Solved! Dell Latitude E7470 blinks orange and white with A/C Adaptor Plugged or not.

[philip.ayando]

One of our Dell Latitude E7470 Laptop in the office is not able to power on, It was working fine the previous day. When not plugged in and on battery power only, when I push the power button the battery indicator blinks orange and white. This also happens when the A/C adapter is plugged in.

 

[hang-the-9]

The blinking is likely an error code, you can find those listed on the Dell support site to check what the issue may be. That is a pretty new model, it's not in warranty anymore?