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Hi, I've a problem with my SP (latest update installed).
Sometimes when i'm calling, i read on the screen a message that recites: "read error. please try later."
Can you help me? Excuse me for my english but i'm italian 
Hi and welcome to the community! Since you're new please be sure that you have checked out our Discussion guidelines.
It sounds like you have the NFC function activated. Go to Settings > More... > NFC, unmark it. Check the following post for further explanation:
http://talk.sonymobile.com/t5/Xperia-Z1-Z1s/Help-Read-Error-Try-Again/m-p/393807#M1209
oh, great! it works!
THANK YOU GUY!
Good to hear, anytime! :smileysmileythumbsup: