Charging - Blue and Green LEDs at the same time

[Flavor]

This can happen if your power supply isn’t strong enough to charge it fully. If I had to guess, I might think that it is just on the borderline. It’s charging it mostly, but it doesn’t finalize the charge. When both of the lights come on, that means it timed out while trying to finish charging. For some reason it thinks that it didn’t fully charge the battery, and it decided that it took to long to finish.

As a test, I would try plugging it into a different AC adapter.