Xperia M2 and Xperia M2 Dual owners may want to know that the user guides for both handsets are now available. Each manual sits at 117 pages and should help answer any questions you may have on the handset. You can download the English manuals below, user guides for other languages can be downloaded here for the single-SIM version and here for the dual-SIM version.
Xperia M2 user manual
Xperia M2 Dual user manual