The sim card toolkit can expand the functions of the SIM card, or it can be said to bind some applications to the SIM card; when the phone opens the SIM toolkit, there are "Group SMS", "Business" Featured", "Voice Magazine", "Music Ranking" and other 10 functions, and another important function is to identify card stickers.
#The operating environment of this tutorial: Android11 system, OPPO Reno7 mobile phone.
What is the SIM card tool kit for?
The sim card toolkit expands the functions of the SIM card, and can also be said to bind some applications to the SIM card.
For example, when I open the SIM toolkit on my mobile phone, there are 10 functions such as "Group SMS, Business Selection, Voice Magazine, Music Ranking". Of course, using these functions requires data traffic, and listening to music is also required. There are special software for Internet access. Who still uses these?
In addition, it also has an important function of identifying card stickers. For example, our mobile banking here sticks a thin card sticker on the original SIM card. My friend’s Samsung does not have a SIM card. Toolkit, it turns out that the card sticker cannot be recognized, so mobile banking cannot be used, but my mobile phone can do it.
If you don’t use the card normally, you can uninstall it and it will not affect your use.
If you need to use the card in the future, you can also find a system to flash it back, or install it manually. However, manual installation is more complicated. Please search Baidu for the specific method.
For more related knowledge, please visit the FAQ column!
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