If your a1000 will not boot and the power light flashes then this indicates a fault; some of these faults are field-repairable (e.g. the case has is not properly closed or a component has come loose), however some may indicate a more serious hardware fault. The various patterns and colours with which the power light blinks can be used to diagnose the problem - for a list of these fault codes, what they mean and how to resolve them, please visit this link.

If this information does not resolve the problem then please raise a case with the Ava support team, ideally providing a short video of the blink pattern and details of the troubleshooting done to date.