Problems with Android SIM card contacts cannot be collected

because Sim the card's contacts are saved in Sim Card of EF files, and each of these files is already fixed.

Therefore, there is no way to add a field to save the collected information.

Therefore, we can assume that we have the collection of information in the database, if we unplug the card, and then plug in, the collection information will inevitably be discarded (each boot will be re- SIM Card to import contact data), so this feature is meaningless!

Problems with Android SIM card contacts cannot be collected