Need help with my SE W850

Hi dear,

I have problem with my mobile SE W850. I can't turn it on ... When i press power button to switch on it, yes the LCD display till the sony ericsson logo and then the LCD will blinking forever. I have looking for it in this forum, but still i don't have any idea how to solve this :a006.
Maybe there's some one can help me before i give it to SE support center :a009 . I love this phone so much , due to i buy this with my first money :a011.

Thanks in Advance.
Daniel

My First advice : Try flashing with higher firmware version. Look here : Flash your phone and How to apply or remove patch using SETool 2 Lite
If it didn't solve your problem, i bet it would be hardware problem, probably mainboard to front board connector flex