Doubt about Model Number

[gokulnath]

Hey.

I am using Xperia M Single SIM (C1904) and I saw that new 4.3 update was realsed for Xperia M Single SIM but there was showing single SIM Model number is C1905. Can you please explain why showing like that?

[Rickard]

The difference between C1904 and C1905 are what networks they support.

C1904:

UMTS HSPA+ 850 (Band V), 1900 (Band II), 1700 (Band IV), 2100 (Band I) MHz
GSM GPRS/EDGE 850, 900, 1800, 1900 MHz

C1905:

UMTS HSPA+ 900 (Band VIII), 2100 (Band I) MHz
GSM GPRS/EDGE 850, 900, 1800, 1900 MHz

[gokulnath]

Thanks for your reply. So only C1905 got 4.3 update right now? C1904 will get update soon?

[Rickard · Accepted solution]

The update is being rolled out for both C1904 and C1905 right now. But as usual the update is done gradually for each country and operator and may need local and operator approvals before you can update your phone.

[gokulnath]

I am from India  and I tried via Sony PC Companion and I cant even find. 
I think need more time! 

Thanks for your support!