Share your experience!
I have a M2 Aqua when I turn it on, it comes to the operator's logo and it does not go further
TENHO UM M2 AQUA ELE LIGA APARECE XPERIA, CHEGA ATÉ O LOGO DA OPERADORA E NÃO VAI MAIS
I've edited your post as this is an English only forum, you can use Google Translate to reply and/or post and also, DON'T USE ALL UPPERCASE, it's like you are screaming.
Remove the SD and SIM cards and try again, have you exposed the phone to water? have you dropped the phone?