Hi my sony erriccson w508 phone Insert Sim card Problem

Hi. It probably means there was a missed call.

did you touch the gold connection lines on the back of the card? they are really senitive and your suppose to avoid touching them at all. Try gently cleaning them off and replace it back in your phone...also I know this sounds stupid but make sure the card isn't upside down..lol..

PUK stands for Personal Unblocking Key. This is a uniqueeight-digit code specific to your SIM card. This is required when the PINnumber to unlock your mobile phone is entered incorrectly 3 times. You are thengiven 10 attempts to enter your PUK code. If an incorrect PUK code is enteredafter the 10th attempt, you will block your SIM card permanently and willrequire a new SIM card from your mobile phone provider.
PUK codes can be obtained through the following ways -The PUK code is in your SIM card documentation Starter Pack.If you do not have this then -Please contact your phone service provider.
Your cell phone service provider can give you the PUK code once you give themyour account details and they have confirmed your identity.For details to obtain the PUK code for the SIM card, pleaseclick on this link and follow my instructions.
http://www.fixya.com/support/r5705889-puk_code

My sony ericsson j20i mobile showing "insert sim card or to view the demo of this phone first view demo" at first i thought it was simlock by that network after checking with omnius for SE software it shows the phone is not locked by the network
wat does it mean? why its not detectecing pls help me
my mail id is [email protected]

Please click on the link below to download the manual alternatively you can call 0357711277 to get user manual for sony ericsson phone.
http://www.sonyericsson.com/cws/support/phones/w508?lc=en&cc=gb

To install a sim in to a Sony Ericsson Z710i:

• Remove the battery cover by sliding the battery release latch down.
• Slide the SIM cars into it's holder with the contacts facing down.
• Insert the battery with the label side up and the connectors facing each other.
• Slide the battery cover into place.

you can unlock it here
http://www.mobile-unlocker.com/sony-ericsson/rs2wp8/
check, if your model is available in the list

you can check it with other sim card ,if it remains the same problem ,it may be locked to particular network wont accept any sim card other than the particular network ,you can unlock it and used to other network,try here http://www.onlinegsmunlock.com/sony-ericsson-w508/rs7wp9/

my sony ericsson wont display the writing in my cell phone the all mean is their but thier is no wrtting

how did you unlock it?