Xperia M SI number

[A-J]

Hello,

I wanna ask about the SI number. I know it stated at the back of the battery but can I check the number from the phone system?

[Uliwooly]

You can 

Service Menu

http://talk.sonymobile.com/t5/Xperia-arc-Xperia-arc-S/Service-Menu/m-p/103180/highlight/true#M10600

but it won't match the SI number on the back of your phone 

[A-J]

Thanks for replied

Ok, I did go to the Service Menu until I entered Software Info but there's no SI number item.

[Uliwooly]

Under service info 

[A-J]

Yes I did. Service Menu - Service info - Software Info... but didn't find it. Is it the Customization maybe? The format just like SI