Xperia Z upgrade issue from 4.1.2 to 4.2.2

[dinesh17]

I recently had my old xperia z replaced at the sony service center for a defect which had Android 4.2.2 but i got a new replacement Z for the defective one. But this new phone has 4.1.2 and when i try to update 4.2.2 does not show up.

Country : India

Model    : C6603
New Serial number : 356535052073231

Old Serial number   : 356535051679327

[savycrat]

Try updating using pc companion.

Also did you c6603 in india? I had heard somewhere only c6602 is availabe here in the indian market.

[dinesh17]

C6603 is available in India in  online stores. Yeah i tried using PC Companion also . It dint

[Alexander1]

If PC Companion says that you already have the latest software for the phone, the update is not yet available for your device. Since you got a replacement I suggest that you contact the store/service center to confirm that you got the right sales kit/replacement. 

[dinesh17]

Yeah the replacement phone is also a C6603. How come it is possible my earlier device received an 4.2.2 update and this one cannot ?

[Alexander1]

All devices don't get the update at the same time. There are different customization and such affecting the software. For more information see the following thread: 

http://talk.sonymobile.com/t5/FAQ/The-software-update-collection-topic/m-p/348066#U348066

[mustafakl · Accepted solution]

But C6603s in India do not get any updates at all.... I dont think they realise that they have sold any C6603s in India. I also have a C6603 and I have not got any updates. 

The way I see it is you return your replaced handset and get a C6602 or Flash your phone with the 4.2.2 roms of other countries.

[dinesh17]

Hey thanx I got it working by flashing another country ROM now enjoying 4.2.2