone. But, if your phone was stolen or lost, someone could remove the Sim and utilize it unless it’s locked. It becomes an added layer of protection.

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