1. Are you ready for the Galaxy S20? Here is everything we know so far!

usb tether

Discussion in 'Android Help' started by Android Question, Aug 3, 2013.

  1. Android Question

    Thread Starter

    When I try to check the usb tethering , it gets unchecked by itself and says "mobile data unavailable or sim invalid" . Samsung s3

  2. divinebovine

    divinebovine Android Expert


    It is most likely that your carrier does not allow tethering. Many phones will enforce this automatically for their network. However, that particular error is telling you that there is a problem with your mobile data connectivity. Try a web browser on your phone and see if you can get to various websites.

    If you can't reach websites, check to make sure you don't simply have mobile data turned off. If your battery ran low, it might have gotten automatically disabled and didn't get re-enabled once your battery was charged again.
    Settings -> Wireless & Networks -> More... -> Mobile Networks -> Data enabled
    Also look there for other settings that might affect it. If a setting isn't at fault and rebooting the phone doesn't help, you may need to contact your carrier.

    If your carrier allows tethering but you still can't get it working once you're sure your mobile data is working, you might try PDANet, which is software made specifically to handle difficult tethering issues.
    PdaNet+ -- Internet Sharing for Android

Share This Page