HP Envy k015dx m6 - Won't Boot

Question

I bought my laptop 3 months ago from the US. I live in a different country (Cyprus) without an HP Service Center.
My laptop 12 hours ago was ok...
Now, when i press the power, i see the power and f12 buttons blink once. After 2-3 seconds my laptop turns off. The screen is black without any indication.
I have contacted the online chat support and we did a hard reset. The same problem exists... They told me that this is probably a motherboard issue.
How i can get this fixed? The online chat support told me that they can't send a service box outside the US. How i can use my warranty if HP does not support clients outside US?

Answer 1

After a lot of research i found the service center here in Cyprus (MULTITECH CORPORATION LTD)
I have taken the laptop to the official HP service site 1 week ago (31/3/14).
After 7 days the technical department told me the following stupid answer:
" Your motherboard needs replacement. The official HP site responded to us, that your laptop is 5 years old and so the parts are not available anymore. We can't do anything else. It's your choice to come and pick up your laptop.
I asked to talk to another department and they told me also that HP does not have the certain motherboard (SN. 800926654) available in Europe. So we can't do anything else"
They also gave me the contact number for the greek HP site. I called them and they told me that they will call me back in max 24h. Lets see.
Question: Why HP gives Warranty if they can't provide it!!!!?!? The client does not care if a certain part is not available. The client does not have to call to different countries to solve the problem alone... If the laptop can not be fixed and is in Warranty then they must give a replacement ASAP.
FACTS
1. My laptop was first released in 2013
2. Here is my active Warranty 
Warranty type:   Base Warranty
Service type:  
Wty: HP HW Maintenance Offsite Support
Status:   Active
Start date:   08-Dec-2013
End date:   07-Dec-2014
Service level:  
Std Office Hrs Std Office Days
Std Office Hrs Std Office Days
Global Coverage
Standard Material Handling
Standard Parts Logistics
No Usage Limitation
5 Business Days Turn-Around
Pickup by HP
HP Ships to Customer Site
Deliverables:   Offsite Support & Materials
Hardware Problem Diagnosis   
Service type:  
Wty: HP Support for Initial Setup Status:   Active
Start date:   08-Dec-2013
End date:   07-Dec-2014
Service level:   Std Office Hrs Std Office Days
NextAvail TechResource Remote
2 Hr Remote Response
Unlimited Named Callers
Deliverables:  Initial Setup Assistance