1. Windows Central Question's Avatar
    my l520 is error when i try to turn off the flight mode. so i can not use my sim card. can you help me whats wrong? someone said, i have to downgrade. my os is lcyan. and when error, i checking the extras-info and its ldenim. so, i downgrade my os. and now, its still error. omg:(
    05-01-2015 09:34 AM
  2. Ed Boland's Avatar
    Have the SIM card replaced. Your carrier should give you a new one at no charge. (AT&T does anyway) If that doesn't fix the problem, and your carrier isn't having any tower issues in your area, your phone's antenna/radios may have gone bad. Mine did just that.. ended up having to have the phone replaced under warranty. Check your warranty status; you might have to use it.
    xandros9 likes this.
    05-01-2015 10:49 AM
  3. RumoredNow's Avatar
    You might want to try this: http://forums.windowscentral.com/nok...tm#post2853178

    It seems this new problem has been cropping up and the motherboard/daughterboard stop talking to each other... The "trick" in the link gets them back on track.
    xandros9 likes this.
    05-01-2015 12:31 PM

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