Share your experience!
i bought yesterday the xperia ray gold but when i use my pin to enter the mobile phone ,it asks me for anoher code.unlock code or something like that.that code refers to the cell phone and not my sim.do you know which the code is or where i can find it?thank you
Can you please advise exactly what appears on the screen of the phone so that we provide you the correct answer?
How did you set up your PIN?
it's the security PIN or pattern, if you forgot your pin or pattern, it will ask you for your Gmail and password if you don't remember that and can't figure it out then you need to use
Update Service to repair your phone, it will delete everything on your phone (your music and pictures will be fine)
http://dl-www.sonyericsson.com/cws/download/1/110/61/1309763183/Update_Service_Setup-2.11.7.13.exe
for future reference
Make sure you backup everything
Backup & Restore app
Use this links to download the apk
http://forum.xda-developers.com/showthread.php?t=1193802
or
http://www.elita-clan.com/downloads/backup_and_restore_v010935.apkhttp://www.elita-clan.com/downloads/backup_and_restore_v010935.apkor
http://www.mediafire.com/?1n07llajeaoo03y
How to install it
You need to
go to settings -> applications -> check unknown sources
download IO File Manager
https://market.android.com/details?id=org.openintents.filemanager&feature=search_result
download the backup & restore app, transfer it to your SD card, use OI file manager to find it -> tap on it -> install it
Contacts
just to play it safe sync your contacts w/ google if you haven't already
SMS/MMS
if you don't want to use the backup & restore app then
Install "backup SMS" to back up your SMS and MMS to your Gmail
https://market.android.com/details?id=com.zegoggles.smssync&feature=search_result
or your SMS use
"backup & restore SMS"
https://market.android.com/details?id=com.riteshsahu.SMSBackupRestore&feature=search_result
or for your MMS use "Save MMS"
https://market.android.com/details?id=com.schwimmer.android.mmsextract&feature=search_result
Call Logs
And for call logs this is great
https://market.android.com/details?id=com.yang.android.ansta
i bought that mobile phone from germany and i dont know good german so the translation that i will make is not exact.it says : password for unlocking must be given."i have never used it and this message shows up right after i put my pin.so that doesnt let me go to menu or the settings.i went to the shop today and they told me that i have put a password and they dont know it but i answered them that i was never able to reach the menu or the settings or the contracts.in fact it is like i have never used it
easily.i had no problem with my pin.the problem was after that because the mobile phone asked me one password ,but i dont know the password.how can i know it afterall.....
my friend i never used my phone so i can not fix it or make an update...i can not reach the menu or the settings.my phone is kind of locked by a code that i dont know but i really thank you for your interest and for the info.its my 2nd xperia so i have some experience but your info below is very helpful
you dont need your phone to be working for the update 
you can still update it,,
just download the above software mentione by uliwooly..
and the software will tell you what all to do 
just download it and try it for yourself..
i dont know why should i update it before i still used it but you probably know more than me....i left the phone to the store i took it to send it tou se but i dont know if they will make it without this password.so probably when i get it back i ll do what you and uliwooly suggest.the problem is that i use se mobiles 6 years and its the first time it asks me for a password without a reason.and the guys in the store didnt know too but i guess i didnt do anything bad.