Most people who have update to the new firmware 1.1.3 with this method noticed that it had now become impossible to enter Edge settings under penalty of unexpectedly returning to the iPhone springboard.
For everything to work normally, you just need to reset all settings from your iPhone.
To do this, you must go to: Settings / General / Reset / Reset all settings and then let your iPhone reboot.
Then enter your Edge settings in Rglage / generals / Rseau / Edge , these will finally be saved!
Discussion on the forum.