Omnia i900 (DZAI5 offical) doesn't restart automatically after hard /soft reset

[Guest aJ S]

hi,

My omnia doesn't restart automatically even:

1. After press the reset hole.

2. After hard reset

3. After soft reset.

It switches off , and i have to return ON the omnia i900 manual with power switch on the top.

Need help and advice to resolve this issues

1. Battery is full

2. Offical ROM DZAI5 used

3. Didn't change the anything else?

thanks !