Share your experience!
i am facing problem in connecting respective 2G network of any SIM in my NEO V. I have tried using 2 or 3 sims, they are working perfectly fine in other handsets but they are not working in NEO V.
Whenever i switch to 2G network and selects the respective network it says "SIM doesnt allow this connection", but it connects to 3G network.
So baiscally 2G isnt working.Even i have updated the software but still no luck.
Please kindly help me in this matter
i think you need to contact your network operator regarding this issue and see what they say
share it here 
You tried other sims as well, are they all of same network carrier ??
if they are of different carrier then also you are facing this issue ?
But SIM is working perfectly fine in other handsets, so there is no problem with the network operator, n i have checked around 3 or 4 sims of different operators and still its not connecting but when i switch to 3G mode, it connects.
okhh
Suggest you to do a master reset
settings> privacy> settings reset
and after that again receive settings ( settings>sony ericsson > internet settings> accept)
one more thing, go through all your apps that controls such things such as battery defenders, managers, controllers and revise their settings, this issue could be due to some third party app also
I have just updated my phone's software and i have done that too, even factory settings too and right now there are no third party apps as there are only applications which come by default in the handset.
cant receive any settings as SIM is not working.......nothing happens when i select receive settings, it just displays couldnt download settings as there is no network
okh one last thing i would ask before taking one major step (software repair)
are you facing this issue from day 1
if not then from when ?
it happened recently , as i was traveling so i coudn't get 3G all the time, so i switched to 2G mode n from then its not connecting any network. I noticed this problem a week before.
okh here you go
Repair your phone's software via PCC OR SUS
PCC (PC COMPANION) – Repair your software with this .First do the setup without connecting your mobile to pc.(only connect when you are asked to). Do it as follow >> PCC > SUPPORT ZONE> SOFTWARE UPDATE> REPAIR SOFTWARE (written with blue)
Pc companion http://www.sonymobile.com/global-en/tools/pc-companion/
SUS ( Sony Update Service) ... download and install it on pc and follow the on-screen instructions http://www-support-downloads.sonymobile.com/Software%20Downloads/Update_Service_Setup-2.11.12.5.exe
or
http://www.sonymobile.com/global-en/tools/update-service/
both the links are same
i hope it makes up for you
waiting for you to reply here after repairing 
If the phone is not locked to this operator you could check if you get 2G signal inserting a SIM card from another operator.
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