Do I understand it correctly that it works fine if the battery is taken out and just the charger is plugged in?
I am not certain if the L430 has the reset button. If it does you will see a tiny hole that a paper clip will fit into on the bottom side. Generally it is in the centre of the edge opposite the battery, but may differ with different models.
Turn off laptop. Unplug the charger, take out the battery and press the power button down for about 30 seconds. Turn it over and locate the tiny hole, get a paperclip and push it into the hole against the internal button and hold for a few seconds. Turn it back over and press the power button briefly. If it turns on now you have a spare internal battery if not just plug in the power charger and see if it turns on and boots up. If yes then shut down and unplug the charger and replace the battery. Turn it on. Does it work now?
Do I understand it correctly that it works fine if the battery is taken out and just the charger is plugged in?
I am not certain if the L430 has the reset button. If it does you will see a tiny hole that a paper clip will fit into on the bottom side. Generally it is in the centre of the edge opposite the battery, but may differ with different models.
Turn off laptop. Unplug the charger, take out the battery and press the power button down for about 30 seconds. Turn it over and locate the tiny hole, get a paperclip and push it into the hole against the internal button and hold for a few seconds. Turn it back over and press the power button briefly. If it turns on now you have a spare internal battery if not just plug in the power charger and see if it turns on and boots up. If yes then shut down and unplug the charger and replace the battery. Turn it on. Does it work now?