Disadvantages of physical SIM cards

[Md Kamrul Hasan]

Physical SIM cards have been critical to the expansion of our present mobile network.
They do, however, have some drawbacks. Companies have reduced the size of SIM cards multiple times over the years, progressing from SIM to micro, and micro to nano. However, the outside plastic packaging that held the connections and chip was merely reduced as a result of these size reductions. The chip and contacts haven't shrunk in size in any way. In essence, SIM cards appear to be as compact as they possibly can be.
That is an uncomfortable possibility in an industry that is always looking for ways to shrink gadget footprints. While e-SIM devices have the potential to be very useful for mass-produced smartphones, they are not without problems. The transfer of credentials to a separate device is the first issue that must be addressed. SIM cards are not able to be easily copied or accessed remotely. This implies that if a user's phone breaks and they need to move their information to a smart smartphone, all they have to do is manually transfer the SIM card.
Another concern with e-SIM devices is that, while they provide privacy and the capacity to be programmed, they are actually attached to the phone and cannot be uninstalled. This could be a concern for those who don't want to be followed because phones with just an activated Sim are easily traced by the operator. It was formerly possible to eliminate a phone's SIM card and so stop it from connecting to a network, making it difficult to trace. As we know this is the first time Grameenphone offers e-SIM services in our country.