[Windows Central Question]

in my nokia lumia 520,when i turn off flight mode,the butto will rapidly switch and is not going off.
network symbol is not shown but in settings >network,it shows the sim name,number,etc.
also imei is not shown.

anybody plz help,am a student.

i hav done too many hard & soft resets, used windows recovery tool ,nokia software updater(nsu-retail) but no hope..

plz help..
suggest smething working.

[ven07]

This is, unfortunately, a known problem when it comes the 520.. There are a few videos on YouTube that provide solutions. Give those a go?

just search the terms: lumia 520 flight mode issue

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[RumoredNow]

This problem has been pretty well identified as a fault on the daughterboard that houses the antenna (and other components).

Try this method to "jumpstart" the bridge between mother and daughter boards: 1520.3 airplane mode stuck

Look here for how replacing the daughterboard corrects the issue: Lumia 1520 stuck in airplane mode? It is caused by a defective microphone/usb daughterboard.