[athosellinas]

Hello, I bought a Z10 from O2 UK and get the unlock code from O2. I visit Cyprus and my Z10 worked fine with my home network! In my visit to Dubai, I bought another Z10 unlocked for about 70 euros less than the one i bought from UK. When I went back to Cyprus the new Z10 (from Dubai) was not working on my home network! I noticed that the os on the UK on is 10.0.9.348 and on the one from Dubai is 10.0.9.2372. I don't know the differences between the two OS, but the Z10 from Dubai is working fine in UK! I also notice another difference(hardware) on the back of the phone! While the UK Z10 is like this:
blackberry-z10-sim-600.jpg

the one from the Dubai is like this:
IMG_20130217_231535[1].jpg

You can see that the sim tray is at the other end, near by the micro sd tray which has a rubber to hold the memory card!
Any ideas if there is a real difference between the two OS's, and this is maybe the reason for the second Z10 not supporting my home network, and if is possible to load the other OS???

[howarmat]

its not the OS its the different radio bands the devices support. What are the actual model numbers of each device. Should be STL100-x i think

[Renwick]

It's strange, because both version should support GSM standard.
Btw the first one (the UK model) should be STL100-2, and the second one is definitely STL100-1.
If you Google search the two model numbers, you can find some additional information about supported frequencies in the official BlackBerry documents.

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