Can't exit airplane mode I sometimes have this weird behaviour


My phone has zero mobile network
I decide I should "reboot" the GSM service, and go to airplane mode
I want to disable the airplane mode in order to return to normal state. After a long press on power button, I do have the "device options", however nothing happens when I press Airplane mode (airplane mode enable). I am stuck in airplane mode.


However this option is not disabled (greyed out). Of course, I have a SIM, and it will be detected after a reboot.

The other options from "device options" behave normally (I can turn of sound, turn off device or reboot). It just seems this part of the screen cannot be touched anymore.

Have you experience this? Is it a known bug? How can I disable airplane mode, but rebooting?

Samsung galaxy SII with latest official Android 4.0.4
This problem usually occurs when, for whatever reason, your phone is set to only use WiFi to make calls in the call preferences menu. On Android, with Jelly Bean upgrade, some apps will alter this setting apparently. Here's the fix. Enjoy!

From home screen, access Apps/Settings/More Settings/Wifi Calling (Press the part to the right of the on/off button to open another menu)/Connection Preferences. Choose either "WiFi Preferred" or "Cellular Network Preferred". Make sure the phone DOES NOT have "Never Use Cellular Network" selected, or every time you shut down your WiFi or go out of range of it, you'll be listed as in Airplane Mode in the on/off menu, but not in the apps/settings/.. menus, because your cellular transceiver is disabled by that setting. Note: These instructions and menu layouts are specific to my Samsung Galaxy S2 with Android 4.1.XXX Jelly Bean, but can easily be adjusted to other phones.

Hope this helps, and my best to all!