A SIM card has the same memory as a computer or smartphone hard drive. The data is stored there

     Grigory Lysenko, an expert at Yota Telecommunications, tells how often the SIM card needs to be replaced to ensure good communication quality.

     According to the expert, worn-out SIM-cards can fail.

     "This threatens the loss of data and the quality of mobile communication. The SIM card, like the hard drive of a computer or smartphone, has a memory. The data is stored there. New information is loaded into the memory of the card and the old information.

Sputnik.kz

Translated by:Standard.kz