Hello,
I entered into my phones engineering mode...activated the high speed sim thing...my phone gave a msg tat it will turn off in 3 sec.....it did n now its not turning on again?? i wud b grateful if i get to noe wat is to b done???
Please contact your network provider and explain them the issue about the high speed sim thing activated on your phone and have clear information about why it is causing trouble to your mobile phone.