Today softwarelint just showed up the way on how we can turn on 2g data on ios 8.0.2.
Follow Simple 6 Steps Below :
Step 1 : Download iFunbox on your Mac/Windows link : http://dl.i-funbox.com/
Step 2 : Download the ipa patch from here : http://goo.gl/BMkotT
Step 3 : Connect your iPhone running iOS 8.0.2 to iFunbox
Step 4 : Now install ipa Patch using ifunbox
Step 5 : Open patch on iphone
Step 6 : Tap on “Open the patch” on app
Then you are done ! After all patching you will see network change and 3G will turn to 2g.
Just By tapping “Close the patch” turn on 3g again.