来自MSN

Here's How to Actually Fix the "No SIM Card Detected" Error on Your Android Phone

If your Android phone is showing a “No SIM Card Detected” error, you can’t connect to your cellular network. When that happens, you can’t use your phone to ...
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Android Phone's USB Tethering Isn't Working? Here's How To Fix It

If you're ever in a place where you need internet in a pinch, or your home network is down, you can actually rely on your Android phone for a temporary connection. USB tethering allows you to connect ...