My phone doesn't want to turn on

i have entered high speed sim option engineering mode in s4 sigmatel china mobile phone does not power on

Dear sir
in the on,there is there just like hut just down the menu on the screen (first figure) press this figure by pen,then your menu open then go setting and do dual sim setting. your sigmatel s4 will turnoff from flight mode,











Kanti kumar jaipur

u will be able to
just swith it off and reebot and experience

i have a sigatel s4 model china mobile, i want the software to download from my pc pls help out

i have sigmatel s4 but it goes in flight mode and i put down the engineers code and change some settings, after 3 seconds it was switched off never starts yet pls send me the solution

i can help u if u have airtel sim .  The chinese (sigmatel) have the same settings of spice s4 so u can call customer care 12143 and know your settings by saying that i have spice s4 set . 

I have Sigmatel mobil without manual, where can I get the manual?

its simple 1122 is default code in chinese mobile...

hi, my cell phone is in flight and could not able to open the menu. Pls help to solve this problem. Signmatel S4 flight mode. Pls send me a mail on [email protected] how to solve...

Sir I have SIGMATEL T99/S90 mobile. Accidently its flight mode has been activated.
Now I am unable to make any call. Menu button is not working while shortcut keys are
working properly. I am unable to bring my phone to normal mode. Please help me