kit kat -do different country versions affect cellular reception - Sony Xperia Z Ultra

i live in Israel, i flashed row kit kat hong kong, but somehow i feel the phone reception is not like before so does it matter what country version u install

אחי תנסה את הגרמני הוא עובד מצויין אצלי : http://forum.xda-developers.com/showthread.php?t=2687887

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Far East XDAII Rom, update to, UK XDAII ROM

Hi,
I have a Far East XDAII, bought in Hong Kong, In English. When I try to regiter to the Far East O2 site to pull the upgrade, it requires a phone number that obviously I do not have.
I was considering making a ROM upgrade with the UK version that is available without any registration.
NOW: Is there a risk here? Is there a chance that the process will not complete for problems of different country code?
OR; Maybe mine is already a UK version... , SO how do I check this?
Please help
Thanks
Yuval

mainland China Hero

Hi,
what are differences between China's and EU model of Hero.
Is it possible to customize Chinese model to EU version?
Regards,
dr wox
No answers?
Is it sufficient to upgrade to generic ROM, perhaps ones from modaco?
Regards,
dr wox

update

hello everyone
i have a question and i need help please
i live in EGYPT and and i'm going to travel to USA next week my question about updating my phone .. here in EGYPT last update is 2.3.5 ... so can i update my phone in USA and use the phone with new update after i come back to EGYPT !!!!
i dont think the u.s. has any further updates...i have the international version and live in the u.s. and had to flash updates with odin to get higher than 2.3.4
i'm working as a co-pilot so i travel alot so can i update my phone in any country and then use it in EGYPT ??!!
Makdo said:
i'm working as a co-pilot so i travel alot so can i update my phone in any country and then use it in EGYPT ??!!
Click to expand...
Click to collapse
if you got i9100, you can update anywhere via odin and use the phone anywhere... because international unlocked version will work any sim any where. minus 3g data that might not work on every carriers.
if you want kies to do that [dont know why you want that] you have to be running europe / asia ROM as theese two are the most frequent updated.

Have 5823, can I flash the USA firmware?

I don't know know alot about how the towers work, but I think if I put my USA sim on the 5823, it will charge me for data roaming so can I flash the USA firmware for 5803 on the 5823?
I'm running the Combined Nordic firmware on mine (to get fingerprint sensor working) but do get the proper one for your version, if you have the 5823, download one of those firmwares from XperiFirm!

Question Enabling Volte

I recently received the iii and I really enjoy it so hoping to overcome some obstacles so I can enjoy the full experience.
It was preinstalled with Hong Kong firmware, I successfully flashed it with Sea firmware but I have had no improvements. I am hoping to enable VOLTE and access all my telcos frequencies.
Does anyone have any suggestions?
Thanks in advance
I successfully flashed my Hong Kong version phone with the US ROM, so you can try to flash it if you found a ROM for your country. Also try to install or update "carrier service" in google play.
I updated carrier services and nothing has changed. I might flash another region onto the phone as there is no Australian region available at the moment and I don't expect a version to be released.

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