Gigabyte AD27QD help needed

[Damen888]

Recently bought this monitor (3 weeks ago) however today I encountered some problem. I updated the monitor firmware. Leave it awhile while it updates itself. 

 

Now the monitor seems it does able to switch on anymore. Rgb is glowing orange at the back of monitor (my settings was switch off those rgb lighting) However on/off does not have lights. 

 

Last thing i want to send back for repair, since I’m based on the Thailand. And they famously got a lousy after service. Possible waiting time to get it repair is 6 months to 1 year. 

 

Thailand does not have return service, kinda shity after service they have. 

 

May i I ask if anybody know what can I do?  

 

I had try taking out all the cables, put it in. Switching on without dp cable.

Tried changing to hdmi cable. 

Long & short press on/off button. 

 

All seems unable to work, to get it work.

 

Is there any way to hard reset this monitor. 

 

It it looks like the monitor has brick due to updating firmware. Which without updating firmware is not working good/stable.