Stuck in flight mode

when u power it off=4 options,one is flight mode,,off it

Check settings - general - flight mode. It should be set to "Ask on startup" or something similar. Turn the phone off and on again. The flight mode question only comes when you turn the phone back on.

Hi,

When you switch on the mobile you get Activate your sim in flight mode because the flight query in settings is out to ON.

When it asks please press NO or YES it goes into the mobile phone.

To OFF the flight query please follow the below step

Menu > Settings > Phone > Flight query > OFF

Thank You

There are 3 things you can do
1. The SIM may be slightly dislodged from the contacts and may need to be put back in firmly.
2. Your SIM may be faulty and may need to be changed.
3. You can do a complete factory reset.
I hope 1 of them will resolve your issue.

software corrupted is my suspicion, you could flash new software to the phone in 1 of 2 ways:

the first way (which is what i would do but if you do not feel comfortable with then see second option) is to read this tutorial
http://forums.se-nse.net/topic/39748-tutorial-flashing-a2-phones-with-a2uploader/

download the files you will need which i will give you links to (you have to register but free) (files will be in rar so you will need to have winrar)

http://www.iprotebe.cz/sony-ericsson-firmware-c902-cid52-r3bh002-main-section1422.html

http://www.iprotebe.cz/download-C902_R3BH002_FS_WESTERN-EUROPE_RED52.rar-file11820.html

http://www.iprotebe.cz/download-Customize_C902i_Central_Europe.rar-file14716.html

second option is try using sony ericsson update service which you will find on their website along with instructions

some how you changed the proffile of your phone settings.. you can change it from phone settings or it was then wen you click the turnoff button once

Sounds like your phone is stuck in flight mode for some reason. Have you tried a Master Reset (you will lose all your personal data if you do this). 

try to reset it using the menu/settings/restore factory configurations

just change the setting to normal mode tats it....switch off and restart ...it ll ask u to change mode..

Do you get the option to select Phone or Flight modes when you power the device on?
If not, you might want to try using the scroll wheel to do the following:
1. Open the Main Menu. (Scroll to it & then push the scroll wheel in to select.)
2. Open Control Panel, then Device, then Flight mode. ("Prompt me with the Phone on or Flight mode choice..." is displayed.)
3. If the checkbox is unmarked, select it.
4. Save.
5. Power off and then on. The choice should enable you to activate Phone mode.

I hope this helps.