So, just to summarize (and to add one point), what would we like you to post:
1. The screenshot of Settings -> About phone menu with build number and f/w version.
2. Where the phone was bought (I mean country)
3. CDA number. Go to /system and open build.prop file. There'll be a string like ro.semc.version.cust=XXXX-XXXX (you'll get numbers instead of XXXX-XXXX). That would be great to know these numbers
4. Finally, please check this thread
. All the xperia mini pro owners will be thankful if you capture a short video by your sk17 in quiet place and upload it to youtube.
Thanks in advance!