K850i asks to insert correct SIM card

[#1]

I thank you Dr_Chris for your immediate response on the above subject.  I wanted to immediately acknowledge.  But I could not find any button to click for that.  Even to open for this new entry I found difficulty.  After all I am very new to this.

Coming to the subject I repeat whole thing again.  "Today June2nd, 2011,  I set music on my k850i and listening to it keeping a little away from it.  After about an hour later I found it stopped and the screen started showing " Insert correct SIM card "  and the same SIM card being under use for nearly two years and SIM service is still valid."  I already tried with a new SIM working on another phone which also returned same message.  Further I have Sony Ericsson PC Suite 6.011.00 on my PC which had phone repair option.  I tried that also but it was of no avail.  I request all the members to spare time help me out of this problem..

with regards,

vpsarma

[vijayprince]

The handset is locked to a network other than the one attached to your current SIM which would mean you would need to contact the original network to request a network unlocking code. >>>>>>>>>>>>>>>> yup you need to purchase network unlocking codes to remove this error.. you can getthis fromany vendors online like Mobileunlocksolutions.com