World first For new iOS 7.1 & 7.1.1 you can install the patch software called iRose which can force your simcard to work in the 2G networks to fix no service issues certian network simcards.
Some new Apple firmwares blocked the install from rebelsimcard.com/patch
Also you can install the file manally to the iphone but if you still want to install the patch over via safari using wifi then
Download IROSE/ IR0SE ipa file to use to install manually ([iR0seTool].ipa, 88 Kb) [Download]
go to this link and then upload the ipa to diawi.com and you will get a url from them and type that in the safari address page to download.