I HAVE A LG 270. AND JUST OF LATE I AM RECEIVING THE 'UNAUTHORIZED SIM' MESSAGE ON MY SCREEN. I HAVE INSERTED A NUMBER OF SIMS JUST TO CHECK IF IT IS A SIM PROBLEM. UPON HAVING IT CHECKED BY A MOBILE TECHNICIAN WHO TELLS ME THAT THIS IS A 'SOFTWARE PROBLEM'. AND THIS CAN BE CORRECTED BY REPROGRAMMING IT THROUGH A COMPUTER.

THEREFORE, CAN YOU PLEASE CONFIRM IF THIS IS CORRECT? AND IF NOT. THEN KINDLY LET ME KNOW WHAT IS CAUSING THIS PROBLEM.

L. DSOUZA, February 2010

the phone may be lock to a network say if you buy a phone from 02 then i will be locked to 02 have you tried other net work sims ? when u turn the phone on is there a network logo on screen or on the case
to update the software u can go to lg website
if the phone is locked then u can take it to a shop cost £5 to £10 to unlock or call the network up for a unlock code cost free to £20

sam747, April 2010