My Acer Aspire R14 laptop went completely blank a few weeks ago. When I unpluged the power cord, it started right up, but the moment I plugged the power cord back in it would shut down. The battery soon died this way, because it would not charge. I removed the battery then the it started up with the power cord. I thought it must be the battery, so I installed a new battery. that did nothing to change the problem.
So, I ordered a new motherboard and after a few weeks, I recieved it today, installed it, and I still have the same thing. It works well with the power cord plugged in as long as the battery is disconnected. But the moment I connect the battery, everything shuts down, not to be revived unless I disconnect the battery.
I need help!! What could be the problem?