Joke Collection Website - Blessing messages - Why can my brother make a phone call and send a text message without using a SIM card? I can't do it without a card?
Why can my brother make a phone call and send a text message without using a SIM card? I can't do it without a card?
It's possible.
First, see if your brother is connected to wifi.
If a mobile phone wants to communicate with another device, it definitely needs communication signals and networks. If your brother doesn't have a sim card, you need wifi or Bluetooth to create or access the network, but the so-called telephone and SMS are definitely supported by software, and the mobile phone itself doesn't have such a function. The phone itself calls and text messages are based on the sim card network-
The answer is not very professional, but it shouldn't be much different-
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