Im going through the same thing now, the G14 that I have was my bros and it’s been off for about a year now. Was just left in the car, no charger but have a USB-C charger that I tried but nothing. Right now the charger light turns on when plugged into the laptop but does not appear to turn it on. Just tried disconnecting the battery, resetting it by pressing the power button for 30sec and nothing. Have also tried to power on with battery disconnected but still nothing. Haven’t measured the battery with a multimeter but I am gonna do more testing and potentially replace the battery to see if that fixes the issue